runtime-webgpu-6PJLXU7X-CWXgPIZJ.js

js code-s-academy.com collected 2026-10-05 18:52:07 UTC 428,106 bytes, 2,250 lines download raw bytes

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vendor: 23,004 bytes, line 1

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z=re(bl()),b=d.pyramidEnabled,M=d.pyramidSlot,S=c(8),C=c(0).toVar();B(b.greaterThan(.5),()=>{let R=ie(a,A(0),A(1)),k=R.x.mul(S).toVar(),E=R.y.mul(S).toVar(),I=M.mul(S),D=c(1e9).toVar(),H=c(-1e9).toVar();for(let j=-1;j<=1;j++)for(let Z=-1;Z<=1;Z++){let $=ie(k.add(c(Z)),c(0),S.sub(1)),me=ie(E.add(c(j)),c(0),S.sub(1)),ue=Va(A($.add(I),me)),ce=z.load(aa(ue));D.assign(xe(D,ua(ce.x))),H.assign(Q(H,ua(ce.y)))}let K=g.mul(f.mul(2).add(x)),O=xe(we(V).mul(K),c(.05)).toVar();B(D.greaterThanEqual(r.add(v).add(O)),()=>{C.assign(1)}).ElseIf(H.lessThan(r.sub(O)),()=>{C.assign(2)})}),B(C.equal(1),()=>{i.assign(1)}).ElseIf(C.equal(2),()=>{i.assign(0)}).Else(T)}else T()}var Mp=U(e=>{let{depthTexture:t,shadowCoord:a,shadow:r}=e,s=os(r),i=a.xy.toVar(),n=a.z.toVar(),l=Ji.toVar(),o=W.pcssHalton,u=mr(da.xy.add(o)).mul(6.28318530718).toVar(),d=c(1).toVar();if(Nd()){let m=s.maskChannel,h=W.shadowMaskEnabled,f=W.shadowMaskGBuffer,p=W.shadowMaskTexture,_=c(0).toVar(),y=c(1).toVar();B(h.greaterThan(.5).and(q(m,P(1,1,1,1)).greaterThan(.5)),()=>{let g=Fa,x=W.shadowMaskResolution,v=W.shadowMaskFullResolution,V=cr.z,T=g.mul(x).sub(A(.5,.5)).toVar(),z=J(T).toVar(),b=T.sub(z).toVar(),M=Q(de(V).mul(.02),c(.05)),S=c(0).toVar(),C=c(0).toVar();for(let R=0;R<=1;R++)for(let k=0;k<=1;k++){let E=Va(ie(z.add(A(k,R)),A(0,0),x.sub(A(1,1)))),I=Va(E.add(A(.5,.5)).div(x)),D=Va(J(I.mul(v)).add(A(.5,.5)).div(v)),H=ua(f.sample(D).w),K=ua(q(p.sample(I),m)),O=ua(k===0?c(1).sub(b.x):ua(b.x)),j=ua(R===0?c(1).sub(b.y):ua(b.y)),Z=ua(Ne(de(H.sub(V)),M)),$=ua(O.mul(j).mul(Z)).toVar();S.addAssign($),C.addAssign(K.mul($))}B(S.greaterThan(.001),()=>{_.assign(1),y.assign(C.div(S))})}),B(_.greaterThan(.5),()=>{d.assign(y)}).Else(()=>{Cl(t,r,i,n,u,d,l)})}else Cl(t,r,i,n,u,d,l);return 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Ko=(e,t)=>e(t),kp=["depthTexture","shadowCoord","shadow","depthLayer","bd3D","dp"];function Id(e,t){return a=>{let r=(function(n){let l=n,o={};if(l==null)return o;for(let u of kp){let d=l[u];d!==void 0&&(o[u]=d)}return o})(a),s=Ko(e,r),i=Ko(t,r);return U(()=>{let n=c(1).toVar();return B(Ld.greaterThan(.5),()=>{n.assign(s)}).Else(()=>{n.assign(i)}),n})()}}var Rl=Id(Mp,Cp),zl=Id(Rp,Qm),An=new kt,Ap=new gt,Pp=new ve,Ep=class{constructor(){this._gBuffer=null,this._maskTarget=null,this._resolveMaterial=null,this._resolveKey="",this._cameraWorld=L(new Ra),this._projInv=L(new Ra),this._lightRows=[];let e=new ke;e.name="SplineShadowMask.gbuffer",e.fragmentNode=P(na,cr.z),e.lights=!1,e.blending=Ft,e.needsUpdate=!0,this._gBufferMaterial=e}_ensureTarget(e,t,a,r){return e&&e.width===t&&e.height===a?{target:e,changed:!1}:(e?.dispose(),{target:r(),changed:!0})}_buildResolveMaterial(e){let t=new ke;t.name="SplineShadowMask.resolve";let a=re(this._gBuffer.depthTexture),r=re(this._gBuffer.texture),s=this._cameraWorld,i=this._projInv,n=this._gBuffer.width,l=this._gBuffer.height;this._lightRows=e.map(()=>({matrix:L(new Ra),bias:L(0),normalBias:L(0)}));let o=this._lightRows,u=U(()=>{let d=Ie(),m=J(d.mul(A(n,l))).add(A(.5,.5)).div(A(n,l)).toVar(),h=a.sample(m),f=pd(m,h,i).toVar(),p=r.sample(m).toVar(),_=s,y=_.mul(P(f,1)).xyz.toVar(),g=ae(_.mul(P(p.xyz,0)).xyz).toVar(),x=W.pcssHalton,v=mr(da.xy.add(x)).mul(6.28318530718).toVar(),V=[c(1).toVar(),c(1).toVar(),c(1).toVar(),c(1).toVar()];return e.forEach((T,z)=>{let b=o[z],M=y.add(g.mul(b.normalBias)),S=b.matrix.mul(P(M,1)).toVar(),C=S.xyz.div(S.w),R=w(C.x,c(1).sub(C.y),C.z).toVar(),k=R.z.add(b.bias).toVar(),E=R.x.greaterThanEqual(0).and(R.x.lessThanEqual(1)).and(R.y.greaterThanEqual(0)).and(R.y.lessThanEqual(1)).and(k.lessThanEqual(1));B(E,()=>{Cl(T.shadow.map.depthTexture,T.shadow,R.xy,k,v,V[z],g)})}),P(V[0],V[1],V[2],V[3])})();return 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this._frames>=3}update(e,t){this._frames=e>0&&!t?this._frames+1:0}},Ur=new kt,Dp=new ve,Up=class extends cd{static get type(){return"SMAANode"}constructor(e){super("vec4"),this.textureNode=e,this.updateBeforeType=qm.FRAME,this._renderTargetEdges=new Ee(1,1,{depthBuffer:!1,type:At}),this._renderTargetEdges.texture.name="SMAANode.edges",this._renderTargetWeights=new Ee(1,1,{depthBuffer:!1,type:At}),this._renderTargetWeights.texture.name="SMAANode.weights",this._renderTargetBlend=new Ee(1,1,{depthBuffer:!1,type:At}),this._renderTargetBlend.texture.name="SMAANode.blend";let t=this,a=new Image;a.crossOrigin="anonymous",a.src=fl("smaa-node-area.png"),a.onload=function(){t._areaTexture.needsUpdate=!0},this._areaTexture=new Lt,this._areaTexture.name="SMAANode.area",this._areaTexture.image=a,this._areaTexture.minFilter=Ve,this._areaTexture.generateMipmaps=!1,this._areaTexture.flipY=!1;let r=new Image;r.crossOrigin="anonymous",r.src=fl("smaa-node-search.png"),r.onload=function(){t._searchTexture.needsUpdate=!0},this._searchTexture=new Lt,this._searchTexture.name="SMAANode.search",this._searchTexture.image=r,this._searchTexture.magFilter=Oe,this._searchTexture.minFilter=Oe,this._searchTexture.generateMipmaps=!1,this._searchTexture.flipY=!1,this._invSize=L(new ve),this._areaTextureUniform=re(this._areaTexture),this._searchTextureUniform=re(this._searchTexture),this._edgesTextureUniform=re(this._renderTargetEdges.texture),this._weightsTextureUniform=re(this._renderTargetWeights.texture),this._materialEdges=new ke,this._materialEdges.name="SMAANode.edges",this._materialWeights=new ke,this._materialWeights.name="SMAANode.weights",this._materialBlend=new ke,this._materialBlend.name="SMAANode.blend",this._textureNode=Wm(this,this._renderTargetBlend.texture)}getTextureNode(){return this._textureNode}setSize(e,t){this._invSize.value.set(1/e,1/t),this._renderTargetEdges.setSize(e,t),this._renderTargetWeights.setSize(e,t),this._renderTargetBlend.setSize(e,t)}updateBefore(e){let{renderer:t}=e;Nn=oo.resetRendererState(t,Nn);let a=t.getDrawingBufferSize(Dp);this.setSize(a.width,a.height),t.setRenderTarget(this._renderTargetEdges),Ur.material=this._materialEdges,Ur.render(t),t.setRenderTarget(this._renderTargetWeights),Ur.material=this._materialWeights,Ur.render(t),t.setRenderTarget(this._renderTargetBlend),Ur.material=this._materialBlend,Ur.render(t),oo.restoreRendererState(t,Nn)}setup(e){let t=A(.00625,.0017857142857142857),a=1/7,r=this.textureNode.uvNode||Ie(),s=U(()=>{let y=P(r.xy,r.xy).add(P(this._invSize.xy,this._invSize.xy).mul(P(-1,0,0,-1))),g=P(r.xy,r.xy).add(P(this._invSize.xy,this._invSize.xy).mul(P(1,0,0,1))),x=P(r.xy,r.xy).add(P(this._invSize.xy,this._invSize.xy).mul(P(-2,0,0,-2)));return mt("vec4","vOffset0").assign(y),mt("vec4","vOffset1").assign(g),mt("vec4","vOffset2").assign(x),_n}),i=U(()=>{let y=mt("vec4","vOffset0"),g=mt("vec4","vOffset1"),x=mt("vec4","vOffset2"),v=A(.1,.1),V=P().toVar(),T=this.textureNode.sample(r).rgb.toVar(),z=this.textureNode.sample(y.xy).rgb.toVar(),b=de(T.sub(z));V.x=Q(b.r,b.g,b.b);let M=this.textureNode.sample(y.zw).rgb.toVar();b=de(T.sub(M)),V.y=Q(b.r,b.g,b.b);let S=Ne(v,V.xy).toVar();q(S,A(1,1)).equal(0).discard();let C=this.textureNode.sample(g.xy).rgb.toVar();b=de(T.sub(C)),V.z=Q(b.r,b.g,b.b);let R=this.textureNode.sample(g.zw).rgb.toVar();b=de(T.sub(R)),V.w=Q(b.r,b.g,b.b);let k=Q(V.x,V.y,V.z,V.w).toVar(),E=this.textureNode.sample(x.xy).rgb.toVar();b=de(T.sub(E)),V.z=Q(b.r,b.g,b.b);let I=this.textureNode.sample(x.zw).rgb.toVar();return b=de(T.sub(I)),V.w=Q(b.r,b.g,b.b),k=Q(k,V.z,V.w),S.xy.mulAssign(A(Ne(c(.5).mul(k),V.xy))),P(S,0,0)}),n=U(([y,g,x,v])=>{let V=A(g).toVar();return 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We({start:N(0),end:N(8),type:"int",condition:"<"},()=>{V.assign(y.sample(T).rg),T.addAssign(A(2,0).mul(this._invSize)),B(T.x.greaterThanEqual(v).or(V.g.lessThanEqual(c(.8281)).or(V.r.notEqual(c(0)))),()=>{sa()})}),T.x.subAssign(c(.25).mul(this._invSize.x)),T.x.subAssign(this._invSize.x),T.x.subAssign(c(2).mul(this._invSize.x)),T.x.addAssign(this._invSize.x.mul(n(g,V,.5,.5))),T.x}),d=U(([y,g,x,v])=>{let V=A(1,0).toVar(),T=A(x).toVar();return We({start:N(0),end:N(8),type:"int",condition:"<"},()=>{V.assign(y.sample(T).rg),T.addAssign(A(0,-2).mul(this._invSize)),B(T.y.lessThanEqual(v).or(V.r.lessThanEqual(c(.8281)).or(V.g.notEqual(c(0)))),()=>{sa()})}),T.y.addAssign(c(.25).mul(this._invSize.y)),T.y.addAssign(this._invSize.y),T.y.addAssign(c(2).mul(this._invSize.y)),T.y.subAssign(this._invSize.y.mul(n(g,V.gr,0,.5))),T.y}),m=U(([y,g,x,v])=>{let V=A(1,0).toVar(),T=A(x).toVar();return We({start:N(0),end:N(8),type:"int",condition:"<"},()=>{V.assign(y.sample(T).rg),T.subAssign(A(0,-2).mul(this._invSize)),B(T.y.greaterThanEqual(v).or(V.r.lessThanEqual(c(.8281)).or(V.g.notEqual(c(0)))),()=>{sa()})}),T.y.subAssign(c(.25).mul(this._invSize.y)),T.y.subAssign(this._invSize.y),T.y.subAssign(c(2).mul(this._invSize.y)),T.y.addAssign(this._invSize.y.mul(n(g,V.gr,.5,.5))),T.y}),h=U(()=>{let y=r.xy.div(this._invSize),g=P(r.xy,r.xy).add(P(this._invSize.xy,this._invSize.xy).mul(P(-.25,-.125,1.25,-.125))).toVar(),x=P(r.xy,r.xy).add(P(this._invSize.xy,this._invSize.xy).mul(P(-.125,-.25,-.125,1.25))).toVar(),v=P(g.xz,x.yw).add(P(-2,2,-2,2).mul(P(this._invSize.xx,this._invSize.yy)).mul(c(8))).toVar();return mt("vec2","vPixcoord").assign(y),mt("vec4","vOffset0").assign(g),mt("vec4","vOffset1").assign(x),mt("vec4","vOffset2").assign(v),_n}),f=U(()=>{let y=mt("vec2","vPixcoord"),g=mt("vec4","vOffset0"),x=mt("vec4","vOffset1"),v=mt("vec4","vOffset2"),V=P(0,0,0,0).toVar(),T=P(0,0,0,0).toVar(),z=this._edgesTextureUniform.sample(r).rg.toVar();return B(z.g.greaterThan(c(0)),()=>{let b=A().toVar(),M=A().toVar();M.x=o(this._edgesTextureUniform,this._searchTextureUniform,g.xy,v.x),M.y=x.y,b.x=M.x;let S=this._edgesTextureUniform.sample(M).r.toVar(),C=A().toVar();C.x=u(this._edgesTextureUniform,this._searchTextureUniform,g.zw,v.y),C.y=x.y,b.y=C.x,b=b.div(this._invSize.x).sub(y.x);let R=Ea(de(b)),k=this._edgesTextureUniform.sample(C.add(A(1,0).mul(this._invSize))).r.toVar();V.r=k,V.rg=l(this._areaTextureUniform,R,S,k,c(T.y))}),B(z.r.greaterThan(c(0)),()=>{let b=A().toVar(),M=A().toVar();M.y=d(this._edgesTextureUniform,this._searchTextureUniform,x.xy,v.z),M.x=g.x,b.x=M.y;let S=this._edgesTextureUniform.sample(M).g.toVar(),C=A().toVar();C.y=m(this._edgesTextureUniform,this._searchTextureUniform,x.zw,v.w),C.x=g.x,b.y=C.y,b=b.div(this._invSize.y).sub(y.y);let R=Ea(de(b)),k=this._edgesTextureUniform.sample(C.add(A(0,1).mul(this._invSize))).g.toVar();V.ba=l(this._areaTextureUniform,R,S,k,c(T.x))}),V}),p=U(()=>{let y=P(r.xy,r.xy).add(P(this._invSize.xy,this._invSize.xy).mul(P(1,0,0,1)));return mt("vec4","vOffset1").assign(y),_n}),_=U(()=>{let y=mt("vec4","vOffset1"),g=P().toVar(),x=P().toVar();return x.xz=this._weightsTextureUniform.sample(r).xz,x.y=this._weightsTextureUniform.sample(y.zw).g,x.w=this._weightsTextureUniform.sample(y.xy).a,B(q(x,P(1)).lessThan(1e-5),()=>{g.assign(this.textureNode.sample(r))}).Else(()=>{let v=A().toVar();v.x=x.a.greaterThan(x.b).select(x.a,x.b.negate()),v.y=x.g.greaterThan(x.r).select(x.g,x.r.negate()),B(de(v.x).greaterThan(de(v.y)),()=>{v.y.assign(0)}).Else(()=>{v.x.assign(0)});let V=this.textureNode.sample(r).toVar(),T=A(r).toVar();T.addAssign(Xa(v).mul(this._invSize));let z=this.textureNode.sample(T).toVar(),b=de(v.x).greaterThan(de(v.y)).select(de(v.x),de(v.y)).toVar(),M=X(V,z,b);g.assign(M)}),g});return this._materialEdges.vertexNode=s().context(e.getSharedContext()),this._materialEdges.fragmentNode=i().context(e.getSharedContext()),this._materialEdges.needsUpdate=!0,this._materialWeights.vertexNode=h().context(e.getSharedContext()),this._materialWeights.fragmentNode=f().context(e.getSharedContext()),this._materialWeights.needsUpdate=!0,this._materialBlend.vertexNode=p().context(e.getSharedContext()),this._materialBlend.fragmentNode=_().context(e.getSharedContext()),this._materialBlend.needsUpdate=!0,this._textureNode}dispose(){this._renderTargetEdges.dispose(),this._renderTargetWeights.dispose(),this._renderTargetBlend.dispose(),this._areaTexture.dispose(),this._searchTexture.dispose(),this._materialEdges.dispose(),this._materialWeights.dispose(),this._materialBlend.dispose()}_getAreaTexture(){return""}_getSearchTexture(){return""}},Bn=new ve,Qo=new gt,Op=class{constructor(){this._rt=null,this._texNode=null,this._smaaNode=null,this._material=null,this._quad=null,this._depthTexNode=null,this._seedMaterial=null,this._seedQuad=null}_ensureTarget(e,t,a){if(this._rt===null||this._rt.width!==e||this._rt.height!==t){this._rt?.dispose();let s=new Ee(e,t,{depthBuffer:!0,stencilBuffer:!1,samples:0});s.texture.name="SplineHelperOverlay.color",this._rt=s}if(this._texNode===null){this._texNode=re(this._rt.texture),this._smaaNode=(r=this._texNode,new Up(Em(r)));let s=new ke;s.name="SplineHelperOverlayComposite",s.fragmentNode=this._smaaNode,s.transparent=!0,s.blending=Zc,s.blendEquation=Yc,s.blendSrc=vo,s.blendDst=bo,s.blendSrcAlpha=vo,s.blendDstAlpha=bo,s.depthTest=!1,s.depthWrite=!1,this._material=s,this._quad=new kt(s);let i=new ke;i.name="SplineHelperOverlayDepthSeed",this._depthTexNode=re(a),i.depthNode=this._depthTexNode.x,i.fragmentNode=P(0),i.colorWrite=!1,i.depthTest=!1,i.depthWrite=!0,this._seedMaterial=i,this._seedQuad=new kt(i)}else this._texNode.value!==this._rt.texture&&(this._texNode.value=this._rt.texture),this._depthTexNode.value!==a&&(this._depthTexNode.value=a);var r;return this._rt}render(e,t,a,r,s){e.getDrawingBufferSize(Bn);let i=this._ensureTarget(Bn.x,Bn.y,s),n=e.getRenderTarget(),l=e.autoClear;e.getClearColor(Qo);let o=e.getClearAlpha();if(e.autoClear=!1,e.setRenderTarget(i),e.setClearColor(0,0),e.clear(!0,!0,!1),this._seedQuad.render(e),t&&e.render(t,r),e.clear(!1,!0,!1),a&&e.render(a,r),e.setRenderTarget(n),e.setClearColor(Qo,o),Nm()){let u=e.toneMapping,d=e.outputColorSpace;

3e.toneMapping=Fi,e.outputColorSpace=Jc.workingColorSpace,this._quad.render(e),e.toneMapping=u,e.outputColorSpace=d}else this._quad.render(e);e.autoClear=l}dispose(){this._rt?.dispose(),this._rt=null,this._smaaNode?.dispose(),this._material?.dispose(),this._seedMaterial?.dispose()}},Zo=new WeakMap,Fn=new Set,Ln=0,Yo=new WeakMap,ui=new Set,ys=0;function Jo(e){let t=e.parent?.selectedTexture;return t&&t.isTexture===!0?t:null}function di(e){let t=e.src.array,a=e.attr.array;for(let r=0,s=Math.min(t.length,a.length);r<s;r++)a[r]=t[r];e.attr.needsUpdate=!0}var eu=new WeakMap;function Ud(e,t,a,r){let s=e.num(0),i=e.num(1),n=e.num(.5),l=e.num(2),o=e.num(1e-6),u=d=>e.sub(i,d);switch(t){case 0:return a;case 1:return e.min(e.add(a,r),i);case 3:return e.mul(e.add(a,r),n);case 4:{let d=e.max(u(e.div(u(a),e.max(r,o))),s);return e.mix(r,d,e.step(o,r))}case 5:{let d=e.min(e.div(a,e.max(u(r),o)),i);return e.mix(d,r,e.step(i,r))}case 6:return e.min(a,r);case 7:return e.abs(e.sub(a,r));case 8:return e.sub(e.add(a,r),e.mul(l,e.mul(a,r)));case 9:return e.max(a,r);case 10:return e.mul(a,r);case 11:{let d=e.min(e.div(a,e.max(r,o)),i);return e.mix(i,d,e.step(o,r))}case 12:return u(e.abs(e.sub(u(a),r)));case 14:{let d=e.mul(l,e.mul(a,r)),m=u(e.mul(l,e.mul(u(a),u(r))));return e.mix(d,m,e.step(n,a))}case 15:{let d=e.min(e.div(e.mul(a,a),e.max(u(r),o)),i);return e.mix(d,r,e.step(i,r))}case 16:return u(e.mul(u(a),u(r)));case 17:{let d=e.mul(l,r),m=e.add(e.mul(a,d),e.mul(e.mul(a,a),u(d))),h=e.add(e.mul(e.sqrt(e.max(a,s)),e.sub(d,i)),e.mul(e.mul(l,a),u(r)));return e.mix(m,h,e.step(n,r))}case 18:return e.max(e.sub(e.add(a,r),i),s);default:return r}}var Od={num:e=>c(e),add:(e,t)=>e.add(t),sub:(e,t)=>e.sub(t),mul:(e,t)=>e.mul(t),div:(e,t)=>e.div(t),min:(e,t)=>xe(e,t),max:(e,t)=>Q(e,t),abs:e=>de(e),sqrt:e=>Ea(e),step:(e,t)=>Ne(e,t),mix:(e,t,a)=>X(e,t,a)},Gp=Od;function _r(e,t,a,r,s){if(a===0)return e;if(a===2)return X(e,t,xe(s,r));let i=Ud(Od,a,e,t);return X(e,i,r)}function In(e,t,a,r){if(a===0)return e;if(a===2)return Q(e,xe(t,r));let s=Ud(Gp,a,e,t);return X(e,s,r)}var Dn=null;function Un(){return Dn===null&&(Dn=Hs({output:Pm,velocity:ul})),Dn}var Gd=U(e=>{let t=e.lightDistance,a=e.cutoffDistance,r=e.decayExponent,s=a.greaterThan(0).and(r.greaterThan(0));return Se(s,t.div(a).oneMinus().clamp().pow(r),c(1))}),tu=class extends zm{static get type(){return"SplinePointLightNode"}setupDirect(e){let t=this.getLightVector(e),a=t.normalize(),r=Gd({lightDistance:t.length(),cutoffDistance:this.cutoffDistanceNode,decayExponent:this.decayExponentNode});return{lightColor:this.colorNode.mul(r),lightDirection:a}}},au=class extends km{static get type(){return"SplineSpotLightNode"}setupDirect(e){let t,a,r=this.light,s=this.getLightVector(e),i=s.normalize(),n=i.dot(Am(r)),l=this.getSpotAttenuation(e,n),o=Gd({lightDistance:s.length(),cutoffDistance:this.cutoffDistanceNode,decayExponent:this.decayExponentNode}),u=this.colorNode.mul(l).mul(o),d=r;if(d.colorNode?(a=this.getLightCoord(e),t=d.colorNode(a)):d.map&&(a=this.getLightCoord(e),t=re(d.map,a.xy).onRenderUpdate(()=>d.map)),t&&a){let m=a.mul(2).sub(1).abs().lessThan(1).all();u=Se(m,u.mul(t),u)}return{lightColor:u,lightDirection:i}}},qd=null,qp=new ne,xs=new ne,Wp=new gt,Hp=new gt,jp=new gt,ru=new ne,su=new ne,$p=new ve,Kp=new ne(1,0,0),Xp=new ne(0,1,0),Qp=new ne(0,0,1),er=new ne,yr=new ne,hi=new ne,xr=new ne,On=new Ra,iu=new ne,mi=new ne,Or=new Xc,Wa=new at,vs=new at,Zp=new ve,Gr=new ve,Ha=new ne,ci=new ne,bs=new ne,Gn=new ne,qr=new ne,ja=[],Wd=!1,Hd=!1,jd=!1,kl="full",$d="g16",Kd=!1,Al=!1,Pl=!1,Rr="default",Xd=!1,Qd=!0,Zd=!0,Yd=!0,Jd=!0,eh=!0,th=Oc;try{let e=new URLSearchParams(window.location.search),t=e.get("instancing");if(t!==null)if(t==="off"||t==="0"||t==="false"||t==="no")eh=!1;else{let s=Number.parseInt(t,10);Number.isFinite(s)&&s>1&&(th=s)}Wd=e.get("dbgao")==="0",Hd=e.get("dbgshadow")==="0",jd=e.get("dbgfp16")==="1",Kd=e.get("dbgsky")==="0",Al=e.get("dbgssr")==="0",Pl=e.get("dbgibl")==="0";let a=e.get("pbrcolor");a==="0"?Rr="off":(a==="linear"||a==="aces"||a==="agx"||a==="neutral")&&(Rr=a),Xd=e.get("dbgplanar")==="0",Qd=e.get("dbgplanarpyr")!=="0",Zd=e.get("dbgssrpyr")!=="0",Yd=e.get("dbgssrhalf")!=="0",Jd=e.get("dbgssrresolve")!=="0";let r=e.get("dbgprefilter");r==="0"?kl="off":r==="base"?kl="base":r==="k4"&&($d="k4")}catch{}function Yp(){return typeof requestAnimationFrame!="function"||typeof document<"u"&&document.hidden===!0?Promise.resolve():new Promise(e=>{let t=!1,a=()=>{t||(t=!0,clearTimeout(r),e())},r=setTimeout(a,250);requestAnimationFrame(a)})}var El=class extends cm{constructor(e={}){var t;super({canvas:e.canvas,alpha:e.alpha??!0,antialias:e.antialias??!1,forceWebGL:e.forceWebGL??!1,powerPreference:e.powerPreference,trackTimestamp:e.trackTimestamp??globalThis.__SPLINE_TRACK_TIMESTAMP__===!0,stencil:!1,requiredLimits:e.requiredLimits,canvasColorSpace:"display-p3",outputBufferType:jd?At:Bi,asyncCompilation:e.asyncCompilation===!0||e.asyncCompilation==="load"}

3),this.viewportWidth=1,this.viewportHeight=1,this.resolution=new ve,this.dummyCamera=new Sn,this.sceneTransitionDuration=0,this.sceneTransitionTimeRemaining=-1,this.manageShadowUpdates=!1,this.forceShadowUpdates=!1,this._shadowMapMissingAtSync=!1,this._shadowSyncPromotions=-1,this._lightShadowStateDirty=!1,this._lightShadowSignatures=new WeakMap,this._shadowMapIds=new WeakMap,this._shadowMapIdSeq=0,this.temporalAAEnabled=!0,this.hdrChainActive=!1,this.isWebGPUSplineRenderer=!0,this.shadowFilterHook=zp,this._gaugeSnapshot="",this._gaugeChangedAt=0,this._gaugeStallWarned=!1,this._skipStalls=new Ip,this._stallWarned=!1,this._asyncCompilationMode=!1,this._asyncLoadWarmupsInFlight=0,this.sceneBundlesEnabled=!1,this.sceneBundlesForceRerecord=!1,this._appliedWidth=-1,this._appliedHeight=-1,this._appliedRatio=-1,this._bundleStates=new WeakMap,this._skySystem=null,this._skyFeatureWarned=!1,this.skyAnimationAllowed=!1,this.skyEnvironmentNeeded=!0,this._bundledPages=new Set,this._bundleValveArmed=!1,this._destroyedSubmitErrors=0,this._destroyedSubmitLastFrame=-10,this._warmupTarget=null,this.renderStarted=!1,this._warmupInFlight=!1,this._warmupPendingTarget=null,this._warmupPendingMRT=null,this._grabWarmupTarget=null,this._warnedHelperIncompat=new WeakSet,this._maskLights=[],this._maskBlocked=!1,this.suppressShadowMask=!1,this._grabTargetEpoch=0,this._retiredGrabTargets=[],this._retiredGpuBuffers=[],this._bundleEpochDirty=!1,this._encodeMaterials={},this._transmissionChain=[],this._reflectionColorChain=[],this._reflectionDepthChain=[],this._reflectionPassesKey="",this._reflectionResolveMarchKey="",this._planarChain=[],this._frameSerial=0,this._asyncCompilationMode=e.asyncCompilation??!1,this._updateCompilationBurst(),Ao&&(function(){if(!Eo){if(Eo=!0,xl=()=>W.frameIndex.value,typeof GPUBuffer<"u"){let a=GPUBuffer.prototype.destroy;GPUBuffer.prototype.destroy=function(){return Bo("buffer",this.label,this.size),a.call(this)}}if(typeof GPUTexture<"u"){let a=GPUTexture.prototype.destroy;GPUTexture.prototype.destroy=function(){return Bo("texture",this.label,`${this.width}x${this.height}`),a.call(this)}}console.info("[spline/webgpu] ?dbgdestroys=1 â GPU resource destroy logging armed; reproduce the error and read the [dbgdestroys] dumps")}})(),this.pipeline=new Ed(this),this.library.addLight(vp,gl),this.shadowMap.enabled=!0,this.shadowMap.type=Fc,t=this.backend?.isWebGPUBackend===!0,tn=t,this._deferGpuBufferDestruction(),this.outputColorSpace=ml,this.toneMapping=Fi,(function(a){let r=a.library;r.addLight(tu,Lc),r.addLight(au,Ic),r.addLight(pm,Dc),r.lightNodes.delete(go),r.lightNodes.delete(_o),r.addLight(tu,go),r.addLight(au,_o)})(this),this.sceneBundlesEnabled=e.sceneBundles===!0||e.sceneBundles==="rerecord",this.sceneBundlesForceRerecord=e.sceneBundles==="rerecord",this.auxiliary=e.auxiliary===!0,this.domElement.removeAttribute?.("data-engine")}get lastFrameIncomplete(){return!!(this._warmupInFlight||this._compilationHasWork&&!this._gaugesStalled)||(this._skippedAsyncDraws??0)!==0&&!this._skipStalls.stalled}get _gaugesStalled(){return this._gaugeChangedAt>0&&performance.now()-this._gaugeChangedAt>El._GAUGE_STALL_MS}_trackGaugeStall(){let e=this._asyncCompilationGauges,t=e!==void 0&&(e.queued>0||e.pipelines>0),a=t?`${e.queued}/${e.pipelines}`:"";return t?a!==this._gaugeSnapshot?(this._gaugeSnapshot=a,void(this._gaugeChangedAt=performance.now())):void(this._gaugesStalled&&!this._gaugeStallWarned&&(this._gaugeStallWarned=!0,console.warn(`[spline/webgpu] async pipeline driver stalled (${a} in flight, no movement for ${El._GAUGE_STALL_MS}ms) â treating frames as final so screenshots, thumbnails and the on-demand render loop keep working.`))):(this._gaugeSnapshot="",void(this._gaugeChangedAt=0))}_trackStalledSkips(e){let t=this._compilationHasWork&&!this._gaugesStalled;this._skipStalls.update(e,t),ge.stalledSkipFrames=this._skipStalls.frames,this._skipStalls.stalled&&!this._stallWarned&&(this._stallWarned=!0,console.warn(`[spline/webgpu] ${e} draw(s) are permanently skipped â their render pipelines never became ready (look for "pipeline creation failed" above). Those objects will not appear; the frame is treated as final so screenshots, thumbnails and the on-demand render loop keep working.`))}get _asyncCompilationGauges(){return this.info.asyncCompilation}get _compilationHasWork(){let e=this._asyncCompilationGauges;return e!==void 0&&(e.queued>0||e.pipelines>0)}get asyncCompilationEnabled(){return this._asyncCompilation===!0}get taaHistory(){return this._taaHistory||(this._taaHistory=Dd()),this._taaHistory}

3async init(){await super.init();let e=this.backend.gl;if(e&&"drawingBufferColorSpace"in e)try{e.drawingBufferColorSpace="display-p3"}catch(t){console.warn(t)}return this.backend.device?.lost?.then(t=>{ge.deviceLost=`${t?.reason??"unknown"}: ${t?.message??""}`.trim()}),this}setSize(e,t,a=!0){if(this._appliedWidth!==e||this._appliedHeight!==t||this._appliedRatio!==this.getPixelRatio()){this._appliedWidth=e,this._appliedHeight=t,this._appliedRatio=this.getPixelRatio();let r=this.viewportWidth!==e||this.viewportHeight!==t;this.viewportWidth=e,this.viewportHeight=t,super.setSize(e,t,a),r&&this.pipeline.resize(e,t,a)}return this}setPixelRatio(e=1){return this.getPixelRatio()!==e&&super.setPixelRatio(e),this}get hdTransmission(){return W.transmissionLod.value===1}set hdTransmission(e){W.transmissionLod.value=e===!0?1:2}renderScenePass(e,t){this.render(e,t)}_renderObjects(e,t,a,r,s=null){let i=this,n=s===null&&a.overrideMaterial===null;for(let l=0,o=e.length;l<o;l++){let{object:u,geometry:d,material:m,group:h,clippingContext:f}=e[l];n&&Gh(m)?this._renderWithDepthPrepass(u,a,t,d,m,h,r,f):i._currentRenderObjectFunction(u,a,t,d,m,h,r,f,s)}}_renderWithDepthPrepass(e,t,a,r,s,i,n,l){let o=this,u=(m,h)=>o._handleObjectFunction(e,m,t,a,n,i,l,h),d=i;e.onBeforeRender(this,t,a,r,s,d),s.side===is&&s.forceSinglePass===!1?(u(s.getDepthPrepassTwin(cl),null),s.side=cl,u(s,"backSide"),u(s.getDepthPrepassTwin(pl),null),s.side=pl,u

3(s,null),s.side=is,ge.depthPrepassDraws+=2):(u(s.getDepthPrepassTwin(s.side),null),u(s,null),ge.depthPrepassDraws++),e.onAfterRender(this,t,a,r,s,d)}get skySystem(){return this._skySystem}get skyAnimationActive(){return this._skySystem?.animationActive===!0}*_liveBundledPages(){for(let e of this._bundledPages){let t=e.deref();t===void 0?this._bundledPages.delete(e):yield t}}_armBundleValve(){if(this._bundleValveArmed)return;let e=this.backend.device;typeof e?.addEventListener=="function"&&(this._bundleValveArmed=!0,e.addEventListener("uncapturederror",t=>{if(!this.sceneBundlesEnabled||!(t?.error?.message??"").toLowerCase().includes("destroyed"))return;let a=W.frameIndex.value,r=(a-this._destroyedSubmitLastFrame+16)%16;if(this._destroyedSubmitErrors=r<=2?this._destroyedSubmitErrors+1:1,this._destroyedSubmitLastFrame=a,!(this._destroyedSubmitErrors<4)){this.sceneBundlesEnabled=!1,ge.bundleDisabled=!0;for(let s of this._liveBundledPages()){let i=this._bundleStates.get(s);i&&(i.disabled=!0),s.isBundleGroup=!1}this._bundledPages.clear()}}))}_updateSceneBundle(e,t){if(this.backend.beginBundle===void 0)return;let a=this._bundleStates.get(e);if(a===void 0){let m={signature:-1,rebuilds:0,resourceRebuilds:0,checks:0,disabled:!1,camHash:0,prevCamHash:0,epoch:0,lastEpoch:0,bufferIds:new WeakMap,bufferIdSeq:0,watched:new WeakSet,onResourceDispose:()=>{m.epoch++}};a=m,this._bundleStates.set(e,a),this._bundledPages.add(new WeakRef(e)),this._armBundleValve()}let r=e;if(a.disabled)return;{let m=t.matrixWorld.elements,h=t.projectionMatrix.elements,f=-2128831035;for(let p=0;p<16;p++)f^=1e4*m[p]|0,f=Math.imul(f,16777619),f^=1e4*h[p]|0,f=Math.imul(f,16777619);a.camHash=f}let s=-2128831035,i=m=>{s^=0|m,s=Math.imul(s,16777619)};i(this._grabTargetEpoch),i(e.fog!==null?1:0);let n=a,l=m=>{let h=m;!h||typeof h.addEventListener!="function"||n.watched.has(h)||(n.watched.add(h),h.addEventListener("dispose",n.onResourceDispose))},o=m=>{if(!m)return 0;let h=n.bufferIds.get(m);return h===void 0&&(h=++n.bufferIdSeq,n.bufferIds.set(m,h)),h},u=m=>{l(m),i(m.id),i(m.version),i(m.transparent===!0?1:0),typeof m.assetsLoaded=="function"&&i(m.assetsLoaded()?1:0)},d=!1;if(e.traverse(m=>{let h=m;if(h.isMesh===!0||h.isLine===!0||h.isPoints===!0||h.isSprite===!0){let f=h;f.isDecalObject===!0&&typeof f.updateDecal=="function"&&f.updateDecal()&&(d=!0),h.frustumCulled&&(h.frustumCulled=!1),i(h.id),i(h.visible?1:0),i(h.layers.mask),i(h.renderOrder);let p=h.geometry;l(p),i(p.id),i(p.drawRange.start),i(p.drawRange.count===1/0?-1:p.drawRange.count),i(o(p.index)),i(o(p.attributes.position)),i(p.instanceCount??-1),i(h.count===void 0?-1:h.count);let _=h.material;if(Array.isArray(_))for(let y of _)u(y);else _&&u(_)}else m.isLight===!0?(i(m.id),i(m.visible?1:0),i(m.castShadow?1:0)):(i(m.id),i(m.visible?1:0))}),i(a.epoch),a.checks++,ge.bundleChecks=a.checks,a.checks%600==0){let m=this._bundleDebug;ge.bundleIncompleteRecords=m?.incompleteRecords??0,ge.bundleRecords=m?.records??0,ge.bundleReplays=m?.replays??0,a.prevCamHash=a.camHash}if(r.isBundleGroup!==!0)return r.isBundleGroup=!0,r.static=!0,typeof r.version!="number"&&(r.version=0),void(a.signature=s);if(this.sceneBundlesForceRerecord)return r.version=(r.version??0)+1,void(a.signature=s);if(s!==a.signature){if(a.signature=s,r.version=(r.version??0)+1,a.epoch!==a.lastEpoch)return a.lastEpoch=a.epoch,a.resourceRebuilds++,void(ge.bundleResourceRebuilds=a.resourceRebuilds);if(d)return a.lastEpoch=a.epoch,a.resourceRebuilds++,void(ge.bundleResourceRebuilds=a.resourceRebuilds);a.rebuilds++,ge.bundleRebuilds=a.rebuilds,a.checks>30&&a.rebuilds/a.checks>.1&&(a.disabled=!0,r.isBundleGroup=!1,ge.bundleDisabled=!0)}}_ensureWarmupTarget(){if(this._warmupTarget===null){let e=new Ee(2,2,{count:2});e.textures[0].name="output",e.textures[0].type=Bi,e.textures[1].name="velocity",e.textures[1].type=At;let t=new Cr(2,2);t.isRenderTargetTexture=!0,e.depthTexture=t,this._warmupTarget=e}return this._warmupTarget}get warmupInFlight(){return this._warmupInFlight}setRenderTarget(e,t=0,a=0){this._warmupInFlight?this._warmupPendingTarget=[e,t,a]:super.setRenderTarget(e,t,a)}setMRT(e){return this._warmupInFlight?(this._warmupPendingMRT=[e],this):(super.setMRT(e),this)}async compileSceneAsync(e,t){if(!t)return;{let s=e instanceof li?e.activePage:e;$o(yo.isSoft(s?.data?.shadow)),s&&Vo(s)}if(this._asyncCompilationMode!==!1)return this._asyncCompilationMode==="load"&&(this._setThreeAsyncCompilation(!0),this._updateCompilationBurst()),this._compileSceneAsyncBackgroun

3d(e,t);if(this.renderStarted||this._warmupInFlight)return;let a=this.getRenderTarget(),r=this.getMRT();this._warmupInFlight=!0,this._warmupPendingTarget=null,this._warmupPendingMRT=null,this._updateCompilationBurst();try{this.normalizeCameraCoordinateSystem(t),this.temporalAAEnabled&&(super.setRenderTarget(this._ensureWarmupTarget()),super.setMRT(Un())),await this.compileAsync(e,t)}catch(s){console.warn("[spline/webgpu] pipeline warm-up failed:",s)}finally{let s=this._warmupPendingTarget,i=this._warmupPendingMRT;this._warmupInFlight=!1,this._warmupPendingTarget=null,this._warmupPendingMRT=null,this._updateCompilationBurst(),s!==null?super.setRenderTarget(s[0],s[1],s[2]):super.setRenderTarget(a),i!==null?super.setMRT(i[0]):super.setMRT(r)}}async _compileSceneAsyncBackground(e,t){this._asyncLoadWarmupsInFlight++,this._updateCompilationBurst();try{await this.init(),this.normalizeCameraCoordinateSystem(t);let a,r=this.getRenderTarget(),s=this.getMRT();try{this.temporalAAEnabled&&(super.setRenderTarget(this._ensureWarmupTarget()),super.setMRT(Un())),a=this.compileAsync(e,t)}finally{super.setRenderTarget(r),super.setMRT(s)}let i=this._warmupGrabContext(e,t);await a,await i}catch(a){console.warn("[spline/webgpu] pipeline warm-up failed:",a)}finally{this._asyncLoadWarmupsInFlight--,this._updateCompilationBurst(),this._maybeCloseAsyncLoadWindow()}}_disposeWarmupTargets(){this._warmupTarget?.depthTexture?.dispose(),this._warmupTarget?.dispose(),this._warmupTarget=null,this._grabWarmupTarget?.depthTexture?.dispose(),this._grabWarmupTarget?.dispose(),this._grabWarmupTarget=null}_warmupGrabContext(e,t){let a=e instanceof li?e:e.scene;if(a.needsTransmission?.()!==!0&&a.needsReflection?.()!==!0)return null;if(this._grabWarmupTarget===null){let i=new Ee(2,2);i.texture.type=Bi;let n=new Cr(2,2);n.isRenderTargetTexture=!0,i.depthTexture=n,this._grabWarmupTarget=i}let r=this.getRenderTarget(),s=this.getMRT();try{return super.setRenderTarget(this._grabWarmupTarget),super.setMRT(null),this.compileAsync(e,t)}finally{super.setRenderTarget(r),super.setMRT(s)}}_setThreeAsyncCompilation(e){this.setAsyncCompilation(e)}_updateCompilationBurst(){let e=this._warmupInFlight||this._asyncLoadWarmupsInFlight>0||this._asyncCompilationMode==="load"&&this.asyncCompilationEnabled;this.setCompilationBurst(e),ge.compilationBurst=e}_maybeCloseAsyncLoadWindow(){this._asyncCompilationMode==="load"&&(!this.asyncCompilationEnabled||this._asyncLoadWarmupsInFlight>0||this._frameSerial!==0&&((this._skippedAsyncDraws??0)>0&&!this._skipStalls.stalled||this._compilationHasWork||(this._setThreeAsyncCompilation(!1),this._updateCompilationBurst())))}normalizeCameraCoordinateSystem(e){let t=e;(t.coordinateSystem!==this.coordinateSystem||t.perspCamera!==void 0&&t.perspCamera.coordinateSystem!==this.coordinateSystem||t.orthoCamera!==void 0&&t.orthoCamera.coordinateSystem!==this.coordinateSystem)&&(t.coordinateSystem=this.coordinateSystem,t.perspCamera!==void 0&&(t.perspCamera.coordinateSystem=this.coordinateSystem),t.orthoCamera!==void 0&&(t.orthoCamera.coordinateSystem=this.coordinateSystem),e.updateProjectionMatrix?.())}_prepareHelpers(e,t,a){e.traverse(r=>{let s=r;if(r.isPoints===!0){let l=(function(o){if(Array.isArray(o.material)||o.parent===null||o.geometry.getAttribute("position")===void 0)return null;let u=o.material;return u.isNodeMaterial===!0?null:u.isPointsMaterial===!0?(function(d,m){if(m.size<=1)return null;let h=Yo.get(d);return h&&(h.epoch!==ys||h.srcMaterial!==m||h.geometry!==d.geometry||h.position.src!==d.geometry.getAttribute("position")||h.map!==m.map||h.selectedMap!==Jo(d))&&(h.sprite.removeFromParent(),h.material.dispose(),h=void 0),h||(h=(function(f,p){let _=f.geometry,y=_.getAttribute("position"),g=_.getAttribute("aSelection"),x=_.getAttribute("aVisibility"),v=p.map,V=Jo(f),T=new Vn(y.array,3);T.setUsage(Li);let z={src:y,attr:T,version:y.version},b=[],M=H=>{let K=new Vn(new Float32Array(H.count),1);K.setUsage(Li);let O={src:H,attr:K,version:H.version};return di(O),b.push(O),O},S=g?M(g):null,C=x?M(x):null,R=new ol;R.name=`SplinePointsTwin(${p.name||p.type})`,R.positionNode=wr(z.attr,"vec3"),R.size=p.size,R.sizeAttenuation=p.sizeAttenuation,R.transparent=p.transparent,R.depthTest=p.depthTest,R.depthWrite=p.depthWrite,R.blending=p.blending,R.fog=!1;let k=S?wr(S.attr,"float"):null,E=C?wr(C.attr,"float"):null;R.colorNode=U(()=>{E!==null?pn(E.lessThan(.5)):k!==null&&pn(k.greaterThan(.5));let H=v!==null?re(v,Ie()):P(1);return(k!==null&&v!==null&&V!==null?X(H,re(V,Ie()),k):H).mul(P(fm,1))})();let I=new xo(R);I.name=`SplinePointsTwin(${f.name||f.type})`,I.frustumCulled=!1,I.raycast=()=>{};let D={sprite:I,material:R,srcMaterial:p,geometry:_,map:v,selectedMap:V,position:z,mirrors:b,epoch:ys};return ui.add(new WeakRef(D)),D})(d,m),Yo.set(d,h)),h.sprite.parent!==d.parent&&d.parent.add(h.sprite),(function(f,p){let{sprite:_,position:y,srcMaterial:g}

3=p;y.version!==y.src.version&&(p.position.attr.needsUpdate=!0,y.version=y.src.version);for(let v of p.mirrors)v.version!==v.src.version&&(di(v),v.version=v.src.version);let x=Math.max(0,Math.min(p.geometry.drawRange.count,y.src.count));_.count=x,p.material.size=g.size,p.material.opacity=g.opacity,p.material.color.copy(g.color),_.layers.mask=f.layers.mask,_.renderOrder=f.renderOrder})(d,h),h.sprite})(o,u):(function(d,m){if(m.isShaderMaterial!==!0)return!1;let h=m.uniforms,f=h?.pointSize?.value,p=h?.color?.value;return typeof f=="number"&&f>1&&Array.isArray(p)&&p.length>=3&&d.geometry.getAttribute("hover")!==void 0&&d.geometry.getAttribute("selected")!==void 0})(o,u)?(function(d,m){let h=eu.get(d);return h&&(h.epoch!==ys||h.srcMaterial!==m||h.geometry!==d.geometry||!(function(f,p){let _=[[f.position,"position"],[f.hover,"hover"],[f.selected,"selected"]];for(let[y,g]of _){let x=p.getAttribute(g);if(x===void 0)return!1;if(y.src!==x){if(x.count!==y.attr.count)return!1;y.src=x,y.version=-1}}return!0})(h,d.geometry))&&(h.sprite.removeFromParent(),h.material.dispose(),h=void 0),h||(h=(function(f,p){let _=f.geometry,y=p.uniforms,g=(k,E)=>{let I=new Vn(new Float32Array(k.count*E),E);I.setUsage(Li);let D={src:k,attr:I,version:k.version};return di(D),D},x=g(_.getAttribute("position"),3),v=g(_.getAttribute("hover"),1),V=g(_.getAttribute("selected"),1),T=L(y.pointSize.value),z=L(new gt().fromArray(y.color.value)),b=new ol;b.name=`SplinePointsTwin(${p.name||p.type})`,b.positionNode=wr(x.attr,"vec3");let M=wr(v.attr,"float"),S=wr(V.attr,"float");b.sizeNode=T.add(M.mul(4)),b.sizeAttenuation=!1,b.transparent=p.transparent,b.depthTest=p.depthTest,b.depthWrite=p.depthWrite,b.blending=p.blending,b.fog=!1,b.colorNode=U(()=>{let k=we(Ie().mul(2).sub(1)).toVar();pn(k.greaterThan(1));let E=Se(S.equal(1),w(.22,.9,.7),z.add(M.mul(.25)));return P(Se(k.greaterThan(.75),w(1),E),1)})();let C=new xo(b);C.name=`SplinePointsTwin(${f.name||f.type})`,C.frustumCulled=!1,C.raycast=()=>{};let R={sprite:C,material:b,srcMaterial:p,geometry:_,pointSize:T,color:z,position:x,hover:v,selected:V,epoch:ys};return ui.add(new WeakRef(R)),R})(d,m),eu.set(d,h)),h.sprite.parent!==d.parent&&d.parent.add(h.sprite),(function(f,p){for(let g of[p.position,p.hover,p.selected])g.version!==g.src.version&&(di(g),g.version=g.src.version);let _=p.srcMaterial.uniforms;p.pointSize.value=_.pointSize.value,p.color.value.fromArray(_.color.value);let y=Math.max(0,Math.min(p.geometry.drawRange.count,p.position.src.count));p.sprite.count=y,p.material.opacity=p.srcMaterial.opacity,p.sprite.layers.mask=f.layers.mask,p.sprite.renderOrder=f.renderOrder})(d,h),h.sprite})(o,u):null})(r);if(l!==null)return l.visible=s.visible,void(s.visible&&(t.push(s),s.visible=!1))}let i=!1,n=Array.isArray(s.material)?s.material:s.material?[s.material]:[];for(let l of n){let o=l;if(o.isShaderMaterial===!0&&o.isNodeMaterial!==!0){i=!0,`${o.type}`;break}}if(i&&!Array.isArray(s.material)){let l=(function(o){return o.isLineMaterial===!0?(function(u){let d=Zo.get(u);if(!d||d.epoch!==Ln){let _=new gm;_.name=`SplineHelperTwin(${u.name||u.type})`,_.worldUnits=!1,d={twin:_,epoch:Ln},Zo.set(u,d),Fn.add(new WeakRef(_))}let m=d.twin,h=u;m.color.copy(h.color),m.linewidth=h.linewidth,m.opacity=h.opacity,m.transparent=h.transparent,m.depthTest=h.depthTest,m.depthWrite=h.depthWrite,m.side=h.side;let f=h.dashed===!0;if(m.dashed!==f&&(m.dashed=f,m.needsUpdate=!0),f){let _=m;_.dashScale=h.dashScale??1,_.dashSize=h.dashSize??1,_.gapSize=h.gapSize??1}let p=h.vertexColors===!0||h.vertexColors===2;return m.vertexColors!==p&&(m.vertexColors=p,m.needsUpdate=!0),m})(o):null})(s.material);if(l)return a.push({object:s,original:s.material}),void(s.material=l)}!i&&s.geometry?.isInstancedBufferGeometry===!0&&!Number.isFinite(s.geometry.instanceCount??0)&&(i=!0),i&&s.visible&&(this._warnedHelperIncompat.has(r)||this._warnedHelperIncompat.add(r),t.push(s),s.visible=!1)})}renderHelperOverlay(e,t,a,r){let s=[],i=[];if(e&&this._prepareHelpers(e,s,i),t&&this._prepareHelpers(t,s,i),r)this._helperOverlay??(this._helperOverlay=new Op),this._helperOverlay.render(this,e,t,a,r),ge.helperOverlayMode="smaa";else{let n=this.autoClear;this.autoClear=!1,e&&this.render(e,a),t&&(this.clearDepth(),this.render(t,a)),this.autoClear=n,ge.helperOverlayMode="direct"}for(let n of i)n.object.material=n.original;for(let n of s)n.visible=!0}

vendor: 4,888 bytes, line 3

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5d=Math.max(d,i),m=Math.min(m,n),m-d>=1&&(r.near!==d||r.far!==m)&&(r.near=d,r.far=m,r.updateProjectionMatrix())}_gatherShadowBounds(e){let t=0;return e.traverseVisible(a=>{let r=a;if(r.castShadow!==!0&&r.receiveShadow!==!0)return;if(r.isHairSystem===!0){let o=r.shadowBoundsRadius??0;if(o>0){r.getShadowBoundsCenter?r.getShadowBoundsCenter(Ha):Ha.setFromMatrixPosition(r.matrixWorld);let u=4*t;ja[u]=Ha.x,ja[u+1]=Ha.y,ja[u+2]=Ha.z,ja[u+3]=o,t++}return}if(r.isMesh!==!0||!r.geometry||r.isInstanceGroup===!0)return;let s=r.geometry.boundingSphere;s===null&&(r.geometry.computeBoundingSphere(),s=r.geometry.boundingSphere);let i=r;if(i.isInstancedMesh===!0&&(i.boundingSphere===null&&i.computeBoundingSphere(),s=i.boundingSphere??s),!s||!Number.isFinite(s.radius)||s.radius<=0)return;Ha.copy(s.center).applyMatrix4(r.matrixWorld),ci.setFromMatrixScale(r.matrixWorld);let n=s.radius*Math.max(Math.abs(ci.x),Math.abs(ci.y),Math.abs(ci.z)),l=4*t;ja[l]=Ha.x,ja[l+1]=Ha.y,ja[l+2]=Ha.z,ja[l+3]=n,t++}),t}_syncLightState(e){let t=yo.isSoft(e.data.shadow);$o(t),ge.shadowTypeSoft=t,(function(m){switch(m){case"low":ur=8;break;case"high":ur=32;break;default:ur=16}})(e.data.shadow?.softShadowQuality),t&&Wo()&&(kn||(this.initTexture?.(bl()),kn=!0));let a=-1;ge.pcssLights=0,ge.pcssPyramidActive=0,this._maskLights.length=0,this._maskBlocked=!1,ge.nodeResurrections=this._nodes?._spResurrections??0;let r=!1,s=W.toonLightData.array,i=0,n=this.manageShadowUpdates,l=e.scene.shadowsDirty||this.forceShadowUpdates;this._shadowMapMissingAtSync=!1;let o=-2128831035,u=m=>{o^=0|m,o=Math.imul(o,16777619)};e.traverseVisible(m=>{let h=m;if(Wh(h)&&(e.scene.shadowsDirty=!0),n&&(h.isPointLight||h.isSpotLight||h.isDirectionalLight)&&h.shadow&&(h.shadow.autoUpdate=l,l&&h.castShadow===!0&&h.shadow.map==null&&(this._shadowMapMissingAtSync=!0)),Hd&&(h.isPointLight||h.isSpotLight||h.isDirectionalLight)&&h.castShadow&&(h.castShadow=!1),(h.isPointLight||h.isSpotLight||h.isDirectionalLight)&&(u(m.id),u(h.castShadow===!0?1:0),u(this._shadowMapId(h.shadow?.map))),h.isPointLight&&h.castShadow&&h.shadow&&((function(f){f.filterNode!==void 0&&f.filterNode!==null?f.filterNode!==zl&&ge.pcssForeignFilter++:(f.filterNode=zl,ge.pcssInstalled++)})(h.shadow),jo(h.shadow),ge.pcssLights++),(h.isSpotLight||h.isDirectionalLight)&&h.castShadow&&h.shadow){h.isDirectionalLight&&(a<0&&(a=this._gatherShadowBounds(e)),this._fitDirectionalShadowRange(h,ja,a)),(function(_){_.filterNode!==void 0&&_.filterNode!==null?_.filterNode!==Rl&&ge.pcssForeignFilter++:(Object.defineProperty(_,"penumbraSize",{get:()=>h.data?.penumbraSize??.5,configurable:!0}),_.filterNode=Rl,ge.pcssInstalled++)})(h.shadow);let f,p=!n||l||h.shadow.needsUpdate===!0;if(t&&Wo()&&(p?(function(_){let y=_;y.__spePcssPyramid&&(y.__spePcssPyramid.fresh=!1)})(h.shadow):Uo(h.shadow)||(function(_,y){let g=y,x=g.map?.depthTexture??null;if(x==null)return!1;let v=Do(y);if((function(M){let S=Do(M);if(S.slot>=0)return S.slot;for(let C=0;C<8;C++){let R=zn[C];if(R===null||R.deref()===void 0)return zn[C]=new WeakRef(M),S.slot=C,C}return-1})(y)<0)return!1;let V=Math.max(1,Math.round(g.mapSize?.x??2048)),T=8*v.slot,z=`${x.uuid}:${V}`;v.passKey!==z&&(v.toMid?.material?.dispose(),v.toSmall?.material?.dispose(),v.mid===null&&(v.mid=vl(64,64),v.mid.texture.name="SplinePCSSPyramidMid"),v.small===null&&(v.small=vl(8,8),v.small.texture.name="SplinePCSSPyramidSmall"),v.toMid=new kt(Io(`SplinePCSSPyramidToMid${V}`,x,Math.ceil(V/64),V-1,!1)),v.toSmall=new kt(Io("SplinePCSSPyramidToSmall",v.mid.texture,8,63,!0)),v.passKey=z),bl();let b=_.getRenderTarget();_.setRenderTarget(v.mid),v.toMid.render(_),_.setRenderTarget(v.small),v.toSmall.render(_),_.setRenderTarget(b),Oo.set(T,0,0),_.copyTextureToTexture(v.small.texture,as.texture,null,Oo),v.fresh=!0,ge.pcssPyramidBuilds++})(this,h.shadow),f={slot:Sp(h.shadow),fresh:Uo(h.shadow)}),t&&Ho()&&(Bd(h.shadow,-1),this._maskLights.push({light:h,shadow:h.shadow}),(p||h.shadow.map==null)&&(this._maskBlocked=!0)),jo(h.shadow,h.data?.penumbraSize??.5,f)&&ge.pcssPyramidActive++,!r){r=!0;let _=h.shadow;ge.pcssRadius0=_.radius??-1,ge.pcssPenumbra0=_.penumbraSize??-1}ge.pcssLights++}if(!(i>=Mm)){if(h.isPointLight||h.isSpotLight)xs.setFromMatrixPosition(h.matrixWorld),s[i].set(xs.x,xs.y,xs.z,0),i++;else if(h.isDirectionalLight&&h.target){h.target.updateMatrixWorld();let f=xs;f.setFromMatrixPosition(h.matrixWorld),f.sub(qp.setFromMatrixPosition(h.target.matrixWorld)).normalize(),s[i].set(f.x,f.y,f.z,1),i++}}}),W.toonLightCount.value=i;let d=this._lightShadowSignatures.get(e);this._lightShadowSignatures.set(e,o),this._lightShadowStateDirty=d!==void 0&&d!==o}_shadowMapId(e){if(e==null)return 0;let t=this._shadowMapIds.get(e);return t===void 0&&(t=++this._shadowMapIdSeq,this._shadowMapIds.set(e,t)),t}

5_renderShadowMaskPass(e,t){let a=0;if(Ho()&&!this.suppressShadowMask&&this.manageShadowUpdates&&!this._maskBlocked&&this._maskLights.length>=1&&this._maskLights.length<=4&&this._maskLights.every(r=>r.shadow.map?.depthTexture!=null)){this._shadowMask??(this._shadowMask=new Ep);let{targetsChanged:r}=this._shadowMask.render(this,e,t,this._maskLights);r&&this._grabTargetEpoch++,a=this._maskLights.length}W.shadowMaskEnabled.value=a>0?1:0,ge.shadowMaskActive=a}retireRenderTarget(e){e&&this._retiredGrabTargets.push(e),this._grabTargetEpoch++}_disposeRetiredGrabTargets(){if(this._retiredGrabTargets.length>0){for(let e of this._retiredGrabTargets)e.dispose();this._retiredGrabTargets.length=0}if(this._retiredGpuBuffers.length>0){for(let e of this._retiredGpuBuffers)try{e.destroy()}catch{}this._retiredGpuBuffers.length=0}}_retireBundleRecords(){for(let e of this._liveBundledPages())this._bundleStates.get(e)?.onResourceDispose();this._bundleEpochDirty=!0}_deferGpuBufferDestruction(){let e=this.backend,t=this._retiredGpuBuffers;e.destroyUniformBuffer=r=>{let s=e.get(r);s?.buffer&&t.push(s.buffer),e.delete(r),this._retireBundleRecords()};let a=e.attributeUtils;if(a){let r=a._getBufferAttribute.bind(a);a.destroyAttribute=s=>{let i=e.get(r(s));i?.buffer&&t.push(i.buffer),e.delete(s),this._retireBundleRecords()}}}_reallocGrabTarget(e,t,a,r){return e&&e.width===t&&e.height===a?e:(this.retireRenderTarget(e),r())}_withShadowUpdatesSuspended(e,t){let a=[];e.traverse(r=>{let s=r;if(s.isLight&&s.shadow){if(s.shadow.map==null)return;a.push({shadow:s.shadow,auto:s.shadow.autoUpdate,needs:s.shadow.needsUpdate}),s.shadow.autoUpdate=!1,s.shadow.needsUpdate=!1}});try{t()}finally{for(let r of a)r.shadow.autoUpdate=r.auto,r.shadow.needsUpdate=r.needs}}_renderPrepass(e,t){this._withShadowUpdatesSuspended(e,()=>{this.render(e,t)})}_renderAOPass(e,t,a){let r=this.getDrawingBufferSize(Gr),s=Math.max(1,Math.round(r.x)),i=Math.max(1,Math.round(r.y));this._aoRenderTarget=this._reallocGrabTarget(this._aoRenderTarget,s,i,()=>new Ee(s,i,{depthBuffer:!1})),W.aoRenderTarget.value=this._aoRenderTarget.texture,this._hbao||(this._hbao=new xp);let n=e;this._hbao.render(this,e,t,{radius:a.radius,bias:a.bias??.5,aoFullRes:a.aoFullRes===!0,aoColor:n.aoColor??{r:0,g:0,b:0},fogEnabled:(n.fog??null)!==null,fogNear:n.backupFog?.near??1,fogFar:n.backupFog?.far??1e3,fogMode:lr.getModeIndex({mode:e.fogMode}),fogDensity:e.fogDensity??lr.getDensity({}),fogHeightFalloff:e.fogHeightFalloff??lr.getHeightFalloff({}),fogHeightBase:e.fogHeightBase??lr.getHeightBase({})},this.pipeline.blueNoiseTexture,this._aoRenderTarget)}_renderNormalPass(e,t,a){let r=a.outline&&a.cavity?"both":a.cavity?"normals":"hash",s=this.getDrawingBufferSize(Gr),i=Math.max(1,Math.round(s.x)),n=Math.max(1,Math.round(s.y));this._normalTarget!==void 0&&this._normalTargetFlavor!==r&&(this.retireRenderTarget(this._normalTarget),this._normalTarget=void 0),this._normalTargetFlavor=r,this._normalTarget=this._reallocGrabTarget(this._normalTarget,i,n,()=>{let f=new Ee(i,n,{count:r==="both"?2:1,type:r==="normals"?At:Xt,depthTexture:new Cr(i,n)});r==="both"&&(f.textures[0].name="g0",f.textures[1].name="g1",f.textures[1].type=At);for(let p of f.textures)p.minFilter=Oe,p.magFilter=Oe;return f});let l=this._encodeMaterials[r];if(l===void 0){this._depthContrastUniform??(this._depthContrastUniform=L(1));let f=new ke;f.name=`SplineNormalPassEncode_${r}`;let p=Er("randomColor","vec3"),_=()=>{let g=ae(Ji),x=Kl.sub(.5).mul(this._depthContrastUniform).add(.5),v=X(X(p,g,.2),w(x),.4);return P(v,p.x)},y=()=>{let g=ae(na),x=Se(Cm,g,g.negate());return P(x,p.x)};f.fragmentNode=r==="both"?Hs({g0:_(),g1:y()}):r==="normals"?y():_(),f.lights=!1,f.blending=Ft,f.needsUpdate=!0,this._encodeMaterials[r]=f,l=f}this._depthContrastUniform.value=t instanceof Sn?(t.far-t.near)/1e4:1;let o=e.overrideMaterial,u=this.getRenderTarget(),d=this.getClearColor(Wp),m=this.getClearAlpha();t.layers.enable(8),t.layers.disable(0),t.layers.disable(3),e.overrideMaterial=l,this.setClearColor(0,0),this.setRenderTarget(this._normalTarget),this._renderPrepass(e,t),this.setRenderTarget(u),this.setClearColor(d,m),e.overrideMaterial=o,t.layers.enable(0),t.layers.enable(3);let h=this._normalTarget.textures;W.normalRenderTarget.value=r==="normals"?Ja:h[0],W.normalRenderTargetDepth.value=this._normalTarget.depthTexture,W.normalViewRenderTarget.value=r==="both"?h[1]:r==="normals"?h[0]:Ja}blitTextureToTarget(e,t){let a=this._uiBlitPass;if(!a){let i=re(Ja),n=new ke;n.name="SplineUICanvasBlit",n.fragmentNode=i.sample(Ie()),n.lights=!1,n.blending=Ft,n.depthTest=!1,n.depthWrite=!1,n.needsUpdate=!0,a={quad:new kt(n),input:i},this._uiBlitPass=a}let r=this.getRenderTarget(),s=this.getMRT();a.input.value=e,this.setMRT(null),this.setRenderTarget(t),this.clear(),a.quad.render(this),this.setRenderTarget(r),this.setMRT(s)}

vendor: 5,750 bytes, line 5

5_getPrefilterPass(e){this._prefilterPasses||(this._prefilterPasses=[]);let t=this._prefilterPasses[e];if(t)return t;let a=re(Ja),r=L(new ve(1,0)),s=new ke;s.name="SplineTransmissionPrefilter";let i=Ie(),n=r,l=u=>a.sample(i.add(n.mul(u))).rgb,o=l(0).mul(.40262).add(l(1.182408).mul(.29869)).add(l(-1.182408).mul(.29869));return s.fragmentNode=P(o,1),s.lights=!1,s.blending=Ft,s.depthTest=!1,s.depthWrite=!1,s.needsUpdate=!0,t={quad:new kt(s),input:a,step:r},this._prefilterPasses[e]=t,t}_getDownsamplePass(e){this._downsamplePasses||(this._downsamplePasses=[]);let t=this._downsamplePasses[e];return t||(t=this._buildDownsamplePassEntry($d,"SplineTransmissionDownsample"),this._downsamplePasses[e]=t,t)}_buildDownsamplePassEntry(e,t){let a=re(Ja),r=L(new ve(1,1)),s=new ke;s.name=t;let i=Ie(),n=r,l=(u,d)=>a.sample(i.add(A(u,d).mul(n))).rgb,o=null;if(e==="k4")for(let u=-1;u<=1;u++)for(let d=-1;d<=1;d++){let m=(d===0?2:1)*(u===0?2:1)/16,h=l(d,u).mul(m);o=o?o.add(h):h}else{let u=[-1.5,-.5,.5,1.5],d=[.1665,.3335,.3335,.1665];for(let m=0;m<4;m++)for(let h=0;h<4;h++){let f=d[h]*d[m],p=l(u[h],u[m]).mul(f);o=o?o.add(p):p}}return s.fragmentNode=P(o,1),s.lights=!1,s.blending=Ft,s.depthTest=!1,s.depthWrite=!1,s.needsUpdate=!0,{quad:new kt(s),input:a,step:r}}_getPlanarDownsamplePass(e){this._planarDownsamplePasses||(this._planarDownsamplePasses=[]);let t=this._planarDownsamplePasses[e];return t||(t=this._buildDownsamplePassEntry("g16","SplinePlanarDownsample"),this._planarDownsamplePasses[e]=t,t)}_batchedMipCopies(e){let t=this.backend,a=t?.device;if(!a||typeof t?.get!="function"){for(let i of e)this.copyTextureToTexture(i.src,i.dst,null,null,0,i.dstLevel);return}let r=a.createCommandEncoder({label:"SplineCascadeMipCopies"}),s=0;for(let i of e){let n=t.get(i.src)?.texture,l=t.get(i.dst)?.texture;n&&l?(r.copyTextureToTexture({texture:n,mipLevel:0,origin:{x:0,y:0,z:0}},{texture:l,mipLevel:i.dstLevel,origin:{x:0,y:0,z:0}},{width:i.width,height:i.height,depthOrArrayLayers:1}),s++):this.copyTextureToTexture(i.src,i.dst,null,null,0,i.dstLevel)}s>0&&a.queue.submit([r.finish()])}_getReflectionDownsamplePass(e){this._reflectionDownsamplePasses||(this._reflectionDownsamplePasses=[]);let t=this._reflectionDownsamplePasses[e];return t||(t=this._buildDownsamplePassEntry("g16","SplineReflectionDownsample"),this._reflectionDownsamplePasses[e]=t,t)}_renderTransmissionPass(e,t){let a=this.getDrawingBufferSize(Gr),r=this.hdTransmission?1:2,s=Math.max(1,Math.round(a.x/r)),i=Math.max(1,Math.round(a.y/r)),n=this.backend?.isWebGPUBackend===!0?kl:"off";this._transmissionTarget=this._reallocGrabTarget(this._transmissionTarget,s,i,()=>{let d=new Ee(s,i,{depthBuffer:!0}),m=d.texture;return n==="off"?(m.generateMipmaps=!0,m.minFilter=Oa):(m.generateMipmaps=!1,m.minFilter=Ve),m.magFilter=Ve,d});let l=[];e.traverse(d=>{let m=d;if(!(m.isMesh||m.isLine||m.isPoints||m.isSprite))return;let h=m.layers;h&&8&h.mask&&h.mask!==8&&(l.push({layers:h,mask:h.mask}),h.mask=8)});let o=this.getRenderTarget();t.layers.disable(3),this.setRenderTarget(this._transmissionTarget),this._renderPrepass(e,t),this.setRenderTarget(o),t.layers.enable(3);for(let d of l)d.layers.mask=d.mask;let u=this._transmissionTarget.texture;if(n!=="off"){let d=(_,y)=>{let g=new Ee(_,y,{depthBuffer:!1});return g.texture.generateMipmaps=!1,g.texture.minFilter=Ve,g.texture.magFilter=Ve,g};this._transmissionBlurTmp=this._reallocGrabTarget(this._transmissionBlurTmp,s,i,()=>d(s,i));let m=Math.floor(Math.log2(Math.max(s,i)))+1,h=this._transmissionBlurTarget;this._transmissionBlurTarget=this._reallocGrabTarget(this._transmissionBlurTarget,s,i,()=>{let _=new Ee(s,i,{depthBuffer:!1}),y=_.texture;return y.minFilter=Oa,y.magFilter=Ve,n==="base"?y.generateMipmaps=!0:(y.generateMipmaps=!1,y.mipmaps=Array.from({length:m},(g,x)=>({width:Math.max(1,s>>x),height:Math.max(1,i>>x)}))),_}),n==="full"&&this._transmissionBlurTarget!==h&&this.initTexture(this._transmissionBlurTarget.texture);let f=this._getPrefilterPass(0);f.input.value=this._transmissionTarget.texture,f.step.value.set(1/s,0),this.setRenderTarget(this._transmissionBlurTmp),f.quad.render(this);let p=this._getPrefilterPass(1);if(p.input.value=this._transmissionBlurTmp.texture,p.step.value.set(0,1/i),n==="base")this.setRenderTarget(this._transmissionBlurTarget),p.quad.render(this);else{for(let _=0;_<m;_++)this._transmissionChain[_]=this._reallocGrabTarget(this._transmissionChain[_],Math.max(1,s>>_),Math.max(1,i>>_),()=>d(Math.max(1,s>>_),Math.max(1,i>>_)));for(let _=m;_<this._transmissionChain.length;_++)this._transmissionChain[_]?.dispose(),this._transmissionChain[_]=void 0;this._transmissionChain.length=m,this.setRenderTarget(this._transmissionChain[0]),p.quad.render(this);for(let _=1;_<m;_++){let y=this._transmissionChain[_-1],g=this._getDownsamplePass(_-1);g.input.value=y.texture,g.step.value.set(1/y.width,1/y.height),this.setRenderTarget(this._transmissionChain[_]),g.quad.render(this)}for(let _=0;_<m;_++)this.copyTextureToTexture(this._transmissionChain[_].texture,this._transmissionBlurTarget.texture,null,null,0,_)}this.setRenderTarget(o),u=this._transmissionBlurTarget.texture}W.transmissionRenderTarget.value=u,W.transmissionActualSize.value.set(s,i),W.aspectRatio.value=a.x>=a.y?W.aspectRatio.value.set(a.y/a.x,1):W.aspectRatio.value.set(1,a.x/a.y)}_buildReflectionDepthPasses(e,t,a){if(this._reflectionDepthPasses)for(let s of this._reflectionDepthPasses)s?.quad.material?.dispose();let r=[];{let s=new ke;s.name="SplineReflectionDepthBlit";let i=re(this._reflectionTarget.depthTexture);s.fragmentNode=P(w(i.sample(Ie())),1),s.lights=!1,s.blending=Ft,s.depthTest=!1,s.depthWrite=!1,s.needsUpdate=!0,r.push({quad:new kt(s)})}for(let s=1;s<a;s++){let i=Math.max(1,e>>s-1),n=Math.max(1,t>>s-1),l=new ke;

vendor: 4,137 bytes, line 5

5l.name=`SplineReflectionDepthMin${s}`;let o=re(this._reflectionDepthChain[s-1].texture),u=da,d=N(u.x).mul(2),m=N(u.y).mul(2),h=(g,x)=>o.load(aa(d.add(g),m.add(x))).x,f=(g,x)=>xe(g,x),p=f(f(h(0,0),h(1,0)),f(h(1,1),h(0,1))),_=!!(1&i),y=!!(1&n);_&&(p=f(p,f(h(2,0),h(2,1)))),y&&(p=f(p,f(h(0,2),h(1,2)))),_&&y&&(p=f(p,h(2,2))),l.fragmentNode=P(w(p),1),l.lights=!1,l.blending=Ft,l.depthTest=!1,l.depthWrite=!1,l.needsUpdate=!0,r.push({quad:new kt(l)})}this._reflectionDepthPasses=r}_renderReflectionPass(e,t){let a=this.getDrawingBufferSize(Gr),r=1/0,s=0,i=0;e.traverse(T=>{let z=T;if(!(z.isMesh&&16&z.layers.mask))return;let b=this._reflectiveMeshCoverage(z,t,a.y),M=Array.isArray(z.material)?z.material:[z.material];for(let S of M){if(!S?.layers)continue;let C=jc(S);!C||(r=Math.min(r,C.min*b.scale),s=Math.max(s,C.max*b.scale),C.max*b.scale>.45&&(i=Math.max(i,b.diameterPx)))}});let n=1;if(Yd&&r!==1/0)for(r>=6?n=4:r>=2&&(n=2);n>1&&i>0&&i/n<128;)n>>=1;let l=Math.max(1,Math.round(a.x/n)),o=Math.max(1,Math.round(a.y/n)),u=Math.floor(Math.log2(Math.max(l,o)))+1,d=this.backend?.isWebGPUBackend===!0&&Zd;this._reflectionTarget=this._reallocGrabTarget(this._reflectionTarget,l,o,()=>{let T=new Ee(l,o,{depthTexture:new Cr(l,o)});return d?(T.texture.generateMipmaps=!1,T.texture.minFilter=Ve):(T.texture.generateMipmaps=!0,T.texture.minFilter=Oa),T.texture.magFilter=Ve,T});let m=(T,z)=>{let b=new Ee(T,z,{depthBuffer:!1,type:Xt,format:or});return b.texture.generateMipmaps=!1,b.texture.minFilter=Oe,b.texture.magFilter=Oe,b},h=this._reflectionDepthPyramid;this._reflectionDepthPyramid=this._reallocGrabTarget(this._reflectionDepthPyramid,l,o,()=>{let T=m(l,o);return T.texture.mipmaps=Array.from({length:u},(z,b)=>({width:Math.max(1,l>>b),height:Math.max(1,o>>b)})),T}),this._reflectionDepthPyramid!==h&&this.initTexture(this._reflectionDepthPyramid.texture);for(let T=0;T<u;T++)this._reflectionDepthChain[T]=this._reallocGrabTarget(this._reflectionDepthChain[T],Math.max(1,l>>T),Math.max(1,o>>T),()=>m(Math.max(1,l>>T),Math.max(1,o>>T)));for(let T=u;T<this._reflectionDepthChain.length;T++)this._reflectionDepthChain[T]?.dispose(),this._reflectionDepthChain[T]=void 0;this._reflectionDepthChain.length=u;let f=this.auxiliary||this._skySystem?.attached!==!0?null:this._skySystem.environmentTexture??null,p=W.reflectionEnvMap,_=f??fs;!this.auxiliary&&p.value!==_&&(p.value=_,this._grabTargetEpoch++),W.reflectionEnvEnabled.value=f!==null?1:0;let y=this.getClearColor(Hp);W.reflectionMissColor.value.set(y.r,y.g,y.b);let g=[];e.traverse(T=>{let z=T;if(!(z.isMesh||z.isLine||z.isPoints||z.isSprite))return;let b=z.layers;b&&16&b.mask&&b.mask!==16&&(g.push({layers:b,mask:b.mask}),b.mask=16)});let x=this.getRenderTarget();t.layers.disable(4),this.setRenderTarget(this._reflectionTarget),this._renderPrepass(e,t),t.layers.enable(4);for(let T of g)T.layers.mask=T.mask;this._reflectionPassesKey!==`${l}x${o}`&&(this._buildReflectionDepthPasses(l,o,u),this._reflectionPassesKey=`${l}x${o}`);let v=this._reflectionDepthPasses;for(let T=0;T<u;T++)this.setRenderTarget(this._reflectionDepthChain[T]),v[T].quad.render(this);this._batchedMipCopies(Array.from({length:u},(T,z)=>({src:this._reflectionDepthChain[z].texture,dst:this._reflectionDepthPyramid.texture,dstLevel:z,width:Math.max(1,l>>z),height:Math.max(1,o>>z)})));let V=this._reflectionTarget.texture;if(d){let T=this._reflectionColorPyramid;this._reflectionColorPyramid=this._reallocGrabTarget(this._reflectionColorPyramid,l,o,()=>{let M=new Ee(l,o,{depthBuffer:!1}),S=M.texture;return S.minFilter=Oa,S.magFilter=Ve,S.generateMipmaps=!1,S.mipmaps=Array.from({length:u},(C,R)=>({width:Math.max(1,l>>R),height:Math.max(1,o>>R)})),M}),this._reflectionColorPyramid!==T&&this.initTexture(this._reflectionColorPyramid.texture);let z=s>0?u:1,b=(M,S)=>{let C=new Ee(M,S,{depthBuffer:!1});return C.texture.generateMipmaps=!1,C.texture.minFilter=Ve,C.texture.magFilter=Ve,C};for(let M=1;M<z;M++)this._reflectionColorChain[M]=this._reallocGrabTarget(this._reflectionColorChain[M],Math.max(1,l>>M),Math.max(1,o>>M),()=>b(Math.max(1,l>>M),Math.max(1,o>>M)));for(let M=z;M<this._reflectionColorChain.length;

vendor: 6,320 bytes, line 5

5M++)this._reflectionColorChain[M]?.dispose(),this._reflectionColorChain[M]=void 0;this._reflectionColorChain.length=z;for(let M=1;M<z;M++){let S=M===1?this._reflectionTarget:this._reflectionColorChain[M-1],C=this._getReflectionDownsamplePass(M-1);C.input.value=S.texture,C.step.value.set(1/S.width,1/S.height),this.setRenderTarget(this._reflectionColorChain[M]),C.quad.render(this)}this._batchedMipCopies([{src:this._reflectionTarget.texture,dst:this._reflectionColorPyramid.texture,dstLevel:0,width:l,height:o},...Array.from({length:z-1},(M,S)=>({src:this._reflectionColorChain[S+1].texture,dst:this._reflectionColorPyramid.texture,dstLevel:S+1,width:Math.max(1,l>>S+1),height:Math.max(1,o>>S+1)}))]),V=this._reflectionColorPyramid.texture}this.setRenderTarget(x),W.reflectionRenderTarget.value=V,W.reflectionDepthPyramid.value=this._reflectionDepthPyramid.texture,W.reflectionDepthSize.value.set(l,o),W.reflectionDepthLevels.value=u,this._reflectionGrabInfo={div:n,w:l,h:o,minBlur:r,maxBlur:s}}_reflectiveMeshCoverage(e,t,a){let r=e.geometry;if(!r)return{diameterPx:a,scale:1};r.boundingSphere===null&&r.computeBoundingSphere();let s=r.boundingSphere;if(!s)return{diameterPx:a,scale:1};let i=e.matrixWorld.elements,n=Math.sqrt(Math.max(i[0]*i[0]+i[1]*i[1]+i[2]*i[2],i[4]*i[4]+i[5]*i[5]+i[6]*i[6],i[8]*i[8]+i[9]*i[9]+i[10]*i[10])),l=s.radius*n;ru.copy(s.center).applyMatrix4(e.matrixWorld);let o=t.projectionMatrix.elements[5]*a/2,u=1;t.isPerspectiveCamera===!0&&(su.setFromMatrixPosition(t.matrixWorld),u=Math.max(ru.distanceTo(su),t.near??.1));let d=2*l*o/u;return{diameterPx:d,scale:Math.min(1,d/(.66*a))}}_renderReflectionResolvePass(e,t){let a=this._reflectionGrabInfo,r=this.backend?.isWebGPUBackend===!0&&Jd&&a!==void 0&&a.maxBlur>.45;if(r){let V=!0;e.traverse(T=>{let z=T;if(!(z.isMesh&&16&z.layers.mask))return;let b=Array.isArray(z.material)?z.material:[z.material],M=null;for(let S of b)if(S?.layers&&(M=$c(S),M!==null))break;M!=="variable"?M!==null?(z.userData.__srMode=M.blur>.45?1+M.tracingMode:0,z.userData.__srBlur=M.blur*this._reflectiveMeshCoverage(z,t,this.getDrawingBufferSize($p).y).scale,z.userData.__srThickness=M.thickness,z.userData.__srStepSize=M.stepSize,z.userData.__srSteps=M.steps):z.userData.__srMode=0:V=!1}),r=V}let s=r?a.w:4,i=r?a.h:4,n=(V,T)=>()=>{let z=new Ee(V,T,{type:At,depthBuffer:!1});return z.texture.generateMipmaps=!1,z.texture.minFilter=Ve,z.texture.magFilter=Ve,z};if(this._reflectionResolveTarget=this._reallocGrabTarget(this._reflectionResolveTarget,s,i,n(s,i)),W.reflectionResolveTarget.value=this._reflectionResolveTarget.texture,!r)return void(W.reflectionResolveEnabled.value=0);let{w:l,h:o}=a;if(this._reflectionGBufferTarget=this._reallocGrabTarget(this._reflectionGBufferTarget,l,o,()=>{let V=new Ee(l,o,{count:2,type:At,depthTexture:new Cr(l,o)});for(let T of V.textures)T.generateMipmaps=!1,T.minFilter=Oe,T.magFilter=Oe;return V.textures[0].name="g0",V.textures[1].name="g1",V}),this._reflectionResolveMarchTarget=this._reallocGrabTarget(this._reflectionResolveMarchTarget,l,o,n(l,o)),this._reflectionResolveBlurTmp=this._reallocGrabTarget(this._reflectionResolveBlurTmp,l,o,n(l,o)),!this._reflectionGBufferMaterial){let V=new ke;V.name="SplineReflectionGBuffer";let T=Sr("__splinePlanarMirror","float"),z=W.reflectionPlanarEnabled.greaterThan(.5),b=Sr("__srMode","float"),M=Se(T.greaterThan(.5).and(z),c(0),b);V.fragmentNode=Hs({g0:P(ae(na),M),g1:P(Sr("__srBlur","float"),Sr("__srThickness","float"),Sr("__srStepSize","float"),Sr("__srSteps","float"))}),V.lights=!1,V.blending=Ft,V.needsUpdate=!0,this._reflectionGBufferMaterial=V}let u=this._skippedAsyncDraws??0,d=e.overrideMaterial,m=this.getRenderTarget(),h=this.getClearColor(jp),f=this.getClearAlpha(),p=t.layers.mask;e.overrideMaterial=this._reflectionGBufferMaterial,t.layers.mask=16,this.setClearColor(0,0),this.setRenderTarget(this._reflectionGBufferTarget),this._renderPrepass(e,t),e.overrideMaterial=d,t.layers.mask=p,this.setClearColor(h,f);let _=W.reflectionRenderTarget.value,y=W.reflectionEnvMap.value,g=this._reflectionGBufferTarget,x=`${l}x${o}|${g.textures[0].uuid}|${_.uuid}|${this._reflectionDepthPyramid.texture.uuid}|${y.uuid}|${this._reflectionResolveMarchTarget.texture.uuid}|${this._reflectionResolveBlurTmp.texture.uuid}`;x!==this._reflectionResolveMarchKey&&(this._buildReflectionResolveMarch(_,y,l,o),this._reflectionResolveMarchKey=x);let v=this._reflectionResolveMarch;v.proj.value.copy(t.projectionMatrix),v.projInv.value.copy(t.projectionMatrix).invert(),v.camWorld.value.copy(t.matrixWorld),v.near.value=t.near??.1,this.setRenderTarget(this._reflectionResolveMarchTarget),v.quad.render(this),this.setRenderTarget(this._reflectionResolveBlurTmp),this._reflectionResolveBlur.h.render(this),this.setRenderTarget(this._reflectionResolveTarget),this._reflectionResolveBlur.v.render(this),this.setRenderTarget(m),W.reflectionResolveEnabled.value=1,(this._skippedAsyncDraws??0)>u&&(W.reflectionResolveEnabled.value=0)}_buildReflectionResolveMarch(e,t,a,r){this._reflectionResolveMarch&&this._reflectionResolveMarch.quad.material.dispose(),this._reflectionResolveBlur&&(this._reflectionResolveBlur.h.material.dispose(),this._reflectionResolveBlur.v.material.dispose());let s=L(new Ra),i=L(new Ra),n=L(new Ra),l=L(.1),o=this._reflectionGBufferTarget,u=re(o.textures[0]),d=re(o.textures[1]),m=re(o.depthTexture),h=re(e),f=re(this._reflectionDepthPyramid.texture),p=re(t),_=new ke;_.name="SplineReflectionResolve";let y=U(()=>{let V=da,T=aa(N(V.x),N(V.y)),z=Ie(),b=u.load(T).toVar(),M=m.sample(z).toVar(),S=P(0).toVar(),C=c(0).toVar();return B(b.w.greaterThan(.5),()=>{let R=d.load(T).toVar(),k=Xr(i,z.x,z.y,M),E=Pd({dials:{blur:R.x,thickness:R.y,stepSize:R.z,steps:N(R.w),tracingMode:b.w.sub(1)},surface:{originView:k,normalV:ae(b.xyz),screenUv:z,fragWindowZ:M},camera:{projectionMatrix:s,projectionMatrixInverse:i,worldMatrix:n,near:l},resources:{colorMap:h,depthPyramid:f,depthPyramidNode:f,envMap:p},usePlanar:vm(!1),noisePixel:A(T),singleRay:{footprintOut:C}});S.assign(P(E,C.add(1)))}),S});_.fragmentNode=y(),_.lights=!1,_.blending=Ft,_.depthTest=!1,_.depthWrite=!1,_.needsUpdate=!0,this._reflectionResolveMarch={quad:new kt(_),proj:s,projInv:i,camWorld:n,near:l};let g=re(this._reflectionResolveMarchTarget.texture),x=re(this._reflectionResolveBlurTmp.texture),v=V=>{let T=new ke;

vendor: 6,360 bytes, line 5

5T.name=`SplineReflectionResolveBlur${V.toUpperCase()}`;let z=V==="x"?g:x,b=V==="x"?1/a:1/r,M=U(()=>{let S=Ie(),C=g.sample(S).toVar().w.sub(1).max(0).clamp(.5,12).toVar(),R=P(0).toVar(),k=0;for(let E=-6;E<=6;E++){let I=Math.exp(E/3*-.5*(E/3));k+=I;let D=V==="x"?A(C.mul(E/6*b),0):A(0,C.mul(E/6*b)),H=z.sample(S.add(D)).toVar(),K=V==="x"?H.w.min(1):H.w;R.addAssign(P(H.rgb,K).mul(I))}return R.div(k)});return T.fragmentNode=M(),T.lights=!1,T.blending=Ft,T.depthTest=!1,T.depthWrite=!1,T.needsUpdate=!0,new kt(T)};this._reflectionResolveBlur={h:v("x"),v:v("y")}}_renderPlanarReflectionPass(e,t){let a=null;if(e.traverse(p=>{let _=p;if(!(_.isMesh&&16&_.layers.mask&&(_.userData.__splinePlanarMirror=0,(Array.isArray(_.material)?_.material:[_.material]).some(R=>R?.layers&&Kc(R)))))return;let y=_.geometry;if(!y)return;y.boundingBox===null&&y.computeBoundingBox();let g,x,v=y.boundingBox,V=v.max.x-v.min.x,T=v.max.y-v.min.y,z=v.max.z-v.min.z,b=_.matrixWorld.elements,M=Math.hypot(b[0],b[1],b[2]),S=Math.hypot(b[4],b[5],b[6]),C=Math.hypot(b[8],b[9],b[10]);V<=T&&V<=z?(g=Kp,x=T*S*(z*C)):T<=V&&T<=z?(g=Xp,x=V*M*(z*C)):(g=Qp,x=V*M*(T*S)),(!a||x>a.area)&&(a={mesh:_,normalAxis:g,area:x})}),!a)return void(W.reflectionPlanarEnabled.value=0);let r=a.mesh,s=a.mesh.matrixWorld;if(er.copy(a.normalAxis).transformDirection(s),yr.setFromMatrixPosition(s),hi.setFromMatrixPosition(t.matrixWorld),xr.subVectors(yr,hi),xr.dot(er)>0&&er.negate(),xr.dot(er)>0)return void(W.reflectionPlanarEnabled.value=0);r.userData.__splinePlanarMirror=1,(!this._planarVirtualCamera||this._planarVirtualCamera.type!==t.type)&&(this._planarVirtualCamera=t.clone());let i=this._planarVirtualCamera;if(xr.subVectors(yr,hi),xr.reflect(er).negate(),xr.add(yr),On.extractRotation(t.matrixWorld),iu.set(0,0,-1).applyMatrix4(On).add(hi),mi.subVectors(yr,iu),mi.reflect(er).negate(),mi.add(yr),i.position.copy(xr),i.up.set(0,1,0).applyMatrix4(On),i.up.reflect(er),i.lookAt(mi),i.updateMatrixWorld(),i.projectionMatrix.copy(t.projectionMatrix),i.projectionMatrixInverse.copy(i.projectionMatrix).invert(),t.isPerspectiveCamera===!0){Or.setFromNormalAndCoplanarPoint(er,yr),Or.applyMatrix4(i.matrixWorldInverse),Wa.set(Or.normal.x,Or.normal.y,Or.normal.z,Or.constant);let p=i.projectionMatrix.elements;vs.x=(Math.sign(Wa.x)+p[8])/p[0],vs.y=(Math.sign(Wa.y)+p[9])/p[5],vs.z=-1,vs.w=(1+p[10])/p[14],Wa.multiplyScalar(1/Wa.dot(vs)),p[2]=Wa.x,p[6]=Wa.y,p[10]=Wa.z,p[14]=Wa.w}let n=this.getDrawingBufferSize(Zp),l=Math.max(1,Math.round(n.x)),o=Math.max(1,Math.round(n.y)),u=this.backend?.isWebGPUBackend===!0&&Qd;this._planarTarget=this._reallocGrabTarget(this._planarTarget,l,o,()=>{let p=new Ee(l,o);return u?(p.texture.generateMipmaps=!1,p.texture.minFilter=Ve):(p.texture.generateMipmaps=!0,p.texture.minFilter=Oa),p.texture.magFilter=Ve,p});let d=[];e.traverse(p=>{let _=p;if(!(_.isMesh||_.isLine||_.isPoints||_.isSprite))return;let y=_.layers;y&&16&y.mask&&y.mask!==16&&(d.push({layers:y,mask:y.mask}),y.mask=16)}),i.layers.mask=-17&t.layers.mask;let m=this.getRenderTarget();this.setRenderTarget(this._planarTarget),this._renderPrepass(e,i),this.setRenderTarget(m);for(let p of d)p.layers.mask=p.mask;let h=this._planarTarget.texture;if(u){let p=Math.floor(Math.log2(Math.max(l,o)))+1,_=this._planarPyramid;this._planarPyramid=this._reallocGrabTarget(this._planarPyramid,l,o,()=>{let g=new Ee(l,o,{depthBuffer:!1}),x=g.texture;return x.minFilter=Oa,x.magFilter=Ve,x.generateMipmaps=!1,x.mipmaps=Array.from({length:p},(v,V)=>({width:Math.max(1,l>>V),height:Math.max(1,o>>V)})),g}),this._planarPyramid!==_&&this.initTexture(this._planarPyramid.texture);let y=(g,x)=>{let v=new Ee(g,x,{depthBuffer:!1});return v.texture.generateMipmaps=!1,v.texture.minFilter=Ve,v.texture.magFilter=Ve,v};for(let g=1;g<p;g++)this._planarChain[g]=this._reallocGrabTarget(this._planarChain[g],Math.max(1,l>>g),Math.max(1,o>>g),()=>y(Math.max(1,l>>g),Math.max(1,o>>g)));for(let g=p;g<this._planarChain.length;g++)this._planarChain[g]?.dispose(),this._planarChain[g]=void 0;this._planarChain.length=p;for(let g=1;g<p;g++){let 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m==="texture"||m==="video"?d:-1},l=r.category==="physical",o=["spe-tsl-v1",`lights=${r.lights}`,`cat=${r.category}`,`lvis=${i.visible===!0}`,`lidx=${r.layers.indexOf(s)}`,`bump=${n(i.bumpMap)}`,`rough=${l?n(i.roughnessMap):-1}`,`metal=${l?n(i.metalnessMap):-1}`,`nrm=${l?n(i.normalMap):-1}`,`ao=${l?n(i.aoMap):-1}`,`emis=${l?n(i.emissiveMap):-1}`,`rch=${l?i.roughnessMapChannel??"luminance":""}`,`mch=${l?i.metalnessMapChannel??"b":""}`,`ach=${l?i.aoMapChannel??"r":""}`];

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Ra,this._hasGatherMVP=!1,this._ultraRetired=[],this._retiredStorage=[],this._ultraBuildSeq=0,this._lastRenderer=null,this._meshBaker=null,this._meshAtBuild=!1,this._meshSlots=new Map,this._meshBakeFailed=new Map,this._meshWarnedFull=!1,this.shapesTex=re(new Lt),this.spatialTexNode=re(new Lt),this.potentialTexNode=re(new Lt),this.voxelTexNode=re(new Lt),this.pyramid1TexNode=re(new Lt),this.pyramid2TexNode=re(new Lt),this.npartUniform=L(0),this.spatialnUniform=L(1),this.spanUniform=L(0),this.spatialMaterial=null,this.potentialMaterial=null,this.voxelMaterial=null,this.spatialTargets=[],this.potentialTargets=[],this.voxelTargets=[],this.pyramidTargets=[],this.retired=!1,this._onSettled=[],this.capacityHint=e,this.poolHint=t,this.vertHint=a;let r=hn(),s=new fr(r.triTable,16,256,or,Xt);s.needsUpdate=!0;let i=new fr(r.numTrisTable,256,1,or,Xt);i.needsUpdate=!0,this.triTableTexNode=re(s),this.numTrisTableTexNode=re(i)}shapeRow(e,t){return this.shapesTex.sample(A(e,(t+.5)/5))}_quadMaterial(e,t){let a=new ke;return a.name=e,a.fragmentNode=t,a.depthTest=!1,a.depthWrite=!1,a.blending=Ft,a.needsUpdate=!0,a}_buildSpatialMaterial(e){let t=e.spatialDivisions,a=ad,r=rd,s=this.npartUniform,i=this.spatialnUniform,n=this.spanUniform,l=e.spatialn,o=U(()=>{let u=A(t*l,t**2),d=J(Ie().mul(u)).toVar(),m=d.y.toVar(),h=m.sub(J(m.div(t)).mul(t)).toVar();m.assign(J(m.div(t)));let f=m,p=d.x.toVar(),_=p.sub(J(p.div(i)).mul(i)).toVar().mul(4*a).toVar();p.assign(J(p.div(i)));let y=w(p,h,f),g=y.div(t).mul(2).sub(1).sub(n).toVar(),x=y.add(1).div(t).mul(2).sub(1).add(n).toVar(),v=V=>{let T=c(0).toVar();for(let z=a-1;z>=0;z--){let b=V.add(z),M=b.add(.5).div(r),S=this.shapeRow(M,0),C=vg(S.xyz),R=ca(S.w);T.mulAssign(2);let k=ca(g.x).lessThan(ca(C.x)).and(ca(C.x).lessThan(ca(x.x))).and(ca(g.y).lessThan(ca(C.y))).and(ca(C.y).lessThan(ca(x.y))).and(ca(g.z).lessThan(ca(C.z))).and(ca(C.z).lessThan(ca(x.z))).and(b.lessThan(ca(s))).or(R.equal(-2));T.addAssign(k.select(c(1),c(0)))}return T};return P(v(_),v(_.add(a)),v(_.add(2*a)),v(_.add(3*a)))})();return this._quadMaterial("SplineShapeBlend.spatial",o)}_fieldEnv(e,t){return{shapeRow:(a,r)=>this.shapeRow(a,r),spatialTex:this.spatialTexNode,spatialDivisions:e.spatialDivisions,spatialn:e.spatialn,colorKBump:t,meshSdf:this._meshBaker?yg(this._meshBaker.atlas):void 0}}_buildPotentialMaterial(e){let t=e.spatialDivisions,a=e.resolution,r=a-1,s=1/a,i=e.zLayersPerRow,n=e.basePyramidSize,l=Il(this._fieldEnv(e,2*s)),o=U(()=>{let u=J(Ie().mul(A(n,n))).toVar(),d=u.x.mod(a),m=u.y.mod(a),h=J(u.x.mul(s)).add(J(u.y.mul(s)).mul(i)),f=w(d,m,h),p=f.div(r).mul(2).sub(1).toVar(),_=J(f.div(r).mul(t-1)).toVar(),{sdf:y,color:g}=l(p,_),x=Le(g.x.mul(255)),v=Le(g.y.mul(255)),V=x.shiftLeft(Le(8)).bitOr(v);return P(y,V.toFloat().mul(1525902e-11),g.z,g.w)})();return this._quadMaterial("SplineShapeBlend.potential",o)}_buildVoxelMaterial(e){let t=e.resolution,a=t-1,r=1/t,s=e.zLayersPerRow,i=e.basePyramidSize,n=ph(t,s),l=this.potentialTexNode,o=()=>{let h=J(Ie().mul(A(i,i))).toVar();return{xi:h.x.mod(t).toVar(),yi:h.y.mod(t).toVar(),zi:J(h.x.mul(r)).add(J(h.y.mul(r)).mul(s)).toVar()}},u=(h,f,p)=>{let _=(y,g,x,v)=>n(h.add(y),f.add(g),p.add(x),l).x.lessThan(0).toFloat().mul(v);return _(0,0,0,1).add(_(1,0,0,2)).add(_(0,1,0,8)).add(_(1,1,0,4)).add(_(0,0,1,16)).add(_(1,0,1,32)).add(_(0,1,1,128)).add(_(1,1,1,64))},d=U(()=>{let{xi:h,yi:f,zi:p}=o(),_=((x,v,V)=>{let T=n(x.add(1),v,V,l).x.sub(n(x.sub(1),v,V,l).x),z=n(x,v.add(1),V,l).x.sub(n(x,v.sub(1),V,l).x),b=n(x,v,V.add(1),l).x.sub(n(x,v,V.sub(1),l).x);return T.equal(0).and(z.equal(0)).and(b.equal(0)).select(w(.199,.299,.399),ae(w(T,z,b)))})(h,f,p).toVar(),y=P(_,0).toVar(),g=h.greaterThanEqual(a).or(f.greaterThanEqual(a)).or(p.greaterThanEqual(a));return B(g.not(),()=>{y.assign(P(_,u(h,f,p)))}),y})(),m=U(()=>{let{xi:h,yi:f,zi:p}=o(),_=P(0).toVar(),y=h.greaterThanEqual(a).or(f.greaterThanEqual(a)).or(p.greaterThanEqual(a));return B(y.not(),()=>{let g=u(h,f,p);_.assign(this.numTrisTableTexNode.sample(A(g.add(.5).div(256),.5)))}),_})();return this._quadMaterial("SplineShapeBlend.voxel",Hs({output:d,numTris:m}))}_spatialTargetFor(e){let t=e.resolutionLevel,a=this.spatialTargets[t];return a||(a=Vs(e.spatialDivisions*e.spatialn,e.spatialDivisions**2),this.spatialTargets[t]=a),a}_targetsFor(e){let t=e.resolutionLevel,a=this._spatialTargetFor(e),r=this.potentialTargets[t];r||(r=Vs(e.basePyramidSize,e.basePyramidSize),this.potentialTargets[t]=r);let s=this.voxelTargets[t];s||(s=Vs(e.basePyramidSize,e.basePyramidSize,2),s.textures[0].name="output",s.textures[1].name="numTris",s.textures[1].format=or,this.voxelTargets[t]=s);let i=this.pyramidTargets[t];

5return i||(i=[Vs(e.pyramidTexture1Width,e.pyramidTexture1Height),Vs(e.pyramidTexture2Width,e.pyramidTexture2Height)],this.pyramidTargets[t]=i),{spatial:a,potential:r,voxel:s,pyramid:i}}_marchResources(e){let t=this._targetsFor(e),a=e.pyramidLevelSizes.length%2==0?0:1,r=1-a;return{resolutionLevel:e.resolutionLevel,pyramidLevelSizes:e.pyramidLevelSizes,triTable:this.triTableTexNode,potential:this.potentialTexNode,voxel:this.voxelTexNode,pyramid1:this.pyramid1TexNode,pyramid2:this.pyramid2TexNode,pyramid1Size:{width:t.pyramid[r].width,height:t.pyramid[r].height},pyramid2Size:{width:t.pyramid[a].width,height:t.pyramid[a].height}}}_maxMarchSlots(e){let t=e.backend?.device?.limits,a=Math.min(t?.maxStorageBufferBindingSize??134217728,t?.maxBufferSize??268435456);return 192*Math.floor(a/16/192)}_ensureMarchCapacity(e,t){if(this._marchBuffers!==null&&e<=this._marchCapacity)return!1;let a=Math.min(Math.max(t,Si),192*Math.ceil(1.5*e/192));if(this._marchBuffers!==null&&a<=this._marchCapacity)return!1;if(this._marchBuffers!==null)for(let r of[this._marchBuffers.positions,this._marchBuffers.normals,this._marchBuffers.colors]){let s=r.value;s&&this._retiredStorage.push(s)}return this._marchBuffers={positions:ft(a,"vec4"),normals:ft(a,"vec4"),colors:ft(a,"vec4")},this._marchCapacity=a,this._computeNode=null,!0}update(e,t,a){if(je.updates++,this._lastRenderer=t,a!==void 0&&(this._cullCamera=a),e._meshSdfBaked.size>0)for(let[b,M]of e._meshSdfBaked)M.owner!==this&&e._meshSdfBaked.delete(b);let r=Qh(e),s=t.backend?.isWebGPUBackend===!0;if(s&&e._meshSdfWanted.size>0&&this._meshBaker===null&&(this._meshBaker=(function(b,M){let S=new ts(192,48*Math.ceil(4),48);S.format=or,S.type=Xt,S.minFilter=Oe,S.magFilter=Oe,S.name="SplineShapeBlend.meshSdfAtlas";let C=c(M).mul(0),R=L(new ne(0,0,0)),k=L(0),E=L(new ne(1,1,1)),I=ft(3*Dl,"vec4"),D=j=>

vendor: 3,321 bytes, line 5

5I.element(j),H=U(()=>{let j=w(fa).toVar();B(j.x.greaterThanEqual(48).or(j.y.greaterThanEqual(48)).or(j.z.greaterThanEqual(48)),()=>{Qe()});let Z=j.div(47).mul(2).sub(1).mul(E).toVar(),$=c(1e30).toVar(),me=c(1e15).toVar();We(Dl,({i:ce})=>{B(c(ce).greaterThanEqual(k),()=>{sa()});let Me=N(c(ce).toVar()).mul(3).toVar(),fe=D(Me).xyz.toVar(),Te=D(Me.add(N(1))).xyz.toVar(),Be=D(Me.add(N(2))).xyz.toVar(),$e=Te.sub(fe).toVar(),Ge=Be.sub(fe).toVar(),Ye=Z.sub(fe).toVar(),Ue=q($e,Ye).toVar(),wt=q(Ge,Ye).toVar(),Yt=Z.sub(Te).toVar(),rt=q($e,Yt).toVar(),yt=q(Ge,Yt).toVar(),It=Z.sub(Be).toVar(),Re=q($e,It).toVar(),st=q(Ge,It).toVar(),De=w(0).toVar(),qt=rt.mul(st).sub(Re.mul(yt)).toVar(),bt=Re.mul(wt).sub(Ue.mul(st)).toVar(),Fe=Ue.mul(yt).sub(rt.mul(wt)).toVar();B(Ue.lessThanEqual(0).and(wt.lessThanEqual(0)),()=>{De.assign(fe)}).ElseIf(rt.greaterThanEqual(0).and(yt.lessThanEqual(rt)),()=>{De.assign(Te)}).ElseIf(st.greaterThanEqual(0).and(Re.lessThanEqual(st)),()=>{De.assign(Be)}).ElseIf(Fe.lessThanEqual(0).and(Ue.greaterThanEqual(0)).and(rt.lessThanEqual(0)),()=>{let ye=Ue.div(Ue.sub(rt));De.assign(fe.add($e.mul(ye)))}).ElseIf(bt.lessThanEqual(0).and(wt.greaterThanEqual(0)).and(st.lessThanEqual(0)),()=>{let ye=wt.div(wt.sub(st));De.assign(fe.add(Ge.mul(ye)))}).ElseIf(qt.lessThanEqual(0).and(yt.sub(rt).greaterThanEqual(0)).and(Re.sub(st).greaterThanEqual(0)),()=>{let ye=yt.sub(rt).div(yt.sub(rt).add(Re.sub(st)));De.assign(Te.add(Be.sub(Te).mul(ye)))}).Else(()=>{let ye=c(1).div(qt.add(bt).add(Fe)),it=bt.mul(ye),ma=Fe.mul(ye);De.assign(fe.add($e.mul(it)).add(Ge.mul(ma)))});let ze=Z.sub(De).toVar(),Ke=q(ze,ze).toVar();B(Ke.lessThan($),()=>{$.assign(Ke);let ye=_t($e,Ge),it=q(ze,ye).greaterThanEqual(0).select(c(1),c(-1));me.assign(Ea(Ke).mul(it))})});let ue=Q(E.x,Q(E.y,E.z));Vr(S,ra(j.add(R)),P(me.div(ue).add(C),0,0,0)).toStack()})(),K=Math.ceil(12),O=H.compute([K,K,K],[4,4,4]);return{atlas:S,slots:16,kernel:O,uniforms:{slotOrigin:R,triCount:k,boxHalf:E},setTriangles(j,Z){let $=I.value;$.array.set(j.subarray(0,12*Z)),$.needsUpdate=!0}}})(0,++this._ultraBuildSeq)),e.npart===0)return this._meshBaker!==null&&e._meshSdfWanted.size>0&&this._bakeNextMeshChild(e,t),void(e.geometry.drawRange.count=0);this.npartUniform.value=e.npart,this.spatialnUniform.value=e.spatialn,this.spanUniform.value=e.spatialPassUniforms.span.value,e.shapesDataTexture.value&&(this.shapesTex.value=e.shapesDataTexture.value);let i=!wh&&s,n=i&&!Sh&&e.ultraFieldResolution>0,l=n&&!zh&&(Rh||e.ultraFieldResolution>=512)?Math.min(Math.pow(e.ultraFieldResolution/4,3),Math.max((function(b){let M=b/4;return Math.min(M*M*M,Math.max(8192,16*M*M))})(e.ultraFieldResolution),this._ultraWantedPoolBricks,this.poolHint)):0,o=l>0&&!kh,u=this._maxMarchSlots(t),d=o?Math.min(Math.floor(u/64),Math.max((function(b){let M=b/4;return Math.min(262144,Math.max(2048,2*M*M))})(e.ultraFieldResolution),this._ultraWantedVertexBlocks,this.vertHint)):0,m=this._meshBaker!==null,h=e.needsRebuild||this.level!==e.resolutionLevel||this.spatialnAtBuild!==e.spatialn||this._cachedAtBuild!==i||this._ultraResAtBuild!==(n?e.ultraFieldResolution:0)||this._poolAtBuild!==l||this._vertBlocksAtBuild!==d||this._meshAtBuild!==m;if(h&&this._builtOnce)return this.wantsReplacement=!0,this.capacityHint=Math.max(this._marchCapacity,this._ultraWantedCapacity),this.poolHint=

5Math.max(this.poolHint,this._ultraWantedPoolBricks),void(this.vertHint=Math.max(this.vertHint,this._ultraWantedVertexBlocks));let f=i&&this._ensureMarchCapacity(Math.min(Math.max(u,Si),Math.max(e.geometry.drawRange.count,this.capacityHint,n?Math.max((function(b){return Math.max(Si,192*Math.ceil(16*b*b/192))})(e.ultraFieldResolution),this._ultraWantedCapacity):Si)),u);if(f&&this._builtOnce)return this.wantsReplacement=!0,this.capacityHint=Math.max(this._marchCapacity,this._ultraWantedCapacity),this.poolHint=Math.max(this.poolHint,this._ultraWantedPoolBricks),void(this.vertHint=Math.max(this.vertHint,this._ultraWantedVertexBlocks));let p=this._spatialTargetFor(e),_=n?null:this._targetsFor(e),y=h||f,g=n&&this._ultra!==null&&this._ultraResAtBuild===e.ultraFieldResolution&&!f&&this.level===e.resolutionLevel&&this.spatialnAtBuild===e.spatialn&&this._cachedAtBuild===i;if(y&&g)e.needsRebuild=!1,this._ultra.uniforms.bboxHalf.value=e.bboxSize/2,this._ultra.uniforms.bboxOffset.value=e.bboxOffset,this._ultraDrag&&(this._ultraDrag.uniforms.bboxHalf.value=e.bboxSize/2,this._ultraDrag.uniforms.bboxOffset.value=e.bboxOffset);else if(y){e.needsRebuild=!1;let b=this.spatialnAtBuild!==e.spatialn;this.level=e.resolutionLevel,this.spatialnAtBuild=e.spatialn,this._meshAtBuild=m,(b||this.spatialMaterial===null)&&(this.spatialMaterial?.dispose(),this.spatialMaterial=this._buildSpatialMaterial(e)),this.spatialTexNode.value=p.texture;let M=this._ultra,S=this._ultraDrag;if(this._ultra=null,this._ultraDrag=null,this._lastDispatched=null,this._refinePending=!1,n){let k=e.ultraFieldResolution,E=M!==null&&this._ultraResAtBuild===k;if(E&&!f)this._ultra=M,M.uniforms.bboxHalf.value=e.bboxSize/2,M.uniforms.bboxOffset.value=e.bboxOffset,this._ultraDrag=S,S&&(S.uniforms.bboxHalf.value=e.bboxSize/2,S.uniforms.bboxOffset.value=e.bboxOffset);else{let I=E&&l===0&&!M.sparse;M&&!I&&this._ultraRetired.push(M.sdfTexture,M.colorTexture,M.coarseTexture),o&&this._drawIndex===null&&(this._drawIndex=ft(this._marchCapacity,"uint")),o&&this._vertexBuffers===null&&(this._vertexBuffers={positions:ft(64*d,"vec4"),normals:ft(64*d,"vec4"),colors:ft(64*d,"vec4")}),this._ultra=Eu({resolution:k,colorResolution:k/2,bboxHalf:e.bboxSize/2,bboxOffset:e.bboxOffset,capacity:this._marchCapacity,env:this._fieldEnv(e,2/(k/2)),npart:this.npartUniform,triTable:this.triTableTexNode,numTrisTable:hn().numTrisTable,buffers:o?this._vertexBuffers:this._marchBuffers,buildSeq:++this._ultraBuildSeq,sparseStorage:l>0?{poolBricks:l,meshlet:o?{drawIndex:this._drawIndex,vertexBlocks:d}:void 0}:void 0,reuseTextures:I?{sdfTexture:M.sdfTexture,colorTexture:M.colorTexture,coarseTexture:M.coarseTexture}:void 0}),this._poolAtBuild=l,this._vertBlocksAtBuild=d;let D=Ch&&k>=128&&!o?k/2:0;S&&(!E||D===0)&&this._ultraRetired.push(S.sdfTexture,S.colorTexture,S.coarseTexture),D>0&&(this._ultraDrag=Eu({resolution:D,colorResolution:D/2,bboxHalf:e.bboxSize/2,bboxOffset:e.bboxOffset,capacity:this._marchCapacity,env:this._fieldEnv(e,2/(D/2)),npart:this.npartUniform,triTable:this.triTableTexNode,numTrisTable:hn().numTrisTable,buffers:this._marchBuffers,buildSeq:++this._ultraBuildSeq,reuseTextures:E&&S?{sdfTexture:S.sdfTexture,colorTexture:S.colorTexture,coarseTexture:S.coarseTexture}:void 0}))}this._ultraResAtBuild=k}else{M&&this._ultraRetired.push(M.sdfTexture,M.colorTexture,M.coarseTexture),S&&this._ultraRetired.push(S.sdfTexture,S.colorTexture,S.coarseTexture),(this._legacyMaterialsLevel!==e.resolutionLevel||b||this.potentialMaterial===null||this.voxelMaterial===null)&&(this.potentialMaterial?.dispose(),this.voxelMaterial?.dispose(),this.potentialMaterial=this._buildPotentialMaterial(e),this.voxelMaterial=this._buildVoxelMaterial(e),this._legacyMaterialsLevel=e.resolutionLevel),this.potentialTexNode.value=_.potential.texture,this.voxelTexNode.value=_.voxel.textures[0];let k=e.pyramidLevelSizes.length%2==0?0:1,E=1-k;this.pyramid1TexNode.value=_.pyramid[E].texture,this.pyramid2TexNode.value=_.pyramid[k].texture,this._ultraResAtBuild=0}let C=e.material;C.defines===void 0&&(C.defines={}),Mr.includes("nomat")||(C.defines.SHAPEBLEND=e.resolutionLevel),Mr.includes("nomat")||C.setShapeBlendResources?.(n?{resolutionLevel:e.resolutionLevel,pyramidLevelSizes:e.pyramidLevelSizes,triTable:this.triTableTexNode,potential:this.potentialTexNode,voxel:this.voxelTexNode,pyramid1:this.pyramid1TexNode,pyramid2:this.pyramid2TexNode,pyramid1Size:{width:1,height:1}

5,pyramid2Size:{width:1,height:1},cached:o?{...this._vertexBuffers,drawIndex:this._drawIndex}:this._marchBuffers}:{...this._marchResources(e),cached:i?this._marchBuffers:void 0}),this._cachedAtBuild=i;let R=`${e.resolutionLevel}:${this._marchCapacity}`;this._computeNodeKey!==R&&(this._computeNode=null,this._computeNodeKey=R)}if(y)return this._builtOnce=!0,void(this._computeDirty=!0);this._meshBaker!==null&&e._meshSdfWanted.size>0&&this._bakeNextMeshChild(e,t);let x=this._passesRenderer!==t,v=r&&!Mh&&!this._computeDirty&&!x&&!e._fieldDirtyFull;if(!(r||this._computeDirty||x)){if(n&&this._refinePending&&this._ultra!==null&&performance.now()-this._lastFieldChangeMs>250)return this._refinePending=!1,this._passesRenderer=t,je.refines++,void this._runUltra(e,t,!1,this._ultra);if(n&&Ol&&this._ultra!==null&&this._ultra.meshlet&&this._lastDispatched===this._ultra&&!this._ultraReadbackPending&&this._updateCullUniforms(e,this._ultra)&&(!this._hasGatherMVP||!this._lastGatherMVP.equals(this._ultra.uniforms.cullMVP.value))){this._lastGatherMVP.copy(this._ultra.uniforms.cullMVP.value),this._hasGatherMVP=!0,je.regathers++;let b=t;return b.compute(this._ultra.kernels.zero),Ul||b.compute(this._ultra.kernels.clearDraw),b.compute(this._ultra.kernels.gather),this._ultra.kernels.stats&&b.compute(this._ultra.kernels.stats),void this._runUltraReadback(e,t)}if(!e.drawRangeNeedsForceUpdate)return void je.skips++;if(n)return void(this._ultraReadbackPending||this._runUltraReadback(e,t))}if(this._passesRenderer=t,Mr.includes("none")&&je.readbacksResolved>0)return void(this._computeDirty=!1);let V=t.getRenderTarget(),T=t.getMRT(),z=t.autoClear;if(t.setMRT(null),t.autoClear=!1,je.lastPass="spatial",t.setRenderTarget(p),tr.material=this.spatialMaterial,tr.render(t),n){t.autoClear=z,t.setRenderTarget(V),t.setMRT(T);let b=this._ultraDrag!==null&&r&&!this._computeDirty;return this._refinePending=b,this._lastFieldChangeMs=performance.now(),this._runUltra(e,t,v,b?this._ultraDrag:this._ultra),void(this._computeDirty=!1)}return Mr==="spatial"&&je.readbacksResolved>0?(t.autoClear=z,t.setRenderTarget(V),t.setMRT(T),void(this._computeDirty=!1)):(je.lastPass="potential",t.setRenderTarget(_.potential),tr.material=this.potentialMaterial,tr.render(t),Mr==="potential"&&je.readbacksResolved>0?(t.autoClear=z,t.setRenderTarget(V),t.setMRT(T),void(this._computeDirty=!1)):(je.lastPass="voxel",t.setRenderTarget(_.voxel),tr.material=this.voxelMaterial,tr.render(t),Mr==="voxel"&&je.readbacksResolved>0?(t.autoClear=z,t.setRenderTarget(V),t.setMRT(T),void(this._computeDirty=!1)):(je.lastPass="pyramid",this._renderPyramid(e,t,_.voxel,_.pyramid),t.autoClear=z,t.setRenderTarget(V),t.setMRT(T),je.lastPass="march",i&&(this._computeNode===null&&(this._computeNode=(function(b,M,S){let C=gh(b);return U(()=>{let{position:R,normal:k,color:E}=C(Kt.toFloat());M.positions.element(Kt).assign(P(R,1)),M.normals.element(Kt).assign(P(k,0)),M.colors.element(Kt).assign(E)})().compute(S)})(this._marchResources(e),this._marchBuffers,this._marchCapacity)),t.compute(this._computeNode),je.computes++),void(this._computeDirty=!1))))}_bakeNextMeshChild(e,t){let a=this._meshBaker;for(let[r,s]of e._meshSdfWanted){let i=Zh(s);if(this._meshBakeFailed.get(r)===i)continue;let n=this._meshSlots.get(r);if(n===void 0){if(this._meshSlots.size>=a.slots)for(let u of this._meshSlots.keys())!e._meshSdfBaked.has(u)&&!e._meshSdfWanted.has(u)&&(this._meshSlots.delete(u),this._meshBakeFailed.delete(u));if(this._meshSlots.size>=a.slots){this._meshWarnedFull||(this._meshWarnedFull=!0,console.warn(`Spline shape blend: more than ${a.slots} distinct mesh children â the extra meshes are left out of the blend.`));continue}let o=new Set(this._meshSlots.values());for(n=0;o.has(n);)n++;this._meshSlots.set(r,n)}let l=_g(s);if(l!==null)return a.setTriangles(l.data,l.triCount),a.uniforms.slotOrigin.value.copy(xg(n)),a.uniforms.triCount.value=l.triCount,a.uniforms.boxHalf.value.copy(l.boxHalf),t.compute(a.kernel),e._meshSdfBaked.set(r,{slot:n,boxHalf:l.boxHalf.clone(),posVersion:i,owner:this}),void e._meshSdfWanted.delete(r);this._meshBakeFailed.set(r,i)}}_updateCullUniforms(e,t){if(!t.meshlet)return!1;let a=this._cullCamera;return Ol&&a&&a.projectionMatrix!==void 0&&a.matrixWorldInverse!==void 0?(t.uniforms.cullMVP.value.multiplyMatrices(W.unjitteredProjection.value,a.matrixWorldInverse).multiply(e.matrixWorld),t.uniforms.cullEnabled.value=1,!0):(t.uniforms.cullEnabled.value=0,!1)}_runUltra(e,t,a,r){let s=t;je.lastPass="ultra-kernels",je.lastDispatchRes=r.resolution,je.marchPositions=(r.meshlet?this._vertexBuffers:this._marchBuffers).positions.value,this._lastDispatched=r;let i=r.resolution,n=i/4,l=2/(i-1);r.uniforms.activeThreshold.value=Vh?1e30:(3*Math.sqrt(3)+4)*l+.25*e._maxBlendK;let o=r.meshlet&&!Ah;r.meshlet&&(r.uniforms.adaptCos.value=o?Tg:2);let u=0,d=0,m=0,h=n,f=n,p=n;if(a){let g=r.uniforms.activeThreshold.value+2/(e.spatialDivisions-1)+4/(i-1),x=T=>Math.floor(.5*(T+1)*(i-1)/4),v=T=>Math.min(n-1,Math.max(0,x(T))),V=T=>Math.min(n,Math.max(1,x(T)+1));if(u=v(e._fieldDirtyMin.x-g),d=v(e._fieldDirtyMin.y-g),m=v(e._fieldDirtyMin.z-g),h=V(e._fieldDirtyMax.x+g)-u,f=V(e._fieldDirtyMax.y+g)-d,p=V(e._fieldDirtyMax.z+g)-m,je.fieldsWindowed++,o){let T=Math.min(n,u+h+1),z=Math.min(n,d+f+1),b=Math.min(n,m+p+1);u=Math.max(0,u-1),d=Math.max(0,d-1),m=Math.max(0,m-1),h=T-u,f=z-d,p=b-m}}else je.fieldsFull++;je.lastWindowBricks=h*f*p,r.uniforms.windowOrigin.value.set(u,d,m),r.uniforms.windowSize?.value.set(h,f,p);let _=u===0&&d===0&&m===0&&h===n&&f===n&&p===n,y=[Math.ceil(h/4),Math.ceil(f/4),Math.ceil(p/4)];r.meshlet&&this._updateCullUniforms(e,r)&&(this._lastGatherMVP.copy(r.uniforms.cullMVP.value),this._hasGatherMVP=!0),s.compute(r.kernels.zero),Ul||s.compute(r.meshlet?r.kernels.clearDraw:r.kernels.clear),r.needsInit&&r.kernels.init&&(s.compute(r.kernels.init),r.needsInit=!1),s.compute(r.kernels.coarse,y),r.kernels.release&&s.compute(r.kernels.release,y),r.kernels.alloc&&s.compute(r.kernels.alloc,y),r.kernels.meshRelease&&s.compute(r.kernels.meshRelease,y),r.sparse?_?s.compute(r.kernels.sdf):s.compute(r.kernels.sdfWindow,[h,f,p]):s.

vendor: 25,283 bytes, lines 5-32

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a=this._lastDispatched??this._ultra,r=t;this._ultraReadbackPending=!0,je.readbackPending=!0,r.getArrayBufferAsync(a.counterAttribute).then(s=>{if(this._ultraReadbackPending=!1,je.readbackPending=!1,this.retired)return;this._disposeRetired();let i=new Uint32Array(s),n=a.meshlet?Math.floor(i[3]/3):i[0];if(je.readbacksResolved++,je.lastTotal=n,a.sparse&&i.length>2&&i[2]>0&&(this._ultraWantedPoolBricks=Math.ceil(1.5*Math.max(i[1],a.poolBricks)),this._computeDirty=!0),a.meshlet&&i.length>5&&i[5]>0){let o=Math.min(24*i[4],this._maxMarchSlots(t));o>this._marchCapacity&&(this._ultraWantedCapacity=Math.max(this._ultraWantedCapacity,o),this._computeDirty=!0)}if(a.meshlet&&i.length>7&&i[7]>0){let o=Math.min(Math.ceil(1.5*i[6]),Math.floor(this._maxMarchSlots(t)/64));o>a.vertexBlocks&&(this._ultraWantedVertexBlocks=Math.max(this._ultraWantedVertexBlocks,o),this._computeDirty=!0)}let l=Math.floor(this._marchCapacity/3);if(e.geometry.drawRange.count=3*Math.min(Math.ceil(1.25*n),l),e.markSceneShadowsDirty(),e.drawRangeNeedsForceUpdate=!1,this._ultraReadbackQueued&&(this._ultraReadbackQueued=!1,this._runUltraReadback(e,t)),n>l){let o=Math.min(3*n,this._maxMarchSlots(t));o>this._marchCapacity&&(this._ultraWantedCapacity=o,this._computeDirty=!0)}}).catch(()=>{je.readbackErrors++,this._ultraReadbackPending=!1,je.readbackPending=!1})}_renderPyramid(e,t,a,r){let s=e.pyramidLevelSizes,i=s.length-1-1;Oi.value=0,Ss.value=0;for(let l=i;l>=0;l--){let o=l%2==i%2?r[0]:r[1],u=l===i?a:l%2==i%2?r[1]:r[0];Fs.value=u.textures.length>1?u.textures[1]:u.texture,vh.value=u.width,bh.value=u.height;let d=s[l];l===2&&e.resolutionLevel%2!=0&&(d=3),Th.value=d,o.viewport.set(Ss.value,0,d,d),t.setRenderTarget(o),tr.material=bg(),tr.render(t),o.viewport.set(0,0,o.width,o.height);let m=Oi.value;Oi.value=Ss.value,Ss.value=m,l<i&&(Ss.value+=s[l+1])}je.lastPass="pyramid-readback";let n=s.length%2==0?0:1;t.readRenderTargetPixelsAsync(r[n],r[n].width-1,0,1,1).then(l=>{let o=l[0];je.readbacksResolved++,je.lastTotal=o,!this.retired&&(this._disposeRetired(),(3*o>e.geometry.drawRange.count||e.drawRangeNeedsForceUpdate)&&(e.geometry.drawRange.count=3*Math.floor(1.2*o)),e.drawRangeNeedsForceUpdate=!1,this._marchBuffers!==null&&e.geometry.drawRange.count>this._marchCapacity&&(this._computeDirty=!0))}).catch(()=>{})}dispose(){for(let s of[...this.spatialTargets,...this.potentialTargets,...this.voxelTargets,...this.pyramidTargets.flat()])s?.dispose();this.spatialMaterial?.dispose(),this.potentialMaterial?.dispose(),this.voxelMaterial?.dispose();let e=this._lastRenderer?.backend?.attributeUtils,t=s=>{if(e&&s!==null)for(let i of[s.positions,s.normals,s.colors]){let n=i.value;n&&e.destroyAttribute(n)}},a=s=>{if(s!==null){for(let i of Object.values(s.kernels))i?.dispose?.();if(e)for(let i of 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ne,this._hasPrevBone=!1,this._renderer=null,this.initialPos=ft(Fr,"vec4"),this.rootColors=ft(Tn,"vec4"),this.positions=ft(Fr,"vec4"),this.positionsPrev=ft(Fr,"vec4"),this.positionsPrevPrev=ft(Fr,"vec4"),this.tangents=ft(Fr,"vec4"),this.restLengths=ft(Fr,"float"),this.vspQuats=ft(Tn,"vec4"),this.vspTrans=ft(Tn,"vec4"),this.kIntegrate=this._buildIntegrate(),this.kStrandLevel=this._buildStrandLevel(),this.kVsp=this._buildVsp(),this.kLocalShape=this._buildLocalShape(),this.kLengthWind=this._buildLengthWind(),this.kClump=this._buildClump(),this.kRigidFollow=this._buildRigidFollow(),this.ribbonMaterial=this._buildRibbonMaterial(),this.scalpMaterial=this._buildScalpMaterial()}boneQuatNode(){return this.uBoneQuat}boneTransNode(){return this.uBoneTrans}_buildIntegrate(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumVerts),()=>{Qe()});let t=e.div(ta).toVar(),a=e.sub(t.mul(ta)).toVar(),r=this.boneQuatNode(),s=this.boneTransNode(),i=this.initialPos.element(e).toVar(),n=P(Da(r,i.xyz).add(s),i.w).toVar(),l=this.positions.element(e).toVar(),o=this.positionsPrev.element(e).toVar(),u=o.toVar();B(this.uReset.greaterThan(.5),()=>{l.assign(n),u.assign(n)});let d=n.toVar();B(l.w.greaterThan(0),()=>{let m=c(Lr),h=Ql(this.uDamping.negate().mul(m).mul(60)),f=l.xyz.add(l.xyz.sub(u.xyz).mul(h)).add(w(0,-1,0).mul(this.uGravity).mul(m).mul(m));d.assign(P(f,l.w))}),B(this.uGlobalStiffness.greaterThan(0).and(this.uGlobalRange.greaterThan(0)).and(d.w.greaterThan(0)).and(a.toFloat().lessThan(this.uGlobalRange.mul(ta))),()=>{let m=e.sub(a),h=this.initialPos.element(m),f=ae(Da(r,h.xyz)).y.mul(.5).add(.5),p=this.uGlobalStiffness.mul(Ma(Q(f,0),this.uStiffnessFalloff)),_=n.xyz.sub(d.xyz).mul(p);d.assign(P(d.xyz.add(_),d.w))}),B(this.uKink.greaterThan(0).and(d.w.greaterThan(0)),()=>{let m=a.toFloat().div(ta),h=t.sub(t.div(256).mul(256)).toFloat().mul(.0245),f=m.mul(this.uKinkFreq).mul(6.2831853).add(h),p=this.uKink.mul(m).mul(.15).mul(this.uUnitScale),_=ae(n.xyz.sub(s)).toVar(),y=w(0).toVar();B(de(_.y).lessThan(.99),()=>{y.assign(ae(_t(_,w(0,1,0))))}).Else(()=>{y.assign(ae(_t(_,w(1,0,0))))});let g=ae(_t(_,y)),x=y.mul(Zt(f)).mul(p).add(g.mul(ha(f.mul(1.3).add(h))).mul(p).mul(.7));d.assign(P(d.xyz.add(x),d.w))}),this.positionsPrevPrev.element(e).assign(o),this.positionsPrev.element(e).assign(l),this.positions.element(e).assign(d)})().compute(pa[0],pa)}_buildStrandLevel(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumStrands),()=>{Qe()});let t=e.mul(ta).toVar(),a=this.positionsPrevPrev.element(t.add(1)),r=this.positionsPrev.element(t),s=this.positionsPrev.element(t.add(1)),i=this.positions.element(t),n=this.positions.element(t.add(1)),l=s.xyz.sub(r.xyz),o=n.xyz.sub(i.xyz),u=l.div(Q(we(l),1e-7)),d=o.div(Q(we(o),1e-7)),m=Bu(u,d).toVar(),h=i.xyz.sub(Da(m,r.xyz)),f=this.uVspCoeff.toVar(),p=we(n.xyz.sub(s.xyz.mul(2)).add(a.xyz));B(p.greaterThan(this.uVspThreshold),()=>{f.assign(1)}),this.vspQuats.element(e).assign(m),this.vspTrans.element(e).assign(P(h,f))})().compute(pa[0],pa)}_buildVsp(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumVerts),()=>{Qe()});let t=e.div(ta).toVar(),a=e.sub(t.mul(ta)).toVar();B(a.lessThan(2),()=>{Qe()});let r=this.vspQuats.element(t),s=this.vspTrans.element(t),i=s.w,n=this.positions.element(e).toVar(),l=this.positionsPrev.element(e).toVar(),o=u=>P(u.xyz.mul(c(1).sub(i)).add(Da(r,u.xyz).add(s.xyz).mul(i)),u.w);this.positions.element(e).assign(o(n)),this.positionsPrev.element(e).assign(o(l))})().compute(pa[0],pa)}_buildLocalShape(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumStrands),()=>{Qe()});let t=e.mul(ta).toVar(),a=xe(this.uLocalStiffness,.95).mul(.5),r=this.boneQuatNode();We(Ba-1,({i:s})=>{let i=t.add(s).add(1).toVar(),n=this.positions.element(i).toVar(),l=this.positions.element(i.add(1)).toVar(),o=this.positions.element(i.sub(1)),u=Da(r,this.initialPos.element(i).xyz),d=Da(r,this.initialPos.element(i.add(1)).xyz),m=Da(r,this.initialPos.element(i.sub(1)).xyz),h=n.xyz.sub(o.xyz),f=d.sub(u),p=u.sub(m),_=Bu(p.div(Q(we(p),1e-7)),h.div(Q(we(h),1e-7))),y=Da(_,f).add(n.xyz).sub(l.xyz).mul(a);B(n.w.greaterThan(0),()=>{n.assign(P(n.xyz.sub(y),n.w))}),B(l.w.greaterThan(0),()=>{l.assign(P(l.xyz.add(y),l.w))}),this.positions.element(i).assign(n),this.positions.element(i.add(1)).assign(l)})})().compute(pa[0],pa)}_buildLengthWind(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumStrands),()=>{Qe()});let t=e.mul(ta).toVar();B(this.uHasWind.greaterThan(.5),()=>{let a=e.sub(e.div(20).mul(20)).toFloat().div(20),r=this.uWind0.mul(a).add(this.uWind1.mul(c(1).sub(a))).add(this.uWind2.mul(a)).add(this.uWind3.mul(c(1).sub(a))).toVar();We(Ba-2,({i:s})=>{let i=t.add(s).add(2).toVar(),n=this.positions.element(i).toVar(),l=this.positions.element(i.add(1)),o=n.xyz.sub(l.xyz),u=_t(_t(o,r),o).negate();n.assign(P(n.xyz.add(u.mul(Lr).mul(.1)),n.w)),this.positions.element(i).assign(n)})}),We(5,()=>{We(Ba,({i:a})=>{let r=t.add(a).toVar(),s=this.positions.element(r).toVar(),i=this.positions.element(r.add(1)).toVar(),n=this.restLengths.element(r),l=i.xyz.sub(s.xyz),o=Q(we(l),1e-7),u=c(1).sub(n.div(o)),d=l.mul(u),m=s.w.greaterThan(0),h=i.w.greaterThan(0),f=m.select(h.select(c(.5),c(1)),c(0)),p=h.select(m.select(c(.5),c(1)),c(0));s.assign(P(s.xyz.add(d.mul(f)),s.w)),i.assign(P(i.xyz.sub(d.mul(p)),i.w)),this.positions.element(r).assign(s),this.positions.element(r.add(1)).assign(i)})}),We(Ba,({i:a})=>{let r=t.add(a).add(1).toVar(),s=this.positions.element(r.sub(1)),i=this.positions.element(r).toVar(),n=i.xyz.sub(s.xyz),l=Q(we(n),1e-7),o=this.restLengths.element(r.sub(1));B(l.greaterThan(o),()=>{i.assign(P(s.xyz.add(n.div(l).mul(o)),i.w)),this.positions.element(r).assign(i)})}),We(ta,({i:a})=>{let r=t.add(a).toVar(),s=a.equal(ta-1).select(r.sub(1),r).toVar(),i=ae(this.positions.element(s.add(1)).xyz.sub(this.positions.element(s).xyz));this.tangents.element(r).assign(P(i,0))})})().compute(pa[0],pa)}_buildClump(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumStrands),()=>{Qe()});let t=this.uClumpSize.toVar(),a=e.div(t).mul(t).toVar();B(e.equal(a),()=>{Qe()}),B(a.greaterThanEqual(this.uNumStrands),()=>{Qe()});let r=e.mul(ta).toVar(),s=a.mul(ta).toVar();We(Ba,({i})=>{let n=i.add(1).toVar(),l=n.toFloat().div(Ba),o=this.uClumpStrength.mul(Ma(l,c(1).div(Q(this.uClumpTipScale,.5)))),u=r.add(n).toVar(),d=this.positions.element(u).toVar(),m=this.positions.element(s.add(n));d.assign(P(X(d.xyz,m.xyz,o),d.w)),this.positions.element(u).assign(d)})})().compute(pa[0],pa)}_buildRigidFollow(){return U(()=>{let e=N(Kt).toVar();B(e.greaterThanEqual(this.uNumVerts),()=>{Qe()});let t=this.uDeltaQuat,a=this.uPrevBoneTrans,r=this.boneTransNode(),s=n=>{let l=n.element(e).toVar();l.assign(P(Da(t,l.xyz.sub(a)).add(r),l.w)),n.element(e).assign(l)};s(this.positions),s(this.positionsPrev),s(this.positionsPrevPrev);let i=this.tangents.element(e).toVar();i.assign(P(Da(t,i.xyz),0)),this.tangents.element(e).assign(i)})().compute(pa[0],pa)}pastelNoise(e){let t=e.sub(this.boneTransNode()).mul(this.uNoiseScale),a=Zn(t).mul(.5).add(.5),r=Zn(t.add(w(31.7,17.3,53.1))).mul(.5).add(.5),s=Zn(t.mul(.7).add(w(71.9,11.2,43.8))).mul(.5).add(.5),i=X(this.uNoiseA,this.uNoiseB,a);return i=X(i,this.uNoiseC,r.mul(.6)),i=X(i,this.uNoiseD,s.mul(.25)),i}_buildRibbonMaterial(){let e=mt("vec3","vHairTangent"),t=mt("vec3","vHairNormal"),a=mt("vec2","vHairUv"),r=mt("float","vHairRand"),s=mt("vec3","vHairInherit"),i=new Fu(new wg(e,this.uSpecPow,this.uSpecInt,this.uDiffInt,this.uAmbInt));i.name="SplineHairRibbons",i.userData.hairShadowVariant="texel-floor-v6",i.transparent=!1,i.depthTest=!0,i.depthWrite=!0,i.side=is;let n=o=>U(()=>{let u=N(Kt).toVar(),d=u.div(Ba).toVar(),m=u.sub(d.mul(Ba)).toVar(),h=d.mul(ta).add(m).toVar(),f=N(Ni).toVar(),p=f.bitAnd(1).toFloat().toVar(),_=f.shiftRight(1).bitAnd(1).toFloat().toVar(),y=this.positions.element(h).xyz.toVar(),g=this.positions.element(h.add(1)).xyz.toVar(),x=this.tangents.element(h).xyz,v=this.tangents.element(h.add(1)).xyz,V=X(y,g,_).toVar(),T=X(x,v,_).toVar(),z=ae(pr.sub(V)),b=_t(T,z).toVar(),M=we(b).toVar();b.assign(M.greaterThan(1e-7).select(b.div(M),w(1,0,0)));let S=m.toFloat().div(Ba),C=m.add(1).toFloat().div(Ba),R=X(S,C,_).toVar(),k=this.uWidth.mul(c(1).sub(R.mul(this.uTipFade))).toVar(),E=o?(()=>{let j=this.uShadowTexelWorld,Z=j.greaterThan(0).select(j.mul(1.5).clamp(c(2),c(8)),c(0));return Q(Z.sub(k),0).toVar()})():null;E&&k.addAssign(E);let I=p.mul(2).sub(1),D=V.add(b.mul(k).mul(I)).toVar();E&&D.assign(D.sub(z.mul(E)));let H=this.positionsPrev.element(h).xyz,K=this.positionsPrev.element(h.add(1)).xyz;ql.assign(X(H,K,_).add(b.mul(k).mul(I)));let O=Ae(Zt(d.toFloat().mul(12.9898)).mul(43758.5453));return r.assign(O),s.assign(this.rootColors.element(d).xyz),e.assign(T),t.assign(ae(z.sub(T.mul(q(T,z))))),a.assign(A(p,R)),D}),l=U(()=>{let o=a.y,u=X(this.uHairRoot,this.uHairMid,xe(o.mul(2),1)),d=o.lessThan(.5).select(u,X(this.uHairMid,this.uHairTip,o.sub(.5).mul(2))).toVar(),m=s.mul(X(this.uShadeRoot,this.uShadeTip,o));d.assign(this.uColorSource.greaterThan(.5).select(m,d)),d.assign(X(d,this.pastelNoise(Ca),this.uNoiseMixHair));let h=c(1).sub(de(a.x.sub(.5)).mul(2));return c(1).sub(o.mul(this.uTipFade)).mul(Ma(Q(h,0),.5)).toVar().lessThan(.25).discard(),r.greaterThanEqual(this.uOpacity).discard(),P(d,1)});return i.positionNode=n(!1)(),i.castShadowPositionNode=n(!0)(),i.normalNode=t,i.colorNode=l(),i.needsUpdate=!0,i}_buildScalpMaterial(){let e=new Fu(new Sg);e.name="SplineHairScalp";let t=U(()=>{let a=X(this.uHeadColor,this.pastelNoise(Ca),this.uNoiseMixHead);return P(a,1)});return e.colorNode=t(),e.needsUpdate=!0,e}update(e,t){let a=t;if(a.backend?.isWebGPUBackend!==!0||(this._renderer=a,e.visible===!1))return;if(!this._armed){this._armed=!0;let l=e.ribbonMesh.material;e.ribbonMesh.material=this.ribbonMaterial,l.dispose?.();let o=e.scalpMesh.material;e.scalpMesh.material=this.scalpMaterial,o.dispose?.(),e.ribbonMesh.visible=!0}e.checkDataDrift();let r=e.activeGuideStrands,s=r*ta;e.generation!==this._uploadedGeneration&&(this._uploadedGeneration=e.generation,this.initialPos.value.array.set(e.roots.initialPositions),this.initialPos.value.needsUpdate=!0,this.restLengths.value.array.set(e.roots.restLengths),this.restLengths.value.needsUpdate=!0,this.rootColors.value.array.set(e.roots.rootColors),this.rootColors.value.needsUpdate=!0,e.ribbonMesh.geometry.instanceCount=r*Ba,e.resetRequested=!0),this._syncUniforms(e),e.boneTransform(ar,Mi),this.uBoneQuat.value.set(ar.x,ar.y,ar.z,ar.w),this.uBoneTrans.value.copy(Mi);let i=this._hasPrevBone&&(Math.abs(this._prevBoneQuat.dot(ar))<.9999995||this._prevBonePos.distanceToSquared(Mi)>1e-8),n=Math.floor(e.pendingSimSeconds/Lr);n>po&&(n=po),e.pendingSimSeconds=Math.max(0,Math.min(e.pendingSimSeconds-n*Lr,Lr)),e.resetRequested&&n<1&&(n=1),n<1&&i&&(Rs.copy(this._prevBoneQuat).invert().premultiply(ar),this.uDeltaQuat.value.set(Rs.x,Rs.y,Rs.z,Rs.w),this.uPrevBoneTrans.value.copy(this._prevBonePos),this._dispatch(a,this.kRigidFollow,s));for(let l=0;l<n;l++){this.uReset.value=e.resetRequested&&l===0?1:0,e.simTime+=Lr,this._updateWind(e),this._dispatch(a,this.kIntegrate,s),this._dispatch(a,this.kStrandLevel,r),this._dispatch(a,this.kVsp,s);for(let o=0;o<2;o++)this._dispatch(a,this.kLocalShape,r);this._dispatch(a,this.kLengthWind,r),e.data.clumpStrength>.001&&this._dispatch(a,this.kClump,r)}n>0&&(e.resetRequested=!1),this._prevBoneQuat.copy(ar),this._prevBonePos.copy(Mi),this._hasPrevBone=!0}_dispatch(e,t,a){t.count=a,e.compute(t)}_updateWind(e){let t=e.data,a=Math.max(e.roots.unitScale,.001),r=t.windStrength/a;this.uHasWind.value=t.windStrength>.001?1:0;let s=.7*e.simTime,i=Math.sin(s)*r,n=Math.cos(s)*r*.5;this.uWind0.value.set(i,0,n),this.uWind1.value.set(.7*i,.5*r,1.2*n),this.uWind2.value.set(.3*-i,0,.5*n),this.uWind3.value.set(.5*i,-.3*r,.8*-n)}_shadowTexelWorld(e){let t=e;for(;t.parent;)t=t.parent;let a=t;if(!a?.traverse)return 0;let r=0;return a.traverse(s=>{let i=s;if(i.isDirectionalLight!==!0||i.castShadow!==!0||i.visible===!1)return;let n=i.shadow?.camera,l=i.shadow?.mapSize?.x??0;typeof n?.right!="number"||typeof n?.left!="number"||l<=0||(r=Math.max(r,(n.right-n.left)/l))}),r}_syncUniforms(e){let t=e.data,a=e.roots.unitScale;this.uNumStrands.value=e.activeGuideStrands,this.uNumVerts.value=e.activeGuideStrands*ta,this.uDamping.value=t.damping,this.uLocalStiffness.value=t.localStiffness,this.uGlobalStiffness.value=t.globalStiffness,this.uGlobalRange.value=t.globalRange,this.uStiffnessFalloff.value=t.stiffnessFalloff,this.uGravity.value=t.gravity*a,this.uVspCoeff.value=t.vspCoefficient,this.uVspThreshold.value=.5*a,this.uKink.value=t.kink,this.uKinkFreq.value=t.kinkFrequency,this.uUnitScale.value=a,this.uClumpStrength.value=t.clumpStrength,this.uClumpSize.value=Math.max(1,Math.round(t.clumpSize)),this.uClumpTipScale.value=t.clumpTipScale;let r=(i,n)=>{i.value.setRGB(n.r,n.g,n.b,Yl)};r(this.uHairRoot,t.hairRootColor),r(this.uHairMid,t.hairMidColor),r(this.uHairTip,t.hairTipColor),r(this.uHeadColor,t.headColor),r(this.uNoiseA,t.noiseColorA),r(this.uNoiseB,t.noiseColorB),r(this.uNoiseC,t.noiseColorC),r(this.uNoiseD,t.noiseColorD);let s=t.noiseEnabled?1:0;this.uNoiseScale.value=t.noiseScale/Math.max(a,.001),this.uNoiseMixHair.value=t.noiseMixHair*s,this.uNoiseMixHead.value=t.noiseMixHead*s,this.uWidth.value=.003*t.hairWidth*Rc*e.widthWorldScale,this.uShadowTexelWorld.value=this._shadowTexelWorld(e),this.uColorSource.value=t.hairColorSource==="object"&&t.headShape==="object"&&t.baseObjectId?1:0,this.uShadeRoot.value=t.hairShadeRoot??.6,this.uShadeTip.value=t.hairShadeTip??1.15,this.uSpecPow.value=t.specularPower,this.uSpecInt.value=t.specularIntensity,this.uDiffInt.value=t.diffuseIntensity,this.uAmbInt.value=t.ambientIntensity,this.uOpacity.value=t.opacity,this.uTipFade.value=t.tipFade}dispose(){for(let t of[this.kIntegrate,this.kStrandLevel,this.kVsp,this.kLocalShape,this.kLengthWind,this.kClump,this.kRigidFollow])t.dispose();this.ribbonMaterial.dispose(),this.scalpMaterial.dispose();let e=this._renderer?.backend?.attributeUtils;if(e)for(let t of[this.initialPos,this.rootColors,this.positions,this.positionsPrev,this.positionsPrevPrev,this.tangents,this.restLengths,this.vspQuats,this.vspTrans])e.destroyAttribute(t.value);this._renderer=null}},Ci=new WeakMap,Ri=[];Vc(e=>(function(t){let a=Ci.get(t);return a===void 0&&(a=new Vg,Ci.set(t,a)),a})(e)),Mc({release:e=>(function(t){let a=Ci.get(t);a!==void 0&&(Ci.delete(t),Ri.push(a))})(e),drainRetired:function(){let e=Ri.length;if(e>0){for(let t of Ri)t.dispose();Ri.length=0}return e}});var Gl=`
6const PI: f32 = 3.14159265358979323846;
7
8const TRANSMITTANCE_TEXTURE_WIDTH: i32 = 256;
9const TRANSMITTANCE_TEXTURE_HEIGHT: i32 = 64;
10const SCATTERING_TEXTURE_R_SIZE: i32 = 32;
11const SCATTERING_TEXTURE_MU_SIZE: i32 = 128;
12const SCATTERING_TEXTURE_MU_S_SIZE: i32 = 32;
13const SCATTERING_TEXTURE_NU_SIZE: i32 = 8;
14const SCATTERING_TEXTURE_WIDTH: i32 = 256;
15const SCATTERING_TEXTURE_HEIGHT: i32 = 128;
16const SCATTERING_TEXTURE_DEPTH: i32 = 32;
17const IRRADIANCE_TEXTURE_WIDTH: i32 = 64;
18const IRRADIANCE_TEXTURE_HEIGHT: i32 = 16;
19
20struct DensityProfileLayer {
21	width: f32,
22	exp_term: f32,
23	exp_scale: f32,
24	linear_term: f32,
25	constant_term: f32,
26	pad0: f32,
27	pad1: f32,
28	pad2: f32,
29}
30
31struct DensityProfile {
32	layers: array<DensityProfileLayer, 2>,

33}
34
35
36
37
38struct Atm {
39	solar_irradiance: vec3f,
40	sun_angular_radius: f32,
41	rayleigh_scattering: vec3f,
42	bottom_radius: f32,
43	mie_scattering: vec3f,
44	top_radius: f32,
45	mie_extinction: vec3f,
46	mie_phase_function_g: f32,
47	absorption_extinction: vec3f,
48	mu_s_min: f32,
49	ground_albedo: vec3f,
50	pad0: f32,
51	sky_spectral_radiance_to_luminance: vec3f,
52	pad1: f32,
53	sun_spectral_radiance_to_luminance: vec3f,
54	pad2: f32,
55	rayleigh_density: DensityProfile,
56	mie_density: DensityProfile,
57	absorption_density: DensityProfile,
58}
59
60fn ClampCosine(mu: f32) -> f32 {
61	return clamp(mu, -1.0, 1.0);
62}
63
64fn ClampDistance(d: f32) -> f32 {
65	return max(d, 0.0);
66}
67
68fn ClampRadius(atm: Atm, r: f32) -> f32 {
69	return clamp(r, atm.bottom_radius, atm.top_radius);
70}
71
72fn SafeSqrt(a: f32) -> f32 {
73	return sqrt(max(a, 0.0));
74}
75
76
77
78fn smoothstepGl(edge0: f32, edge1: f32, x: f32) -> f32 {
79	let t = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0);
80	return t * t * (3.0 - 2.0 * t);
81}
82
83
84
85
86fn tex2DBilinear(t: texture_2d<f32>, uv: vec2f, size: vec2i) -> vec4f {
87	let coord = uv * vec2f(size) - 0.5;
88	let i0 = vec2i(floor(coord));
89	let f = coord - floor(coord);
90	let maxc = size - 1;
91	let c00 = textureLoad(t, clamp(i0, vec2i(0), maxc), 0);
92	let c10 = textureLoad(t, clamp(i0 + vec2i(1, 0), vec2i(0), maxc), 0);
93	let c01 = textureLoad(t, clamp(i0 + vec2i(0, 1), vec2i(0), maxc), 0);
94	let c11 = textureLoad(t, clamp(i0 + vec2i(1, 1), vec2i(0), maxc), 0);
95	return mix(mix(c00, c10, f.x), mix(c01, c11, f.x), f.y);
96}
97
98fn tex3DTrilinear(t: texture_3d<f32>, uvw: vec3f, size: vec3i) -> vec4f {
99	let coord = uvw * vec3f(size) - 0.5;
100	let i0 = vec3i(floor(coord));
101	let f = coord - floor(coord);
102	let maxc = size - 1;
103	let c000 = textureLoad(t, clamp(i0, vec3i(0), maxc), 0);
104	let c100 = textureLoad(t, clamp(i0 + vec3i(1, 0, 0), vec3i(0), maxc), 0);
105	let c010 = textureLoad(t, clamp(i0 + vec3i(0, 1, 0), vec3i(0), maxc), 0);
106	let c110 = textureLoad(t, clamp(i0 + vec3i(1, 1, 0), vec3i(0), maxc), 0);
107	let c001 = textureLoad(t, clamp(i0 + vec3i(0, 0, 1), vec3i(0), maxc), 0);
108	let c101 = textureLoad(t, clamp(i0 + vec3i(1, 0, 1), vec3i(0), maxc), 0);
109	let c011 = textureLoad(t, clamp(i0 + vec3i(0, 1, 1), vec3i(0), maxc), 0);
110	let c111 = textureLoad(t, clamp(i0 + vec3i(1, 1, 1), vec3i(0), maxc), 0);
111	let z0 = mix(mix(c000, c100, f.x), mix(c010, c110, f.x), f.y);
112	let z1 = mix(mix(c001, c101, f.x), mix(c011, c111, f.x), f.y);
113	return mix(z0, z1, f.z);
114}
115
116fn GetLayerDensity(layer: DensityProfileLayer, altitude: f32) -> f32 {
117	let density = layer.exp_term * exp(layer.exp_scale * altitude) +
118		layer.linear_term * altitude + layer.constant_term;
119	return clamp(density, 0.0, 1.0);
120}
121
122fn GetProfileDensity(profile: DensityProfile, altitude: f32) -> f32 {
123	if (altitude < profile.layers[0].width) {
124		return GetLayerDensity(profile.layers[0], altitude);
125	}
126	return GetLayerDensity(profile.layers[1], altitude);
127}
128
129fn DistanceToTopAtmosphereBoundary(atm: Atm, r: f32, mu: f32) -> f32 {

130	let discriminant = r * r * (mu * mu - 1.0) + atm.top_radius * atm.top_radius;
131	return ClampDistance(-r * mu + SafeSqrt(discriminant));
132}
133
134fn DistanceToBottomAtmosphereBoundary(atm: Atm, r: f32, mu: f32) -> f32 {
135	let discriminant = r * r * (mu * mu - 1.0) +
136		atm.bottom_radius * atm.bottom_radius;
137	return ClampDistance(-r * mu - SafeSqrt(discriminant));
138}
139
140fn RayIntersectsGround(atm: Atm, r: f32, mu: f32) -> bool {
141	return mu < 0.0 &&
142		r * r * (mu * mu - 1.0) + atm.bottom_radius * atm.bottom_radius >= 0.0;
143}
144
145fn GetTextureCoordFromUnitRange(x: f32, texture_size: i32) -> f32 {
146	return 0.5 / f32(texture_size) + x * (1.0 - 1.0 / f32(texture_size));
147}
148
149fn GetUnitRangeFromTextureCoord(u: f32, texture_size: i32) -> f32 {
150	return (u - 0.5 / f32(texture_size)) / (1.0 - 1.0 / f32(texture_size));
151}
152
153fn GetTransmittanceTextureUvFromRMu(atm: Atm, r: f32, mu: f32) -> vec2f {
154	let H = sqrt(atm.top_radius * atm.top_radius -
155		atm.bottom_radius * atm.bottom_radius);
156	let rho = SafeSqrt(r * r - atm.bottom_radius * atm.bottom_radius);
157	let d = DistanceToTopAtmosphereBoundary(atm, r, mu);

158	let d_min = atm.top_radius - r;
159	let d_max = rho + H;
160	let x_mu = (d - d_min) / (d_max - d_min);
161	let x_r = rho / H;
162	return vec2f(
163		GetTextureCoordFromUnitRange(x_mu, TRANSMITTANCE_TEXTURE_WIDTH),
164		GetTextureCoordFromUnitRange(x_r, TRANSMITTANCE_TEXTURE_HEIGHT));
165}
166
167fn GetRMuFromTransmittanceTextureUv(
168	atm: Atm, uv: vec2f, r: ptr<function, f32>, mu: ptr<function, f32>) {
169	let x_mu = GetUnitRangeFromTextureCoord(uv.x, TRANSMITTANCE_TEXTURE_WIDTH);
170	let x_r = GetUnitRangeFromTextureCoord(uv.y, TRANSMITTANCE_TEXTURE_HEIGHT);
171	let H = sqrt(atm.top_radius * atm.top_radius -
172		atm.bottom_radius * atm.bottom_radius);
173	let rho = H * x_r;
174	*r = sqrt(rho * rho + atm.bottom_radius * atm.bottom_radius);
175	let d_min = atm.top_radius - *r;
176	let d_max = rho + H;
177	let d = d_min + x_mu * (d_max - d_min);
178	if (d == 0.0) {
179		*mu = 1.0;
180	} else {
181		*mu = (H * H - rho * rho - d * d) / (2.0 * (*r) * d);
182	}
183	*mu = ClampCosine(*mu);
184}
185
186fn GetTransmittanceToTopAtmosphereBoundary(
187	atm: Atm, transmittance_texture: texture_2d<f32>, r: f32, mu: f32) -> vec3f {
188	let uv = GetTransmittanceTextureUvFromRMu(atm, r, mu);
189	return tex2DBilinear(transmittance_texture, uv,
190		vec2i(TRANSMITTANCE_TEXTURE_WIDTH, TRANSMITTANCE_TEXTURE_HEIGHT)).rgb;
191}
192
193fn GetTransmittance(
194	atm: Atm, transmittance_texture: texture_2d<f32>,
195	r: f32, mu: f32, d: f32, ray_r_mu_intersects_ground: bool) -> vec3f {
196	let r_d = ClampRadius(atm, sqrt(d * d + 2.0 * r * mu * d + r * r));
197	let mu_d = ClampCosine((r * mu + d) / r_d);
198
199	if (ray_r_mu_intersects_ground) {
200		return min(
201			GetTransmittanceToTopAtmosphereBoundary(atm, transmittance_texture, r_d, -mu_d) /
202			GetTransmittanceToTopAtmosphereBoundary(atm, transmittance_texture, r, -mu),
203			vec3f(1.0, 1.0, 1.0));
204	} else {
205		return min(
206			GetTransmittanceToTopAtmosphereBoundary(atm, transmittance_texture, r, mu) /
207			GetTransmittanceToTopAtmosphereBoundary(atm, transmittance_texture, r_d, mu_d),
208			vec3f(1.0, 1.0, 1.0));
209	}
210}
211
212fn GetTransmittanceToSun(
213	atm: Atm, transmittance_texture: texture_2d<f32>, r: f32, mu_s: f32) -> vec3f {
214	let sin_theta_h = atm.bottom_radius / r;
215	let cos_theta_h = -sqrt(max(1.0 - sin_theta_h * sin_theta_h, 0.0));
216
217	let step = smoothstepGl(-sin_theta_h * atm.sun_angular_radius,
218		sin_theta_h * atm.sun_angular_radius,
219		mu_s - cos_theta_h);
220
221	return GetTransmittanceToTopAtmosphereBoundary(atm, transmittance_texture, r, mu_s) * step;
222}
223
224fn RayleighPhaseFunction(nu: f32) -> f32 {
225	let k = 3.0 / (16.0 * PI);
226	return k * (1.0 + nu * nu);
227}
228
229fn MiePhaseFunction(g: f32, nu: f32) -> f32 {
230	let k = 3.0 / (8.0 * PI) * (1.0 - g * g) / (2.0 + g * g);
231	return k * (1.0 + nu * nu) / pow(abs(1.0 + g * g - 2.0 * g * nu), 1.5);
232}
233
234fn GetScatteringTextureUvwzFromRMuMuSNu(
235	atm: Atm, r: f32, mu: f32, mu_s: f32, nu: f32,
236	ray_r_mu_intersects_ground: bool) -> vec4f {

237	let H = sqrt(atm.top_radius * atm.top_radius -
238		atm.bottom_radius * atm.bottom_radius);
239	let rho = SafeSqrt(r * r - atm.bottom_radius * atm.bottom_radius);
240	let u_r = GetTextureCoordFromUnitRange(rho / H, SCATTERING_TEXTURE_R_SIZE);
241
242	let r_mu = r * mu;
243	let discriminant = r_mu * r_mu - r * r +
244		atm.bottom_radius * atm.bottom_radius;
245	var u_mu: f32;
246
247	if (ray_r_mu_intersects_ground) {
248		let d = -r_mu - SafeSqrt(discriminant);
249		let d_min = r - atm.bottom_radius;
250		let d_max = rho;
251		var x: f32 = 0.0;
252		if (d_max != d_min) {
253			x = (d - d_min) / (d_max - d_min);
254		}
255		u_mu = 0.5 - 0.5 * GetTextureCoordFromUnitRange(x, SCATTERING_TEXTURE_MU_SIZE / 2);
256	} else {
257		let d = -r_mu + SafeSqrt(discriminant + H * H);
258		let d_min = atm.top_radius - r;
259		let d_max = rho + H;
260		u_mu = 0.5 + 0.5 * GetTextureCoordFromUnitRange(
261			(d - d_min) / (d_max - d_min), SCATTERING_TEXTURE_MU_SIZE / 2);
262	}
263
264	let d = DistanceToTopAtmosphereBoundary(atm, atm.bottom_radius, mu_s);
265	let d_min = atm.top_radius - atm.bottom_radius;
266	let d_max = H;
267	let a = (d - d_min) / (d_max - d_min);
268	let A = -2.0 * atm.mu_s_min * atm.bottom_radius / (d_max - d_min);
269
270	let u_mu_s = GetTextureCoordFromUnitRange(
271		max(1.0 - a / A, 0.0) / (1.0 + a), SCATTERING_TEXTURE_MU_S_SIZE);
272
273	let u_nu = (nu + 1.0) / 2.0;
274	return vec4f(u_nu, u_mu_s, u_mu, u_r);
275}
276
277fn GetRMuMuSNuFromScatteringTextureUvwz(
278	atm: Atm, uvwz: vec4f,
279	r: ptr<function, f32>, mu: ptr<function, f32>, mu_s: ptr<function, f32>,
280	nu: ptr<function, f32>, ray_r_mu_intersects_ground: ptr<function, bool>) {

281	let H = sqrt(atm.top_radius * atm.top_radius -
282		atm.bottom_radius * atm.bottom_radius);
283	let rho = H * GetUnitRangeFromTextureCoord(uvwz.w, SCATTERING_TEXTURE_R_SIZE);
284	*r = sqrt(rho * rho + atm.bottom_radius * atm.bottom_radius);
285
286	if (uvwz.z < 0.5) {
287		let d_min = *r - atm.bottom_radius;
288		let d_max = rho;
289		let d = d_min + (d_max - d_min) * GetUnitRangeFromTextureCoord(
290			1.0 - 2.0 * uvwz.z, SCATTERING_TEXTURE_MU_SIZE / 2);
291		if (d == 0.0) {
292			*mu = -1.0;
293		} else {
294			*mu = ClampCosine(-(rho * rho + d * d) / (2.0 * (*r) * d));
295		}
296		*ray_r_mu_intersects_ground = true;
297	} else {
298		let d_min = atm.top_radius - *r;
299		let d_max = rho + H;
300		let d = d_min + (d_max - d_min) * GetUnitRangeFromTextureCoord(
301			2.0 * uvwz.z - 1.0, SCATTERING_TEXTURE_MU_SIZE / 2);
302		if (d == 0.0) {
303			*mu = 1.0;
304		} else {
305			*mu = ClampCosine((H * H - rho * rho - d * d) / (2.0 * (*r) * d));
306		}
307		*ray_r_mu_intersects_ground = false;
308	}
309
310	let x_mu_s = GetUnitRangeFromTextureCoord(uvwz.y, SCATTERING_TEXTURE_MU_S_SIZE);
311	let d_min = atm.top_radiu

311s - atm.bottom_radius;
312	let d_max = H;
313	let A = -2.0 * atm.mu_s_min * atm.bottom_radius / (d_max - d_min);
314	let a = (A - x_mu_s * A) / (1.0 + x_mu_s * A);
315	let d = d_min + min(a, A) * (d_max - d_min);
316	if (d == 0.0) {
317		*mu_s = 1.0;
318	} else {
319		*mu_s = ClampCosine((H * H - d * d) / (2.0 * atm.bottom_radius * d));
320	}
321
322	*nu = ClampCosine(uvwz.x * 2.0 - 1.0);
323}
324
325fn GetRMuMuSNuFromScatteringTextureFragCoord(
326	atm: Atm, frag_coord: vec3f,
327	r: ptr<function, f32>, mu: ptr<function, f32>, mu_s: ptr<function, f32>,
328	nu: ptr<function, f32>, ray_r_mu_intersects_ground: ptr<function, bool>) {
329	let SCATTERING_TEXTURE_SIZE = vec4f(
330		f32(SCATTERING_TEXTURE_NU_SIZE - 1),
331		f32(SCATTERING_TEXTURE_MU_S_SIZE),
332		f32(SCATTERING_TEXTURE_MU_SIZE),
333		f32(SCATTERING_TEXTURE_R_SIZE));
334
335	let frag_coord_nu = floor(frag_coord.x / f32(SCATTERING_TEXTURE_MU_S_SIZE));
336	let frag_coord_mu_s = frag_coord.x -
337		f32(SCATTERING_TEXTURE_MU_S_SIZE) * floor(frag_coord.x / f32(SCATTERING_TEXTURE_MU_S_SIZE));
338
339	let uvwz = vec4f(frag_coord_nu, frag_coord_mu_s, frag_coord.y, frag_coord.z) /
340		SCATTERING_TEXTURE_SIZE;
341
342	GetRMuMuSNuFromScatteringTextureUvwz(
343		atm, uvwz, r, mu, mu_s, nu, ray_r_mu_intersects_ground);
344
345	*nu = clamp(*nu,
346		(*mu) * (*mu_s) - sqrt((1.0 - (*mu) * (*mu)) * (1.0 - (*mu_s) * (*mu_s))),
347		(*mu) * (*mu_s) + sqrt((1.0 - (*mu) * (*mu)) * (1.0 - (*mu_s) * (*mu_s))));
348}
349
350fn GetIrradianceTextureUvFromRMuS(atm: Atm, r: f32, mu_s: f32) -> vec2f {

351	let x_r = (r - atm.bottom_radius) / (atm.top_radius - atm.bottom_radius);
352	let x_mu_s = mu_s * 0.5 + 0.5;
353	return vec2f(GetTextureCoordFromUnitRange(x_mu_s, IRRADIANCE_TEXTURE_WIDTH),
354		GetTextureCoordFromUnitRange(x_r, IRRADIANCE_TEXTURE_HEIGHT));
355}
356
357fn GetIrradiance(
358	atm: Atm, irradiance_texture: texture_2d<f32>, r: f32, mu_s: f32) -> vec3f {
359	let uv = GetIrradianceTextureUvFromRMuS(atm, r, mu_s);
360	return tex2DBilinear(irradiance_texture, uv,
361		vec2i(IRRADIANCE_TEXTURE_WIDTH, IRRADIANCE_TEXTURE_HEIGHT)).rgb;
362}
363`,hs=e=>`
364${Gl}
365
366fn ComputeOpticalLengthToTopAtmosphereBoundary(
367	atm: Atm, profile: DensityProfile, r: f32, mu: f32) -> f32 {
368	const SAMPLE_COUNT: i32 = 500;
369	let dx = DistanceToTopAtmosphereBoundary(atm, r, mu) / f32(SAMPLE_COUNT);
370	var result: f32 = 0.0;
371	for (var i: i32 = 0; i <= SAMPLE_COUNT; i++) {
372		let d_i = f32(i) * dx;
373		let r_i = sqrt(d_i * d_i + 2.0 * r * mu * d_i + r * r);
374		let y_i = GetProfileDensity(profile, r_i - atm.bottom_radius);
375		var weight_i: f32 = 1.0;
376		if (i == 0 || i == SAMPLE_COUNT) {
377			weight_i = 0.5;
378		}
379		result += y_i * weight_i * dx;
380	}
381	return result;
382}
383
384fn ComputeTransmittanceToTopAtmosphereBoundary(
385	atm: Atm, r: f32, mu: f32) -> vec3f {
386	var density = vec3f(0.0);
387	density += atm.rayleigh_scattering *
388		ComputeOpticalLengthToTopAtmosphereBoundary(atm, atm.rayleigh_density, r, mu);
389	density += atm.mie_extinction *
390		ComputeOpticalLengthToTopAtmosphereBoundary(atm, atm.mie_density, r, mu);
391	density += atm.absorption_extinction *
392		ComputeOpticalLengthToTopAtmosphereBoundary(atm, atm.absorption_density, r, mu);
393	return exp(-density);
394}
395
396fn ComputeTransmittanceToTopAtmosphereBoundaryTexture(
397	atm: Atm, frag_coord: vec2f) -> vec3f {
398	let TRANSMITTANCE_TEXTURE_SIZE = vec2f(
399		f32(TRANSMITTANCE_TEXTURE_WIDTH), f32(TRANSMITTANCE_TEXTURE_HEIGHT));
400	var r: f32;
401	var mu: f32;
402	GetRMuFromTransmittanceTextureUv(
403		atm, frag_coord / TRANSMITTANCE_TEXTURE_SIZE, &r, &mu);
404	return ComputeTransmittanceToTopAtmosphereBoundary(atm, r, mu);
405}
406
407fn ComputeSingleScatteringIntegrand(
408	atm: Atm, transmittance_texture: texture_2d<f32>,
409	r: f32, mu: f32, mu_s: f32, nu: f32, d: f32,
410	ray_r_mu_intersects_ground: bool,
411	rayleigh: ptr<function, vec3f>, mie: ptr<function, vec3f>) {
412	let r_d = ClampRadius(atm, sqrt(d * d + 2.0 * r * mu * d + r * r));
413	let mu_s_d = ClampCosine((r * mu_s + d * nu) / r_d);
414
415	let transmittance =
416		GetTransmittance(atm, transmittance_texture, r, mu, d, ray_r_mu_intersects_ground) *
417		GetTransmittanceToSun(atm, transmittance_texture, r_d, mu_s_d);
418
419	*rayleigh = transmittance *
420		GetProfileDensity(atm.rayleigh_density, r_d - atm.bottom_radius);
421	*mie = transmittance *
422		GetProfileDensity(atm.mie_density, r_d - atm.bottom_radius);
423}
424
425fn DistanceToNearestAtmosphereBoundary(
426	atm: Atm, r: f32, mu: f32, ray_r_mu_intersects_ground: bool) -> f32 {
427	if (ray_r_mu_intersects_ground) {
428		return DistanceToBottomAtmosphereBoundary(atm, r, mu);
429	}
430	return DistanceToTopAtmosphereBoundary(atm, r, mu);
431}
432
433fn ComputeSingleScattering(
434	atm: Atm, transmittance_texture: texture_2d<f32>,
435	r: f32, mu: f32, mu_s: f32, nu: f32,
436	ray_r_mu_intersects_ground: bool,
437	rayleigh: ptr<function, vec3f>, mie: ptr<function, vec3f>) {
438	const SAMPLE_COUNT: i32 = 50;
439	let dx = DistanceToNearestAtmosphereBoundary(
440		atm, r, mu, ray_r_mu_intersects_ground) / f32(SAMPLE_COUNT);
441
442	var rayleigh_sum = vec3f(0.0);
443	var mie_sum = vec3f(0.0);
444
445	for (var i: i32 = 0; i <= SAMPLE_COUNT; i++) {
446		let d_i = f32(i) * dx;
447		var rayleigh_i: vec3f;
448		var mie_i: vec3f;
449		ComputeSingleScatteringIntegrand(
450			atm, transmittance_texture, r, mu, mu_s, nu, d_i,
451			ray_r_mu_intersects_ground, &rayleigh_i, &mie_i);
452
453		var weight_i: f32 = 1.0;
454		if (i == 0 || i == SAMPLE_COUNT) {
455			weight_i = 0.5;
456		}
457		rayleigh_sum += rayleigh_i * weight_i;
458		mie_sum += mie_i * weight_i;
459	}
460
461	*rayleigh = rayleigh_sum * dx * atm.solar_irradiance * atm.rayleigh_scattering;
462	*mie = mie_sum * dx * atm.solar_irradiance * atm.mie_scattering;
463}
464
465fn ComputeSingleScatteringTexture(
466	atm: Atm, transmittance_texture: texture_2d<f32>, frag_coord: vec3f,
467	rayleigh: ptr<function, vec3f>, mie: ptr<function, vec3f>) {
468	var r: f32;
469	var mu: f32;
470	var mu_s: f32;
471	var nu: f32;
472	var ray_r_mu_intersects_ground: bool;
473	GetRMuMuSNuFromScatteringTextureFragCoord(
474		atm, frag_coord, &r, &mu, &mu_s, &nu, &ray_r_mu_intersects_ground);
475	ComputeSingleScattering(
476		atm, transmittance_texture, r, mu, mu_s, nu,
477		ray_r_mu_intersects_ground, rayleigh, mie);
478}
479
480// The n-th-order lookup used during precompute: the delta textures are
481// float32, so they go through the manual trilinear helper.
482fn GetScatteringDelta(
483	atm: Atm, scattering_texture: texture_3d<f32>,
484	r: f32, mu: f32, mu_s: f32, nu: f32,
485	ray_r_mu_intersects_ground: bool) -> vec3f {
486	let uvwz = GetScatteringTextureUvwzFromRMuMuSNu(
487		atm, r, mu, mu_s, nu, ray_r_mu_intersects_ground);
488
489	let tex_coord_x = uvwz.x * f32(SCATTERING_TEXTURE_NU_SIZE - 1);
490	let tex_x = floor(tex_coord_x);
491	let lerp = tex_coord_x - tex_x;
492
493	let uvw0 = vec3f((tex_x + uvwz.y) / f32(SCATTERING_TEXTURE_NU_SIZE), uvwz.z, uvwz.w);
494	let uvw1 = vec3f((tex_x + 1.0 + uvwz.y) / f32(SCATTERING_TEXTURE_NU_SIZE), uvwz.z, uvwz.w);
495
496	let size = vec3i(SCATTERING_TEXTURE_WIDTH, SCATTERING_TEXTURE_HEIGHT, SCATTERING_TEXTURE_DEPTH);
497	return tex3DTrilinear(scattering_texture, uvw0, size).rgb * (1.0 - lerp) +
498		tex3DTrilinear(scattering_texture, uvw1, size).rgb * lerp;
499}
500
501fn GetScatteringOrder(
502	atm: Atm,
503	single_rayleigh_scattering_texture: texture_3d<f32>,
504	single_mie_scattering_texture: texture_3d<f32>,
505	multiple_scattering_texture: texture_3d<f32>,
506	r: f32, mu: f32, mu_s: f32, nu: f32,
507	ray_r_mu_intersects_ground: bool,
508	scattering_order: i32) -> vec3f {
509	if (scattering_order == 1) {
510		let rayleigh = GetScatteringDelta(
511			atm, single_rayleigh_scattering_texture, r, mu, mu_s, nu,
512			ray_r_mu_intersects_ground);
513		let mie = GetScatteringDelta(
514			atm, single_mie_scattering_texture, r, mu, mu_s, nu,
515			ray_r_mu_intersects_ground);
516		return rayleigh * RayleighPhaseFunction(nu) +
517			mie * MiePhaseFunction(atm.mie_phase_function_g, nu);
518	} else {
519		return GetScatteringDelta(
520			atm, multiple_scattering_texture, r, mu, mu_s, nu,
521			ray_r_mu_intersects_ground);
522	}
523}
524
525fn GetRMuSFromIrradianceTextureUv(
526	atm: Atm, uv: vec2f, r: ptr<function, f32>, mu_s: ptr<function, f32>) {
527	let x_mu_s = GetUnitRangeFromTextureCoord(uv.x, IRRADIANCE_TEXTURE_WIDTH);
528	let x_r = GetUnitRangeFromTextureCoord(uv.y, IRRADIANCE_TEXTURE_HEIGHT);

529	*r = atm.bottom_radius + x_r * (atm.top_radius - atm.bottom_radius);
530	*mu_s = ClampCosine(2.0 * x_mu_s - 1.0);
531}
532
533fn ComputeDirectIrradiance(
534	atm: Atm, transmittance_texture: texture_2d<f32>, r: f32, mu_s: f32) -> vec3f {
535	let alpha_s = atm.sun_angular_radius;
536
537	var average_cosine_factor: f32;
538	if (mu_s < -alpha_s) {
539		average_cosine_factor = 0.0;
540	} else if (mu_s > alpha_s) {
541		average_cosine_factor = mu_s;
542	} else {
543		average_cosine_factor = (mu_s + alpha_s) * (mu_s + alpha_s) / (4.0 * alpha_s);
544	}
545
546	return atm.solar_irradiance *
547		GetTransmittanceToTopAtmosphereBoundary(atm, transmittance_texture, r, mu_s) *
548		average_cosine_factor;
549}
550
551fn ComputeIndirectIrradiance(
552	atm: Atm,
553	single_rayleigh_scattering_texture: texture_3d<f32>,
554	single_mie_scattering_texture: texture_3d<f32>,
555	multiple_scattering_texture: texture_3d<f32>,
556	r: f32, mu_s: f32, scattering_order: i32) -> vec3f {
557	const SAMPLE_COUNT: i32 = 32;
558	let dphi = PI / f32(SAMPLE_COUNT);
559	let dtheta = PI / f32(SAMPLE_COUNT);
560
561	var result = vec3f(0.0);
562	let omega_s = vec3f(sqrt(1.0 - mu_s * mu_s), 0.0, mu_s);
563
564	for (var j: i32 = 0; j < SAMPLE_COUNT / 2; j++) {
565		let theta = (f32(j) + 0.5) * dtheta;
566		for (var i: i32 = 0; i < 2 * SAMPLE_COUNT; i++) {
567			let phi = (f32(i) + 0.5) * dphi;
568			let omega = vec3f(cos(phi) * sin(theta), sin(phi) * sin(theta), cos(theta));
569			let domega = dtheta * dphi * sin(theta);
570			let nu = dot(omega, omega_s);
571
572			result += GetScatteringOrder(atm,
573				single_rayleigh_scattering_texture, single_mie_scattering_texture,
574				multiple_scattering_texture,
575				r, omega.z, mu_s, nu, false, scattering_order) * omega.z * domega;
576		}
577	}
578
579	return result;
580}
581
582fn ComputeDirectIrradianceTexture(
583	atm: Atm, transmittance_texture: texture_2d<f32>, frag_coord: vec2f) -> vec3f {
584	var r: f32;
585	var mu_s: f32;
586	let IRRADIANCE_TEXTURE_SIZE = vec2f(
587		f32(IRRADIANCE_TEXTURE_WIDTH), f32(IRRADIANCE_TEXTURE_HEIGHT));
588	GetRMuSFromIrradianceTextureUv(
589		atm, frag_coord / IRRADIANCE_TEXTURE_SIZE, &r, &mu_s);
590	return ComputeDirectIrradiance(atm, transmittance_texture, r, mu_s);
591}
592
593fn ComputeIndirectIrradianceTexture(
594	atm: Atm,
595	single_rayleigh_scattering_texture: texture_3d<f32>,
596	single_mie_scattering_texture: texture_3d<f32>,
597	multiple_scattering_texture: texture_3d<f32>,
598	frag_coord: vec2f, scattering_order: i32) -> vec3f {
599	var r: f32;
600	var mu_s: f32;
601	let IRRADIANCE_TEXTURE_SIZE = vec2f(
602		f32(IRRADIANCE_TEXTURE_WIDTH), f32(IRRADIANCE_TEXTURE_HEIGHT));
603	GetRMuSFromIrradianceTextureUv(
604		atm, frag_coord / IRRADIANCE_TEXTURE_SIZE, &r, &mu_s);
605	return ComputeIndirectIrradiance(atm,
606		single_rayleigh_scattering_texture, single_mie_scattering_texture,
607		multiple_scattering_texture, r, mu_s, scattering_order);
608}
609
610fn ComputeScatteringDensity(
611	atm: Atm,
612	transmittance_texture: texture_2d<f32>,
613	single_rayleigh_scattering_texture: texture_3d<f32>,
614	single_mie_scattering_texture: texture_3d<f32>,
615	multiple_scattering_texture: texture_3d<f32>,
616	irradiance_texture: texture_2d<f32>,
617	r: f32, mu: f32, mu_s: f32, nu: f32, scattering_order: i32) -> vec3f {
618	let zenith_direction = vec3f(0.0, 0.0, 1.0);
619	let omega = vec3f(sqrt(1.0 - mu * mu), 0.0, mu);
620	var sun_dir_x: f32 = 0.0;
621	if (omega.x != 0.0) {
622		sun_dir_x = (nu - mu * mu_s) / omega.x;
623	}
624	let sun_dir_y = sqrt(max(1.0 - sun_dir_x * sun_dir_x - mu_s * mu_s, 0.0));
625	let omega_s = vec3f(sun_dir_x, sun_dir_y, mu_s);
626
627	const SAMPLE_COUNT: i32 = 16;
628	let dphi = PI / f32(SAMPLE_COUNT);
629	let dtheta = PI / f32(SAMPLE_COUNT);
630	var rayleigh_mie = vec3f(0.0);
631
632	for (var l: i32 = 0; l < SAMPLE_COUNT; l++) {
633		let theta = (f32(l) + 0.5) * dtheta;
634		let cos_theta = cos(theta);
635		let sin_theta = sin(theta);
636		let ray_r_theta_intersects_ground = RayIntersectsGround(atm, r, cos_theta);
637
638		var distance_to_ground: f32 = 0.0;
639		var transmittance_to_ground = vec3f(0.0);
640		var ground_albedo = vec3f(0.0);
641		if (ray_r_theta_intersects_ground) {
642			distance_to_ground = DistanceToBottomAtmosphereBoundary(atm, r, cos_theta);
643			transmittance_to_ground = GetTransmittance(
644				atm, transmittance_texture, r, cos_theta, distance_to_ground, true);
645			// NOTE: the reference leaves ground_albedo at vec3(0) here (it
646			// declares it but never assigns atm.ground_albedo) â transcribed
647			// as-is so the LUTs match bit-for-bit in spirit.
648		}
649
650		for (var m: i32 = 0; m < 2 * SAMPLE_COUNT; m++) {
651			let phi = (f32(m) + 0.5) * dphi;
652			let omega_i = vec3f(cos(phi) * sin_theta, sin(phi) * sin_theta, cos_theta);
653			let domega_i = dtheta * dphi * sin(theta);
654

655			let nu1 = dot(omega_s, omega_i);
656			var incident_radiance = GetScatteringOrder(atm,
657				single_rayleigh_scattering_texture, single_mie_scattering_texture,
658				multiple_scattering_texture, r, omega_i.z, mu_s, nu1,
659				ray_r_theta_intersects_ground, scattering_order - 1);
660
661			let ground_normal = normalize(zenith_direction * r + omega_i * distance_to_ground);
662			let ground_irradiance = GetIrradiance(
663				atm, irradiance_texture, atm.bottom_radius, dot(ground_normal, omega_s));
664			incident_radiance += transmittance_to_ground * ground_albedo *
665				(1.0 / PI) * ground_irradiance;
666
667			let nu2 = dot(omega, omega_i);
668
669			let rayleigh_density = GetProfileDensity(
670				atm.rayleigh_density, r - atm.bottom_radius);
671			let mie_density = GetProfileDensity(
672				atm.mie_density, r - atm.bottom_radius);
673
674			rayleigh_mie += incident_radiance * (
675				atm.rayleigh_scattering * rayleigh_density * RayleighPhaseFunction(nu2) +
676				atm.mie_scattering * mie_density * MiePhaseFunction(atm.mie_phase_function_g, nu2)) *
677				domega_i;
678		}
679	}
680
681	return rayleigh_mie;
682}
683
684fn ComputeMultipleScattering(
685	atm: Atm,
686	transmittance_texture: texture_2d<f32>,
687	scattering_density_texture: texture_3d<f32>,
688	r: f32, mu: f32, mu_s: f32, nu: f32,
689	ray_r_mu_intersects_ground: bool) -> vec3f {
690	const SAMPLE_COUNT: i32 = 50;
691	let dx = DistanceToNearestAtmosphereBoundary(
692		atm, r, mu, ray_r_mu_intersects_ground) / f32(SAMPLE_COUNT);
693
694	var rayleigh_mie_sum = vec3f(0.0);
695
696	for (var i: i32 = 0; i <= SAMPLE_COUNT; i++) {
697		let d_i = f32(i) * dx;
698
699		let r_i = ClampRadius(atm, sqrt(d_i * d_i + 2.0 * r * mu * d_i + r * r));
700		let mu_i = ClampCosine((r * mu + d_i) / r_i);
701		let mu_s_i = ClampCosine((r * mu_s + d_i * nu) / r_i);
702
703		let rayleigh_mie_i =
704			GetScatteringDelta(atm, scattering_density_texture, r_i, mu_i, mu_s_i, nu,
705				ray_r_mu_intersects_ground) *
706			GetTransmittance(atm, transmittance_texture, r, mu, d_i,
707				ray_r_mu_intersects_ground) * dx;
708
709		var weight_i: f32 = 1.0;
710		if (i == 0 || i == SAMPLE_COUNT) {
711			weight_i = 0.5;
712		}
713		rayleigh_mie_sum += rayleigh_mie_i * weight_i;
714	}
715
716	return rayleigh_mie_sum;
717}
718
719fn ComputeScatteringDensityTexture(
720	atm: Atm,
721	transmittance_texture: texture_2d<f32>,
722	single_rayleigh_scattering_texture: texture_3d<f32>,
723	single_mie_scattering_texture: texture_3d<f32>,
724	multiple_scattering_texture: texture_3d<f32>,
725	irradiance_texture: texture_2d<f32>,
726	frag_coord: vec3f, scattering_order: i32) -> vec3f {
727	var r: f32;
728	var mu: f32;
729	var mu_s: f32;
730	var nu: f32;
731	var ray_r_mu_intersects_ground: bool;
732	GetRMuMuSNuFromScatteringTextureFragCoord(
733		atm, frag_coord, &r, &mu, &mu_s, &nu, &ray_r_mu_intersects_ground);
734
735	return ComputeScatteringDensity(atm, transmittance_texture,
736		single_rayleigh_scattering_texture, single_mie_scattering_texture,
737		multiple_scattering_texture, irradiance_texture, r, mu, mu_s, nu,
738		scattering_order);
739}
740
741fn ComputeMultipleScatteringTexture(
742	atm: Atm,
743	transmittance_texture: texture_2d<f32>,
744	scattering_density_texture: texture_3d<f32>,
745	frag_coord: vec3f, nu: ptr<function, f32>) -> vec3f {
746	var r: f32;
747	var mu: f32;
748	var mu_s: f32;
749	var ray_r_mu_intersects_ground: bool;
750	GetRMuMuSNuFromScatteringTextureFragCoord(
751		atm, frag_coord, &r, &mu, &mu_s, nu, &ray_r_mu_intersects_ground);
752
753	return ComputeMultipleScattering(atm, transmittance_texture,
754		scattering_density_texture, r, mu, mu_s, *nu,
755		ray_r_mu_intersects_ground);
756}
757
758
759struct PassParams {
760	luminance_from_radiance: mat3x3f,
761	blend: vec4f,
762	layer: i32,
763	scattering_order: i32,
764}
765
766fn RadianceToLuminance(pass_params: PassParams, rad: vec3f) -> vec3f {
767	return pass_params.luminance_from_radiance * rad;
768}
769
770@group(0) @binding(0) var<uniform> atm: Atm;
771@group(0) @binding(1) var<uniform> pass_params: PassParams;
772${e}
773`,Mg=hs(`
774@group(0) @binding(2) var out_transmittance: texture_storage_2d<rgba32float, write>;
775`)+`
776@compute @workgroup_size(8, 8, 1)
777fn main(@builtin(global_invocation_id) gid: vec3u) {
778	let coord = vec2i(gid.xy);
779	let frag_coord = vec2f(coord) + vec2f(0.5, 0.5);
780	textureStore(out_transmittance, coord,
781		vec4f(ComputeTransmittanceToTopAtmosphereBoundaryTexture(atm, frag_coord), 1.0));
782}
783`,Cg=hs(`
784@group(0) @binding(2) var irradiance_read: texture_2d<f32>;
785@group(0) @binding(3) var out_irradiance: texture_storage_2d<rgba32float, write>;
786@group(0) @binding(4) var out_delta_irradiance: texture_storage_2d<rgba32float, write>;
787@group(0) @binding(5) var transmittance: texture_2d<f32>;
788`)+`
789@compute @workgroup_size(8, 8, 1)
790fn main(@builtin(global_invocation_id) gid: vec3u) {
791	let coord = vec2i(gid.xy);
792	let frag_coord = vec2f(coord) + vec2f(0.5, 0.5);
793
794	textureStore(out_delta_irradiance, coord,
795		vec4f(ComputeDirectIrradianceTexture(atm, transmittance, frag_coord), 1.0));
796
797	var result = vec4f(0.0, 0.0, 0.0, 1.0);
798	if (pass_params.blend[1] == 1.0) {
799		result += textureLoad(irradiance_read, coord, 0);
800	}
801	textureStore(out_irradiance, coord, result);
802}
803`,Rg=hs(`
804@group(0) @binding(2) var out_delta_rayleigh: texture_storage_3d<rgba32float, write>;
805@group(0) @binding(3) var out_delta_mie: texture_storage_3d<rgba32float, write>;
806@group(0) @binding(4) var scattering_read: texture_3d<f32>;
807@group(0) @binding(5) var out_scattering: texture_storage_3d<rgba16float, write>;
808@group(0) @binding(6) var transmittance: texture_2d<f32>;
809`)+`
810@compute @workgroup_size(8, 8, 1)
811fn main(@builtin(global_invocation_id) gid: vec3u) {
812	var coord = vec3i(gid);
813	coord.z = pass_params.layer;
814	let frag_coord = vec3f(coord) + vec3f(0.5, 0.5, 0.5);
815
816	var delta_rayleigh: vec3f;
817	var delta_mie: vec3f;
818	ComputeSingleScatteringTexture(atm, transmittance, frag_coord,
819		&delta_rayleigh, &delta_mie);
820
821	textureStore(out_delta_rayleigh, coord, vec4f(delta_rayleigh, 1.0));
822	textureStore(out_delta_mie, coord, vec4f(delta_mie, 1.0));
823
824	var scattering = vec4f(
825		RadianceToLuminance(pass_params, delta_rayleigh),
826		RadianceToLuminance(pass_params, delta_mie).r);
827	if (pass_params.blend[2] == 1.0) {
828		scattering += textureLoad(scattering_read, coord, 0);
829	}
830	textureStore(out_scattering, coord, scattering);
831}
832`,zg=hs(`
833@group(0) @binding(2) var out_delta_scattering_density: texture_storage_3d<rgba32float, write>;
834@group(0) @binding(3) var transmittance: texture_2d<f32>;
835@group(0) @binding(4) var single_rayleigh_scattering: texture_3d<f32>;
836@group(0) @binding(5) var single_mie_scattering: texture_3d<f32>;
837@group(0) @binding(6) var multiple_scattering: texture_3d<f32>;
838@group(0) @binding(7) var irradiance: texture_2d<f32>;
839`)+`
840@compute @workgroup_size(8, 8, 1)
841fn main(@builtin(global_invocation_id) gid: vec3u) {
842	var coord = vec3i(gid);
843	coord.z = pass_params.layer;
844	let frag_coord = vec3f(coord) + vec3f(0.5, 0.5, 0.5);
845
846	let scattering_density = ComputeScatteringDensityTexture(
847		atm, transmittance, single_rayleigh_scattering, single_mie_scattering,
848		multiple_scattering, irradiance, frag_coord, pass_params.scattering_order);
849
850	textureStore(out_delta_scattering_density, coord, vec4f(scattering_density, 1.0));
851}
852`,kg=hs(`
853@group(0) @binding(2) var out_delta_irradiance: texture_storage_2d<rgba32float, write>;
854@group(0) @binding(3) var irradiance_read: texture_2d<f32>;
855@group(0) @binding(4) var out_irradiance: texture_storage_2d<rgba32float, write>;
856@group(0) @binding(5) var single_rayleigh_scattering: texture_3d<f32>;
857@group(0) @binding(6) var single_mie_scattering: texture_3d<f32>;
858@group(0) @binding(7) var multiple_scattering: texture_3d<f32>;
859`)+`
860@compute @workgroup_size(8, 8, 1)
861fn main(@builtin(global_invocation_id) gid: vec3u) {
862	let coord = vec2i(gid.xy);
863	let frag_coord = vec2f(coord) + vec2f(0.5, 0.5);
864
865	let delta_irradiance_value = ComputeIndirectIrradianceTexture(
866		atm, single_rayleigh_scattering, single_mie_scattering,
867		multiple_scattering, frag_coord, pass_params.scattering_order);
868	textureStore(out_delta_irradiance, coord, vec4f(delta_irradiance_value, 1.0));
869
870	var irradiance = vec4f(RadianceToLuminance(pass_params, delta_irradiance_value), 1.0);
871	if (pass_params.blend[1] == 1.0) {
872		irradiance += textureLoad(irradiance_read, coord, 0);
873	}
874	textureStore(out_irradiance, coord, irradiance);
875}
876`,Ag=hs(`
877@group(0) @binding(2) var out_delta_multiple_scattering: texture_storage_3d<rgba32float, write>;
878@group(0) @binding(3) var scattering_read: texture_3d<f32>;
879@group(0) @binding(4) var out_scattering: texture_storage_3d<rgba16float, write>;
880@group(0) @binding(5) var transmittance: texture_2d<f32>;
881@group(0) @binding(6) var delta_scattering_density: texture_3d<f32>;
882`)+`
883@compute @workgroup_size(8, 8, 1)
884fn main(@builtin(global_invocation_id) gid: vec3u) {
885	var coord = vec3i(gid);
886	coord.z = pass_params.layer;
887	let frag_coord = vec3f(coord) + vec3f(0.5, 0.5, 0.5);
888
889	var nu: f32;
890	let delta_multiple_scattering_value = ComputeMultipleScatteringTexture(
891		atm, transmittance, delta_scattering_density, frag_coord, &nu);
892
893	textureStore(out_delta_multiple_scattering, coord,
894		vec4f(delta_multiple_scattering_value, 1.0));
895
896	var scattering = vec4f(
897		RadianceToLuminance(pass_params, delta_multiple_scattering_value) /
898			RayleighPhaseFunction(nu),
899		0.0);
900	if (pass_params.blend[1] == 1.0) {
901		scattering += textureLoad(scattering_read, coord, 0);
902	}
903	textureStore(out_scattering, coord, scattering);
904}
905`;function Ph(e){let t=e.backend.device;if(!t)throw new Error("[spline/sky] WebGPU device unavailable for LUT precompute");return t}function sr(e,t){e.initTexture(t);let a=e.backend.get(t);

vendor: 4,601 bytes, lines 905-933

905if(!a?.texture)throw new Error("[spline/sky] three did not allocate a GPU texture");return a.texture}function zi(e,t,a,r){let s=new nc(e,t);return s.type=a,s.minFilter=Oe,s.magFilter=Oe,s.generateMipmaps=!1,s.mipmapsAutoUpdate=!1,s.name=r,s}function zs(e,t,a,r,s,i){let n=new ts(e,t,a);return n.type=r,n.minFilter=i,n.magFilter=i,n.generateMipmaps=!1,n.mipmapsAutoUpdate=!1,n.name=s,n}var ki=256,Pg={transmittance:{code:Mg,entries:[{storage:"2d",format:"rgba32float"}]},directIrradiance:{code:Cg,entries:[{sampled:"2d"},{storage:"2d",format:"rgba32float"},{storage:"2d",format:"rgba32float"},{sampled:"2d"}]},singleScattering:{code:Rg,entries:[{storage:"3d",format:"rgba32float"},{storage:"3d",format:"rgba32float"},{sampled:"3d"},{storage:"3d",format:"rgba16float"},{sampled:"2d"}]},scatteringDensity:{code:zg,entries:[{storage:"3d",format:"rgba32float"},{sampled:"2d"},{sampled:"3d"},{sampled:"3d"},{sampled:"3d"},{sampled:"2d"}]},indirectIrradiance:{code:kg,entries:[{storage:"2d",format:"rgba32float"},{sampled:"2d"},{storage:"2d",format:"rgba32float"},{sampled:"3d"},{sampled:"3d"},{sampled:"3d"}]},multipleScattering:{code:Ag,entries:[{storage:"3d",format:"rgba32float"},{sampled:"3d"},{storage:"3d",format:"rgba16float"},{sampled:"2d"},{sampled:"3d"}]}};async function $r(e,t,a,r,s,i){let n=Ph(e),l=sr(e,t),o=a*(i?8:16),u=256*Math.ceil(o/256),d=n.createBuffer({size:u*r*s,usage:GPUBufferUsage.COPY_DST|GPUBufferUsage.MAP_READ}),m=n.createCommandEncoder();m.copyTextureToBuffer({texture:l},{buffer:d,bytesPerRow:u,rowsPerImage:r},{width:a,height:r,depthOrArrayLayers:s}),n.queue.submit([m.finish()]),await d.mapAsync(GPUMapMode.READ);let h=d.getMappedRange(),f=new Float32Array(a*r*s*4);for(let p=0;p<s;p++)for(let _=0;_<r;_++){let y=(p*r+_)*u;if(i){let g=new Uint16Array(h,y,4*a);for(let x=0;x<4*a;x++)f[(p*r+_)*a*4+x]=Eg(g[x])}else{let g=new Float32Array(h,y,4*a);f.set(g,(p*r+_)*a*4)}}return d.unmap(),d.destroy(),f}function Eg(e){let t=(32768&e)>>15,a=(31744&e)>>10,r=1023&e;return a===0?(t?-1:1)*Math.pow(2,-14)*(r/1024):a===31?r?NaN:1/0*(t?-1:1):(t?-1:1)*Math.pow(2,a-15)*(1+r/1024)}function Zi(e,t){return .5/t+e*(1-1/t)}function Eh(e,t,a,r,s){let i=Math.min(Math.max(r*t-.5,0),t-1),n=Math.min(Math.max(s*a-.5,0),a-1),l=Math.floor(i),o=Math.floor(n),u=Math.min(l+1,t-1),d=Math.min(o+1,a-1),m=i-l,h=n-o,f=[0,0,0];for(let p=0;p<3;p++){let _=e[4*(o*t+l)+p],y=e[4*(o*t+u)+p],g=e[4*(d*t+l)+p],x=e[4*(d*t+u)+p];f[p]=(_*(1-m)+y*m)*(1-h)+(g*(1-m)+x*m)*h}return f}function Ng(e,t,a,r){let s=e.bottomRadius/a,i=-Math.sqrt(Math.max(0,1-s*s)),n=(function(o,u,d){let m=Math.min(1,Math.max(0,(d-o)/(u-o)));return m*m*(3-2*m)})(-s*e.sunAngularRadius,s*e.sunAngularRadius,r-i),l=(function(o,u,d,m){let h=Math.sqrt(o.topRadius*o.topRadius-o.bottomRadius*o.bottomRadius),f=Math.sqrt(Math.max(0,d*d-o.bottomRadius*o.bottomRadius)),p=(function(g,x,v){let V=x*x*(v*v-1)+g.topRadius*g.topRadius;return Math.max(0,-x*v+Math.sqrt(Math.max(0,V)))})(o,d,m),_=o.topRadius-d,y=f/h;return Eh(u,256,64,Zi((p-_)/(f+h-_),256),Zi(y,64))})(e,t,a,r);return[l[0]*n,l[1]*n,l[2]*n]}function ks(e){return .2126*e[0]+.7152*e[1]+.0722*e[2]}function Lu(e,t,a,r){let s=Ng(e,t.transmittance,a,r),i=e.sunSpectralRadianceToLuminance;return[e.solarIrradiance[0]*s[0]*i[0],e.solarIrradiance[1]*s[1]*i[1],e.solarIrradiance[2]*s[2]*i[2]]}function Iu(e,t,a,r){let s=(function(n,l,o,u){let d=(o-n.bottomRadius)/(n.topRadius-n.bottomRadius);return Eh(l,64,16,Zi(.5*u+.5,64),Zi(d,16))})(e,t.irradiance,a,r),i=e.skySpectralRadianceToLuminance;return[s[0]*i[0],s[1]*i[1],s[2]*i[2]]}var Yi="6.0e4",Du=`
906fn GetExtrapolatedSingleMieScattering(atm: Atm, scattering: vec4f) -> vec3f {
907	if (scattering.r == 0.0) {
908		return vec3f(0.0);
909	}
910	return scattering.rgb * scattering.a / scattering.r *
911		(atm.rayleigh_scattering.r / atm.mie_scattering.r) *
912		(atm.mie_scattering / atm.rayleigh_scattering);
913}
914
915fn GetCombinedScattering(
916	atm: Atm,
917	scattering_texture: texture_3d<f32>,
918	scattering_sampler: sampler,
919	r: f32, mu: f32, mu_s: f32, nu: f32,
920	ray_r_mu_intersects_ground: bool,
921	single_mie_scattering: ptr<function, vec3f>) -> vec3f {
922	let uvwz = GetScatteringTextureUvwzFromRMuMuSNu(
923		atm, r, mu, mu_s, nu, ray_r_mu_intersects_ground);
924
925	let tex_coord_x = uvwz.x * f32(SCATTERING_TEXTURE_NU_SIZE - 1);
926	let tex_x = floor(tex_coord_x);
927	let lerp = tex_coord_x - tex_x;
928
929	let uvw0 = vec3f((tex_x + uvwz.y) / f32(SCATTERING_TEXTURE_NU_SIZE), uvwz.z, uvwz.w);
930	let uvw1 = vec3f((tex_x + 1.0 + uvwz.y) / f32(SCATTERING_TEXTURE_NU_SIZE), uvwz.z, uvwz.w);
931
932	let combined_scattering =
933		textureSampleLevel(scattering_texture, scattering_sampler, uvw0, 0.0

933) * (1.0 - lerp) +
934		textureSampleLevel(scattering_texture, scattering_sampler, uvw1, 0.0) * lerp;
935	let scattering = combined_scattering.xyz;
936	*single_mie_scattering = GetExtrapolatedSingleMieScattering(atm, combined_scattering);
937
938	return scattering;
939}
940
941// GLSL relies on sqrt(negative) = NaN making both branch conditions false;
942// WGSL leaves that indeterminate, so the discriminant is tested explicitly â
943// same control flow for every defined input.
944fn GetSkyRadiance(
945	atm: Atm,
946	transmittance_texture: texture_2d<f32>,
947	scattering_texture: texture_3d<f32>,
948	scattering_sampler: sampler,
949	camera_in: vec3f, view_ray: vec3f, shadow_length: f32,
950	sun_direction: vec3f, transmittance: ptr<function, vec3f>) -> vec3f {
951	var camera = camera_in;
952	var r = length(camera);
953	var rmu = dot(camera, view_ray);
954	let disc = rmu * rmu - r * r + atm.top_radius * atm.top_radius;
955	var distance_to_top_atmosphere_boundary = -1.0;
956	if (disc >= 0.0) {
957		distance_to_top_atmosphere_boundary = -rmu - sqrt(disc);
958	}
959
960	if (distance_to_top_atmosphere_boundary > 0.0) {
961		camera = camera + view_ray * distance_to_top_atmosphere_boundary;

962		r = atm.top_radius;
963		rmu += distance_to_top_atmosphere_boundary;
964	} else if (r > atm.top_radius) {
965		*transmittance = vec3f(0.0);
966		return vec3f(0.0);
967	}
968
969	let mu = rmu / r;
970	let mu_s = dot(camera, sun_direction) / r;
971	let nu = dot(view_ray, sun_direction);
972	let ray_r_mu_intersects_ground = RayIntersectsGround(atm, r, mu);
973
974	if (ray_r_mu_intersects_ground) {
975		*transmittance = vec3f(0.0);
976	} else {
977		*transmittance = GetTransmittanceToTopAtmosphereBoundary(
978			atm, transmittance_texture, r, mu);
979	}
980
981	var single_mie_scattering: vec3f;
982	var scattering: vec3f;
983
984	if (shadow_length == 0.0) {
985		scattering = GetCombinedScattering(
986			atm, scattering_texture, scattering_sampler,
987			r, mu, mu_s, nu, ray_r_mu_intersects_ground,
988			&single_mie_scattering);
989	} else {
990		let d = shadow_length;
991		let r_p = ClampRadius(atm, sqrt(d * d + 2.0 * r * mu * d + r * r));
992		let mu_p = (r * mu + d) / r_p;
993		let mu_s_p = (r * mu_s + d * nu) / r_p;
994
995		scattering = GetCombinedScattering(
996			atm, scattering_texture, scattering_sampler,
997			r_p, mu_p, mu_s_p, nu, ray_r_mu_intersects_ground,
998			&single_mie_scattering);
999
1000		let shadow_transmittance = GetTransmittance(
1001			atm, transmittance_texture, r, mu, shadow_length,
1002			ray_r_mu_intersects_ground);
1003
1004		scattering = scattering * shadow_transmittance;
1005		single_mie_scattering = single_mie_scattering * shadow_transmittance;
1006	}
1007
1008	return scattering * RayleighPhaseFunction(nu) + single_mie_scattering *
1009		MiePhaseFunction(atm.mie_phase_function_g, nu);
1010}
1011
1012/**
1013 * The transmittance half of GetSkyRadiance, without the radiance.
1014 *
1015 * The clouds march calls GetSkyRadiance once per LIT step purely for its
1016 * transmittance out-param and drops the returned radiance on the floor â
1017 * paying two 3D scattering-LUT samples, the single-Mie extrapolation and
1018 * both phase functions (a pow among them) for a value nothing reads. Whether a
1019 * driver's optimizer notices is up to the driver; this is the same control
1020 * flow and the same lookup with the dead half deleted, so the value is
1021 * bit-identical either way.
1022 */
1023fn GetSkyTransmittance(
1024	atm: Atm,
1025	transmittance_texture: texture_2d<f32>,
1026	camera_in: vec3f, view_ray: vec3f) -> vec3f {
1027	var camera = camera_in;
1028	var r = length(camera);
1029	var rmu = dot(camera, view_ray);

1030	let disc = rmu * rmu - r * r + atm.top_radius * atm.top_radius;
1031	var distance_to_top_atmosphere_boundary = -1.0;
1032	if (disc >= 0.0) {
1033		distance_to_top_atmosphere_boundary = -rmu - sqrt(disc);
1034	}
1035
1036	if (distance_to_top_atmosphere_boundary > 0.0) {
1037		camera = camera + view_ray * distance_to_top_atmosphere_boundary;
1038		r = atm.top_radius;
1039		rmu += distance_to_top_atmosphere_boundary;
1040	} else if (r > atm.top_radius) {
1041		return vec3f(0.0);
1042	}
1043
1044	let mu = rmu / r;
1045	if (RayIntersectsGround(atm, r, mu)) {
1046		return vec3f(0.0);
1047	}
1048	return GetTransmittanceToTopAtmosphereBoundary(
1049		atm, transmittance_texture, r, mu);
1050}
1051
1052fn GetSunAndSkyIrradiance(
1053	atm: Atm,
1054	transmittance_texture: texture_2d<f32>,
1055	irradiance_texture: texture_2d<f32>,
1056	p: vec3f, normal: vec3f, sun_direction: vec3f,
1057	sky_irradiance: ptr<function, vec3f>) -> vec3f {
1058	let r = length(p);
1059	let mu_s = dot(p, sun_direction) / r;
1060
1061	*sky_irradiance = GetIrradiance(atm, irradiance_texture, r, mu_s) *
1062		(1.0 + dot(normal, p) / r) * 0.5;
1063
1064	return atm.solar_irradiance *
1065		GetTransmittanceToSun(atm, transmittance_texture, r, mu_s) *
1066		max(dot(normal, sun_direction), 0.0);
1067}
1068
1069// atmosphere.glsl wrappers: radiance -> luminance via the spectral factors.
1070fn GetSkyRadianceLum(
1071	atm: Atm,
1072	transmittance_texture: texture_2d<f32>,
1073	scattering_texture: texture_3d<f32>,
1074	scattering_sampler: sampler,
1075	camera: vec3f, view_ray: vec3f, shadow_length: f32,
1076	sun_direction: vec3f, transmittance: ptr<function, vec3f>) -> vec3f {
1077	return GetSkyRadiance(atm, transmittance_texture, scattering_texture,
1078		scattering_sampler, camera, view_ray, shadow_length, sun_direction,
1079		transmittance) * atm.sky_spectral_radiance_to_luminance;
1080}
1081
1082fn GetSunAndSkyIrradianceLum(
1083	atm: Atm,
1084	transmittance_texture: texture_2d<f32>,
1085	irradiance_texture: texture_2d<f32>,
1086	p: vec3f, normal: vec3f, sun_direction: vec3f,
1087	sky_irradiance: ptr<function, vec3f>) -> vec3f {
1088	let sun_irradiance = GetSunAndSkyIrradiance(
1089		atm, transmittance_texture, irradiance_texture, p, normal,
1090		sun_direction, sky_irradiance);
1091	*sky_irradiance = *sky_irradiance * atm.sky_spectral_radiance_to_luminance;
1092	return sun_irradiance * atm.sun_spectral_radiance_to_luminance;
1093}
1094
1095/**
1096 * The sky half of GetSunAndSkyIrradianceLum. Same story as
1097 * GetSkyTransmittance: the clouds march reads only the sky out-param and
1098 * discards the sun return, whose GetTransmittanceToSun is a second manual
1099 * bilinear (four texel loads) plus a smoothstep. Multiplication order is
1100 * kept exactly as the two-function chain evaluates it, so the result is
1101 * bit-identical.
1102 */
1103fn GetSkyIrradianceLum(
1104	atm: Atm,
1105	irradiance_texture: texture_2d<f32>,
1106	p: vec3f, normal: vec3f, sun_direction: vec3f) -> vec3f {
1107	let r = length(p);
1108	let mu_s = dot(p, sun_direction) / r;
1109	return GetIrradiance(atm, irradiance_texture, r, mu_s) *
1110		(1.0 + dot(normal, p) / r) * 0.5 *
1111		atm.sky_spectral_radiance_to_luminance;
1112}
1113
1114// Rebuild the Atm struct from the packed uniforms the TSL entries receive
1115// (density profiles are precompute-only and stay zeroed).
1116fn UnpackAtm(
1117	solar_irradiance: vec3f,
1118	rayleigh_scattering: vec3f,
1119	mie_scattering: vec3f,
1120	sky_srtl: vec3f,
1121	sun_srtl: vec3f,
1122	// x: sun_angular_radius, y: bottom_radius, z: top_radius, w: mie_phase_g
1123	scalars: vec4f,
1124	mu_s_min: f32) -> Atm {
1125	var atm: Atm;
1126	atm.solar_irradiance = solar_irradiance;
1127	atm.rayleigh_scattering = rayleigh_scattering;
1128	atm.mie_scattering = mie_scattering;
1129	atm.sky_spectral_radiance_to_luminance = sky_srtl;
1130	atm.sun_spectral_radiance_to_luminance = sun_srtl;
1131	atm.sun_angular_radius = scalars.x;
1132	atm.bottom_radius = scalars.y;

1133	atm.top_radius = scalars.z;
1134	atm.mie_phase_function_g = scalars.w;
1135	atm.mu_s_min = mu_s_min;
1136	return atm;
1137}
1138
1139// ray.vert's interpolation, reproduced exactly: the reference normalizes the
1140// corner rays in the VERTEX shader, interpolates the unit vectors, then
1141// renormalizes per fragment â bilinear-mixing the four unit corner rays here
1142// is that same math (not the same as unprojecting the fragment directly).
1143fn SkyViewRay(
1144	uv: vec2f, ray00: vec3f, ray10: vec3f, ray01: vec3f, ray11: vec3f) -> vec3f {
1145	return normalize(mix(mix(ray00, ray10, uv.x), mix(ray01, ray11, uv.x), uv.y));
1146}
1147`,Bg=`
1148	let atm = UnpackAtm(solarIrradiance, rayleighScattering, mieScattering,
1149		skySrtl, sunSrtl, atmScalars, muSMin);
1150	let earth_center = vec3f(0.0, -atm.bottom_radius, 0.0);
1151	let camera = cameraPos - earth_center;
1152	let sun_dir = normalize(sunDir);
1153	let view_ray = SkyViewRay(uv, ray00, ray10, ray01, ray11);
1154
1155	var transmittance: vec3f;
1156	let sky = GetSkyRadianceLum(atm, transmittanceTex, scatteringTex,
1157		scatteringSamp, camera, view_ray, 0.0, sun_dir, &transmittance);
1158
1159	return vec4f(min(sky, vec3f(${Yi})), 1.0);
1160`,Nh=`
1161fn mod289v4(x: vec4f) -> vec4f { return x - floor(x * (1.0 / 289.0)) * 289.0; }
1162
1163fn permuteV4(x: vec4f) -> vec4f { return mod289v4(((x * 34.0) + 10.0) * x); }
1164
1165fn taylorInvSqrt(r: vec4f) -> vec4f { return 1.79284291400159 - 0.85373472095314 * r; }
1166
1167fn mod289v3(x: vec3f) -> vec3f { return x - floor(x * (1.0 / 289.0)) * 289.0; }
1168
1169fn simplexNoise(v: vec3f) -> f32 {
1170	let C = vec2f(1.0 / 6.0, 1.0 / 3.0);
1171	let D = vec4f(0.0, 0.5, 1.0, 2.0);
1172
1173	// First corner
1174	var i = floor(v + dot(v, C.yyy));
1175	let x0 = v - i + dot(i, C.xxx);
1176
1177	// Other corners
1178	let g = step(x0.yzx, x0.xyz);
1179	let l = 1.0 - g;
1180	let i1 = min(g.xyz, l.zxy);
1181	let i2 = max(g.xyz, l.zxy);
1182
1183	let x1 = x0 - i1 + C.xxx;
1184	let x2 = x0 - i2 + C.yyy;
1185	let x3 = x0 - D.yyy;
1186
1187	// Permutations
1188	i = mod289v3(i);
1189	let p = permuteV4(permuteV4(permuteV4(
1190		i.z + vec4f(0.0, i1.z, i2.z, 1.0)) +
1191		i.y + vec4f(0.0, i1.y, i2.y, 1.0)) +
1192		i.x + vec4f(0.0, i1.x, i2.x, 1.0));
1193
1194	let n_ = 0.142857142857;
1195	let ns = n_ * D.wyz - D.xzx;
1196
1197	let j = p - 49.0 * floor(p * ns.z * ns.z);
1198
1199	let x_ = floor(j * ns.z);
1200	let y_ = floor(j - 7.0 * x_);
1201
1202	let x = x_ * ns.x + ns.yyyy;
1203	let y = y_ * ns.x + ns.yyyy;
1204	let h = 1.0 - abs(x) - abs(y);
1205
1206	let b0 = vec4f(x.xy, y.xy);
1207	let b1 = vec4f(x.zw, y.zw);
1208
1209	let s0 = floor(b0) * 2.0 + 1.0;
1210	let s1 = floor(b1) * 2.0 + 1.0;
1211	let sh = -step(h, vec4f(0.0));
1212
1213	let a0 = b0.xzyw + s0.xzyw * sh.xxyy;
1214	let a1 = b1.xzyw + s1.xzyw * sh.zzww;
1215
1216	var p0 = vec3f(a0.xy, h.x);
1217	var p1 = vec3f(a0.zw, h.y);
1218	var p2 = vec3f(a1.xy, h.z);
1219	var p3 = vec3f(a1.zw, h.w);
1220
1221	// Normalise gradients
1222	let norm = taylorInvSqrt(vec4f(dot(p0, p0), dot(p1, p1), dot(p2, p2), dot(p3, p3)));
1223	p0 *= norm.x;
1224	p1 *= norm.y;
1225	p2 *= norm.z;
1226	p3 *= norm.w;
1227
1228	// Mix final noise value
1229	var m = max(0.5 - vec4f(dot(x0, x0), dot(x1, x1), dot(x2, x2), dot(x3, x3)), vec4f(0.0));
1230	m = m * m;
1231	return 105.0 * dot(m * m, vec4f(dot(p0, x0), dot(p1, x1), dot(p2, x2), dot(p3, x3)));
1232}
1233
1234fn simplexFBM(x: vec3f, octaves: i32, freq_in: f32) -> f32 {
1235	var final_: f32 = 0.0;
1236	var denom: f32 = 0.0;
1237	var amp: f32 = 1.0;
1238	var freq = freq_in;
1239
1240	for (var i: i32 = 0; i < octaves; i++) {
1241		final_ += amp * simplexNoise(x * freq);
1242		denom += amp;
1243
1244		freq *= 2.0;
1245		amp *= 0.5;
1246	}
1247
1248	return final_ / denom;
1249}
1250
1251fn mod7v3(x: vec3f) -> vec3f { return x - floor(x * (1.0 / 7.0)) * 7.0; }
1252
1253fn permuteV3(x: vec3f) -> vec3f { return mod289v3((34.0 * x + 10.0) * x); }
1254
1255fn worleyNoise(P: vec3f) -> f32 {
1256	let K = 0.142857142857;
1257	let Ko = 0.428571428571;
1258	let K2 = 0.020408163265306;
1259	let Kz = 0.166666666667;
1260	let Kzo = 0.416666666667;
1261	let jitter = 1.0;
1262
1263	let Pi = mod289v3(floor(P));
1264	let Pf = fract(P) - 0.5;
1265
1266	let Pfx = Pf.x + vec3f(1.0, 0.0, -1.0);
1267	let Pfy = Pf.y + vec3f(1.0, 0.0, -1.0);
1268	let Pfz = Pf.z + vec3f(1.0, 0.0, -1.0);
1269
1270	let p = permuteV3(Pi.x + vec3f(-1.0, 0.0, 1.0));
1271	let p1 = permuteV3(p + Pi.y - 1.0);
1272	let p2 = permuteV3(p + Pi.y);
1273	let p3 = permuteV3(p + Pi.y + 1.0);
1274
1275	let p11 = permuteV3(p1 + Pi.z - 1.0);
1276	let p12 = permuteV3(p1 + Pi.z);
1277	let p13 = permuteV3(p1 + Pi.z + 1.0);
1278
1279	let p21 = permuteV3(p2 + Pi.z - 1.0);
1280	let p22 = permuteV3(p2 + Pi.z);
1281	let p23 = permuteV3(p2 + Pi.z + 1.0);
1282
1283	let p31 = permuteV3(p3 + Pi.z - 1.0);
1284	let p32 = permuteV3(p3 + Pi.z);
1285	let p33 = permuteV3(p3 + Pi.z + 1.0);
1286
1287	let ox11 = fract(p11 * K) - Ko;
1288	let oy11 = mod7v3(floor(p11 * K)) * K - Ko;
1289	let oz11 = floor(p11 * K2) * Kz - Kzo;
1290
1291	let ox12 = fract(p12 * K) - Ko;
1292	let oy12 = mod7v3(floor(p12 * K)) * K - Ko;
1293	let oz12 = floor(p12 * K2) * Kz - Kzo;
1294
1295	let ox13 = fract(p13 * K) - Ko;
1296	let oy13 = mod7v3(floor(p13 * K)) * K - Ko;
1297	let oz13 = floor(p13 * K2) * Kz - Kzo;
1298
1299	let ox21 = fract(p21 * K) - Ko;
1300	let oy21 = mod7v3(floor(p21 * K)) * K - Ko;
1301	let oz21 = floor(p21 * K2) * Kz - Kzo;
1302
1303	let ox22 = fract(p22 * K) - Ko;
1304	let oy22 = mod7v3(floor(p22 * K)) * K - Ko;
1305	let oz22 = floor(p22 * K2) * Kz - Kzo;
1306
1307	let ox23 = fract(p23 * K) - Ko;
1308	let oy23 = mod7v3(floor(p23 * K)) * K - Ko;
1309	let oz23 = floor(p23 * K2) * Kz - Kzo;
1310
1311	let ox31 = fract(p31 * K) - Ko;
1312	let oy31 = mod7v3(floor(p31 * K)) * K - Ko;
1313	let oz31 = floor(p31 * K2) * Kz - Kzo;
1314
1315	let ox32 = fract(p32 * K) - Ko;
1316	let oy32 = mod7v3(floor(p32 * K)) * K - Ko;
1317	let oz32 = floor(p32 * K2) * Kz - Kzo;
1318
1319	let ox33 = fract(p33 * K) - Ko;
1320	let oy33 = mod7v3(floor(p33 * K)) * K - Ko;
1321	let oz33 = floor(p33 * K2) * Kz - Kzo;
1322
1323	let dx11 = Pfx + jitter * ox11;
1324	let dy11 = Pfy.x + jitter * oy11;
1325	let dz11 = Pfz.x + jitter * oz11;
1326
1327	let dx12 = Pfx + jitter * ox12;
1328	let dy12 = Pfy.x + jitter * oy12;
1329	let dz12 = Pfz.y + jitter * oz12;
1330
1331	let dx13 = Pfx + jitter * ox13;
1332	let dy13 = Pfy.x + jitter * oy13;
1333	let dz13 = Pfz.z + jitter * oz13;
1334
1335	let dx21 = Pfx + jitter * ox21;
1336	let dy21 = Pfy.y + jitter * oy21;
1337	let dz21 = Pfz.x + jitter * oz21;
1338
1339	let dx22 = Pfx + jitter * ox22;
1340	let dy22 = Pfy.y + jitter * oy22;
1341	let dz22 = Pfz.y + jitter * oz22;
1342
1343	let dx23 = Pfx + jitter * ox23;
1344	let dy23 = Pfy.y + jitter * oy23;
1345	let dz23 = Pfz.z + jitter * oz23;
1346
1347	let dx31 = Pfx + jitter * ox31;
1348	let dy31 = Pfy.z + jitter * oy31;
1349	let dz31 = Pfz.x + jitter * oz31;
1350
1351	let dx32 = Pfx + jitter * ox32;
1352	let dy32 = Pfy.z + jitter * oy32;
1353	let dz32 = Pfz.y + jitter * oz32;
1354
1355	let dx33 = Pfx + jitter * ox33;
1356	let dy33 = Pfy.z + jitter * oy33;
1357	let dz33 = Pfz.z + jitter * oz33;
1358
1359	let d11 = dx11 * dx11 + dy11 * dy11 + dz11 * dz11;
1360	let d12 = dx12 * dx12 + dy12 * dy12 + dz12 * dz12;
1361	let d13 = dx13 * dx13 + dy13 * dy13 + dz13 * dz13;
1362	let d21 = dx21 * dx21 + dy21 * dy21 + dz21 * dz21;
1363	let d22 = dx22 * dx22 + dy22 * dy22 + dz22 * dz22;
1364	let d23 = dx23 * dx23 + dy23 * dy23 + dz23 * dz23;
1365	let d31 = dx31 * dx31 + dy31 * dy31 + dz31 * dz31;
1366	let d32 = dx32 * dx32 + dy32 * dy32 + dz32 * dz32;
1367	let d33 = dx33 * dx33 + dy33 * dy33 + dz33 * dz33;
1368
1369	let d1 = min(min(d11, d12), d13);
1370	let d2 = min(min(d21, d22), d23);
1371	let d3 = min(min(d31, d32), d33);
1372	var d = min(min(d1, d2), d3);
1373	let dx = min(min(d.x, d.y), d.z);
1374	return sqrt(dx);
1375}
1376`,Fg=`
1377	let atm = UnpackAtm(solarIrradiance, rayleighScattering, mieScattering,
1378		skySrtl, sunSrtl, atmScalars, muSMin);
1379
1380	var ctx: CloudsCtx;
1381	ctx.maxDistance = cloudsParamsA.x;
1382	ctx.sigmaS = cloudsParamsA.y;
1383	ctx.sigmaA = cloudsParamsA.z;
1384	ctx.cloudLayerThickness = cloudsParamsA.w;
1385	ctx.cloudLayerBottom = cloudsParamsB.x;
1386	ctx.highCloudsHeight = cloudsParamsB.y;
1387	ctx.highCloudsScale = cloudsParamsB.z;
1388	ctx.weatherMapScale = cloudsParamsB.w;
1389	ctx.baseNoiseScale = cloudsParamsC.x;
1390	ctx.detailNoiseScale = cloudsParamsC.y;
1391	ctx.cirrusDensity = cloudsParamsC.z;
1392	ctx.altoDensity = cloudsParamsC.w;
1393	ctx.windSpeed = cloudsParamsD.x;
1394	ctx.weatherMapBlend = cloudsParamsD.y;
1395	ctx.time = cloudsParamsD.z;
1396	ctx.minStep = cloudsParamsD.w;
1397	ctx.sigmaT = ctx.sigmaA + ctx.sigmaS;
1398	ctx.fogFactor = ctx.maxDistance / 6.0;
1399	ctx.bottomRadius = atm.bottom_radius;
1400	ctx.sunDir = normalize(sunDir);
1401	ctx.earthCenter = vec3f(0.0, -atm.bottom_radius, 0.0);
1402
1403	let rd = SkyViewRay(uv, ray00, ray10, ray01, ray11);
1404
1405	let volumetric = RaymarchVolumetricCloud(ctx, atm,
1406		transmittanceTex, scatteringTex, scatteringSamp, irradianceTex,
1407		baseNoiseTex, noiseSamp, detailNoiseTex,
1408		weatherCurTex, weatherSamp, weatherNextTex,
1409		cameraPos, rd);
1410	let hightAlt = HighAltitudeCloud(ctx, atm,
1411		transmittanceTex, scatteringTex, scatteringSamp,
1412		highCloudsTex, weatherSamp,
1413		cameraPos, rd);
1414
1415	var cloud = volumetric;
1416	cloud = vec4f(cloud.rgb + (1.0 - cloud.a) * hightAlt.rgb,
1417		cloud.a + (1.0 - cloud.a) * hightAlt.a);
1418
1419	return vec4f(min(cloud.rgb, vec3f(${Yi})), cloud.a);
1420`,Lg=`
1421	let atm = UnpackAtm(solarIrradiance, rayleighScattering, mieScattering,
1422		skySrtl, sunSrtl, atmScalars, muSMin);
1423	let earth_center = vec3f(0.0, -atm.bottom_radius, 0.0);
1424	let camera = cameraPos - earth_center;
1425	let sun_dir = normalize(sunDir);
1426
1427	let azimuth = (uv.x - 0.5) * 2.0 * PI;
1428	let latitude = (uv.y - 0.5) * PI;
1429	let cosLat = cos(latitude);
1430	let rd = vec3f(cosLat * cos(azimuth), sin(latitude), cosLat * sin(azimuth));
1431
1432	var transmittance: vec3f;
1433	let sky = GetSkyRadianceLum(atm, transmittanceTex, scatteringTex,
1434		scatteringSamp, camera, rd, 0.0, sun_dir, &transmittance);
1435
1436	var cloud = vec4f(0.0);
1437	if (cloudsOn > 0.5) {
1438		var ctx: CloudsCtx;
1439		ctx.maxDistance = cloudsParamsA.x;
1440		ctx.sigmaS = cloudsParamsA.y;
1441		ctx.sigmaA = cloudsParamsA.z;
1442		ctx.cloudLayerThickness = cloudsParamsA.w;
1443		ctx.cloudLayerBottom = cloudsParamsB.x;
1444		ctx.highCloudsHeight = cloudsParamsB.y;
1445		ctx.highCloudsScale = cloudsParamsB.z;
1446		ctx.weatherMapScale = cloudsParamsB.w;
1447		ctx.baseNoiseScale = cloudsParamsC.x;
1448		ctx.detailNoiseScale = cloudsParamsC.y;
1449		ctx.cirrusDensity = cloudsParamsC.z;
1450		ctx.altoDensity = cloudsParamsC.w;
1451		ctx.windSpeed = cloudsParamsD.x;
1452		ctx.weatherMapBlend = cloudsParamsD.y;
1453		ctx.time = cloudsParamsD.z;
1454		ctx.minStep = cloudsParamsD.w;
1455		ctx.sigmaT = ctx.sigmaA + ctx.sigmaS;
1456		ctx.fogFactor = ctx.maxDistance / 6.0;
1457		ctx.bottomRadius = atm.bottom_radius;
1458		ctx.sunDir = sun_dir;
1459		ctx.earthCenter = earth_center;
1460
1461		let volumetric = RaymarchVolumetricCloud(ctx, atm,
1462			transmittanceTex, scatteringTex, scatteringSamp, irradianceTex,
1463			baseNoiseTex, noiseSamp, detailNoiseTex,
1464			weatherCurTex, weatherSamp, weatherNextTex,
1465			cameraPos, rd);
1466		let hightAlt = HighAltitudeCloud(ctx, atm,
1467			transmittanceTex, scatteringTex, scatteringSamp,
1468			highCloudsTex, weatherSamp,
1469			cameraPos, rd);
1470		cloud = volumetric;
1471		cloud = vec4f(cloud.rgb + (1.0 - cloud.a) * hightAlt.rgb,
1472			cloud.a + (1.0 - cloud.a) * hightAlt.a);
1473	}
1474
1475	let WHITE_POINT: f32 = 11.07;
1476	var color = min(sky, vec3f(${Yi})) * (1.0 - cloud.a) +
1477		min(cloud.rgb, vec3f(${Yi}));
1478	color = Hable(color, exposure, WHITE_POINT);
1479	color = pow(color, vec3f(1.0 / gamma));
1480
1481	return vec4f(color, 1.0);
1482`,Uu=`
1483fn HableTonemap(x: vec3f) -> vec3f {
1484	let A = 0.15;
1485	let B = 0.50;
1486	let C = 0.10;
1487	let D = 0.20;
1488	let E = 0.02;
1489	let F = 0.30;
1490	return ((x * (A * x + C * B) + D * E) / (x * (A * x + B) + D * F)) - E / F;
1491}
1492
1493fn Hable(color: vec3f, exposure: f32, whitePoint: f32) -> vec3f {
1494	return HableTonemap(color * exposure) / HableTonemap(vec3f(whitePoint));
1495}
1496`,Ig=`
1497${Nh}
1498fn remap(value: f32, min1: f32, max1: f32, min2: f32, max2: f32) -> f32 {
1499	return min2 + (value - min1) * (max2 - min2) / (max1 - min1);
1500}
1501
1502@group(0) @binding(0) var outNoise: texture_storage_3d<rgba16float, write>;
1503
1504// The reference dispatches 8x8x8 workgroups; WebGPU's default
1505// maxComputeInvocationsPerWorkgroup is 256, so this port uses 4x4x4 (the
1506// driver dispatches size/4 groups â same texel coverage, same math).
1507@compute @workgroup_size(4, 4, 4)
1508fn main(@builtin(global_invocation_id) gid: vec3u) {
1509	let id = vec3i(gid);
1510	let size = vec3i(textureDimensions(outNoise));
1511	if (any(id >= size)) {
1512		return;
1513	}
1514
1515	let f = vec3f(id);
1516
1517	let p = simplexFBM(f, 4, 0.25) * 0.5 + 0.5;
1518	let w = 1.0 - worleyNoise(f * 0.125) / 0.866;
1519
1520	var result: vec4f;
1521	result.r = remap(p, 0.0, 1.0, w, 1.0);
1522	result.g = worleyNoise(f * 0.25);
1523	result.b = worleyNoise(f * 0.5);
1524	result.a = worleyNoise(f);
1525
1526	textureStore(outNoise, id, result);
1527}
1528`,Dg=`
1529${Nh}
1530@group(0) @binding(0) var outNoise: texture_storage_3d<rgba16float, write>;
1531
1532// The reference dispatches 8x8x8 workgroups; WebGPU's default
1533// maxComputeInvocationsPerWorkgroup is 256, so this port uses 4x4x4 (the
1534// driver dispatches size/4 groups â same texel coverage, same math).
1535@compute @workgroup_size(4, 4, 4)
1536fn main(@builtin(global_invocation_id) gid: vec3u) {
1537	let id = vec3i(gid);
1538	let size = vec3i(textureDimensions(outNoise));
1539	if (any(id >= size)) {
1540		return;
1541	}
1542
1543	let f = vec3f(id);
1544
1545	var result: vec4f;
1546	result.r = 1.0 - worleyNoise(f * 0.25);
1547	result.g = 1.0 - worleyNoise(f * 0.5);
1548	result.b = 1.0 - worleyNoise(f);
1549	result.a = 1.0;
1550
1551	textureStore(outNoise, id, result);
1552}
1553`,Ce=Math.fround,ss=360,Ug=.5*Math.PI/180,kr=1e3,Og=[1.11776,1.14259,1.01249,1.14716,1.72765,1.73054,1.6887,1.61253,1.91198,2.03474,2.02042,2.02212,1.93377,1.95809,1.91686,1.8298,1.8685,1.8931,1.85149,1.8504,1.8341,1.8345,1.8147,1.78158,1.7533,1.6965,1.68194,1.64654,1.6048,1.52143,1.55622,1.5113,1.474,1.4482,1.41018,1.36775,1.34188,1.31429,1.28303,1.26758,1.2367,1.2082,1.18737,1.14683,1.12362,1.1058,1.07124,1.04992],Gg=[118e-29,2182e-31,2818e-31,6636e-31,1527e-30,2763e-30,552e-29,8451e-30,1582e-29,2316e-29,3669e-29,4924e-29,7752e-29,9016e-29,148e-27,1602e-28,2139e-28,2755e-28,3091e-28,35e-26,4266e-28,4672e-28,4398e-28,4701e-28,5019e-28,4305e-28,374e-27,3215e-28,2662e-28,2238e-28,1852e-28,1473e-28,1209e-28,9423e-29,7455e-29,6566e-29,5105e-29,415e-28,4228e-29,3237e-29,2451e-29,2801e-29,2534e-29,1624e-29,1465e-29,2078e-29,1383e-29,7105e-30],Ou=[360,1299e-7,3917e-9,6061e-7,365,2321e-7,6965e-9,.001086,370,4149e-7,1239e-8,.001946,375,7416e-7,2202e-8,.003486,380,.001368,39e-6,.006450001,385,.002236,64e-6,.01054999,390,.004243,12e-5,.02005001,395,.00765,217e-6,.03621,400,.01431,396e-6,.06785001,405,.02319,64e-5,.1102,410,.04351,.00121,.2074,415,.07763,.00218,.3713,420,.13438,.004,.6456,425,.21477,.0073,1.0390501,430,.2839,.0116,1.3856,435,.3285,.01684,1.62296,440,.34828,.023,1.74706,445,.348

vendor: 4,405 bytes, line 1553

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1553d++){let m=G(G(G(s+d)+a)%a),h=G(G(G(i+u)+a)%a),[f,p]=Hg(m,h,r),_=G(f+d),y=G(p+u),g=G(_-n),x=G(y-l),v=G(Math.sqrt(G(G(g*g)+G(x*x))));v<o&&(o=v)}return o}function br(e,t,a){let r=G(G(a-e)/G(t-e));return r<0&&(r=0),r>1&&(r=1),G(G(r*r)*G(3-G(2*r)))}function Xu(e,t,a){return G(G(e*G(1-a))+G(t*a))}function As(e){return Math.trunc(e)>>>0}var Fh=new Float32Array(1),Kg=new Uint32Array(Fh.buffer);function el(e){Fh[0]=e;let t=Kg[0],a=t>>>16&32768,r=t>>>23&255,s=8388607&t;if(r===255)return 31744|a|(s!==0?512:0);let i=r-112;return i>=31?31744|a:i<=0?a:(a|i<<10|s>>>13)+(s>>>12&1)}var Tr=new Map;function Xg(e,t){let a=`${e}|${G(t)}`,r=Tr.get(a);if(r!==void 0)return Tr.delete(a),Tr.set(a,r),r;let s=(function(i){let n=new Uint16Array(262144);for(let l=0;l<65536;l++)n[4*l+0]=el(i[3*l+0]),n[4*l+1]=el(i[3*l+1]),n[4*l+2]=el(i[3*l+2]),n[4*l+3]=15360;return n})((function(i,n){switch(n=G(n),i){case"clear":return new Float32Array(196608);case"mostlyClear":return(function(l){let o=new Float32Array(196608),u=As(l);for(let d=0;d<ut;d++)for(let m=0;m<ut;m++){let h=G(d/ut),f=G(m/ut),p=3*(m*ut+d),_=G(G(.5*Kr(3,h,f,24,1,u))+.5);o[p+0]=G(br(G(.45),G(.8),_)*G(.7)),o[p+1]=0,o[p+2]=G(.3)}return o})(n);case"partlyCloudy":return(function(l){let o=new Float32Array(196608),u=G(Math.max(1,As(l)));for(let d=0;d<ut;d++)for(let m=0;m<ut;m++){let h=G(d/ut),f=G(m/ut),p=3*(m*ut+d),_=G(1-Ku(G(24*h),G(24*f),24,l)),y=G(G(.5*Kr(3,h,f,16,u,0))+.5),g=G(y*br(G(.3),1,_)),x=G(Xu(0,G(.35),br(G(.1),G(.4),g))*_);o[p+0]=g,o[p+1]=0,o[p+2]=g<.1?0:x}return o})(n);case"mostlyCloudy":return(function(l){let o=new Float32Array(196608),u=G(Math.max(1,As(l)));for(let d=0;d<ut;d++)for(let m=0;m<ut;m++){let h=G(d/ut),f=G(m/ut),p=3*(m*ut+d),_=G(1-Ku(G(32*h),G(32*f),32,l)),y=G(G(.5*Kr(3,h,f,16,u,0))+.5),g=G(y*br(0,G(.9),_)),x=G(Xu(0,G(.6),br(G(.1),G(.4),g))*_);o[p+0]=g,o[p+1]=0,o[p+2]=g<.1?0:x}return o})(n);case"overcast":return(function(l){let o=new Float32Array(196608),u=As(l);for(let d=0;d<ut;d++)for(let m=0;m<ut;m++){let h=G(d/ut),f=G(m/ut),p=3*(m*ut+d),_=G(G(.5*Kr(3,h,f,16,1,u))+.5);o[p+0]=br(G(.2),1,_),o[p+1]=G(.3),o[p+2]=G(.8)}return o})(n);case"storm":return(function(l){let o=new Float32Array(196608),u=As(l);for(let d=0;d<ut;d++)for(let m=0;m<ut;m++){let h=G(d/ut),f=G(m/ut),p=3*(m*ut+d),_=G(G(.5*Kr(3,h,f,16,1,u))+.5);o[p+0]=br(G(.1),1,_),o[p+1]=G(G(.5*Kr(2,h,f,8,1,u))+.5),o[p+2]=1}return o})(n)}})(e,t));return Tr.size>=8&&Tr.delete(Tr.keys().next().value),Tr.set(a,s),s}var Qg={cirrus:"sky-cirrus.png",alto:"sky-alto.png"};async function Qu(e){let t=fl(Qg[e]),a=await fetch(t,{mode:"cors"});if(!a.ok)throw new Error(`skyAssets: fetching ${t} failed (${a.status})`);return new Uint8Array(await a.arrayBuffer())}async function Zu(e){let t=512,a=await createImageBitmap(new Blob([e],{type:"image/png"}),{colorSpaceConversion:"none"}),r=new OffscreenCanvas(t,t).getContext("2d");if(!r)throw new Error("skyAssets: no 2d context for PNG decode");r.drawImage(a,0,0,t,t),a.close();let s=r.getImageData(0,0,t,t).data,i=new Uint8Array(t*t);for(let n=0;n<t;n++){let l=511-n;for(let o=0;o<t;o++)i[n*t+o]=s[4*(l*t+o)]}return i}var Yu=`
1554const HDRI_PI: f32 = 3.141592653589793;
1555
1556fn HdriRotateByEuler(dir: vec3f, euler: vec3f) -> vec3f {
1557	let cx = cos(euler.x); let sx = sin(euler.x);
1558	let cy = cos(euler.y); let sy = sin(euler.y);
1559	let cz = cos(euler.z); let sz = sin(euler.z);
1560
1561	let rot = mat3x3f(
1562		cy * cz, cy * sz, -sy,
1563		sx * sy * cz - cx * sz, sx * sy * sz + cx * cz, sx * cy,
1564		cx * sy * cz + sx * sz, cx * sy * sz - sx * cz, cx * cy
1565	);
1566	return rot * dir;
1567}
1568
1569/** Direction â equirect uv â Hana's compute_equirectangular_uvs with the v
1570 * term flipped for three's flipY image upload (see the header note; u is
1571 * Hana's exact 1 â (long + Ï)/2Ï). */
1572fn HdriDirToUv(dir0: vec3f, euler: vec3f) -> vec2f {
1573	let dir = HdriRotateByEuler(normalize(dir0), euler);
1574	let longitude = atan2(dir.x, dir.z);
1575	let latitude = asin(clamp(dir.y, -1.0, 1.0));
1576	let u = 1.0 - (longitude + HDRI_PI) / (2.0 * HDRI_PI);
1577	let v = (latitude + HDRI_PI / 2.0) / HDRI_PI;
1578	return vec2f(u, v);
1579}
1580
1581/** Mip level whose texel footprint covers the given angle. Used per tap by
1582 * HdriSampleBlurred so the gaussian rings never undersample the gaps
1583 * between taps (same LOD-selection idea as the reflection layer's
1584 * cone-width blur). 0 when the footprint is smaller than one texel. */
1585fn HdriBlurLod(texWidth: f32, footprintAngle: f32) -> f32 {
1586	let texelsPerRadian = texWidth / (2.0 * HDRI_PI);
1587	return clamp(log2(max(footprintAngle * texelsPerRadian, 1.0)), 0.0, 16.0);
1588}
1589
1590/** Interleaved gradient noise (Jimenez) â the same per-pixel hash family
1591 * the reflection layer's blur uses. Deliberately STATIC here (no frame
1592 * animation, no TAA reliance): the blur must look identical whether or
1593 * not temporal AA runs, so the dither is a fixed spatial pattern. */
1594fn HdriIGN(pix: vec2f) -> f32 {
1595	return fract(
1596		52.9829189 * fract(dot(pix, vec2f(0.06711056, 0.00583715))));
1597}
1598
1599/**
1600 * Gaussian-blurred equirect sample: a 13-tap disc around the ray â center
1601 * plus two hex rings at 1Ï and 2Ï (Ï = half the blur angle), true gaussian
1602 * ring weights (e^0, e^-0.5, e^-2) â with every tap reading a Ï-footprint
1603 * mip so the rings blend seamlessly. Reads like a gaussian of ~Ï instead
1604 * of the boxy bilinear lozenges a bare mip pick produces at large radii;
1605 * a mip pyramid alone is a stack of 2Ã2 box filters.
1606 *
1607 * jitter (x = disc rotation in radians, y = ring radius scale)
1608 * decorrelates the kernel per pixel: a FIXED sparse disc leaves
1609 * tap-replica and mip-interpolation structure â subtle bands parallel to
1610 * strong source edges. The background pass feeds it static per-pixel IGN
1611 * (structured banding becomes fine, temporally stable spatial noise â
1612 * deliberately NOT frame-animated, so nothing depends on TAA); the tiny
1613 * env re-projection passes (0, 1).
1614 */
1615fn HdriSampleBlurred(
1616	envTex: texture_2d<f32>

1616, envSamp: sampler,
1617	dir: vec3f, euler: vec3f, blurAngle: f32, jitter: vec2f) -> vec3f {
1618	let st0 = HdriDirToUv(dir, euler);
1619	if (blurAngle <= 0.0) {
1620		return textureSampleLevel(envTex, envSamp, st0, 0.0).rgb;
1621	}
1622	let sigma = blurAngle * 0.5;
1623	let lod = HdriBlurLod(f32(textureDimensions(envTex, 0).x), sigma);
1624
1625	// Tangent frame around the ray (the offsets live on its normal plane).
1626	let axis = select(
1627		vec3f(0.0, 1.0, 0.0), vec3f(1.0, 0.0, 0.0), abs(dir.y) > 0.99);
1628	let t1 = normalize(cross(axis, dir));
1629	let t2 = cross(dir, t1);
1630
1631	let r1 = sigma * jitter.y;
1632	let r2 = 2.0 * sigma * jitter.y;
1633	let wRing1 = 0.60653066; // e^-0.5, taps at 1Ï
1634	let wRing2 = 0.13533528; // e^-2, taps at 2Ï
1635	var sum = textureSampleLevel(envTex, envSamp, st0, lod).rgb;
1636	var wSum = 1.0;
1637	for (var i = 0u; i < 6u; i = i + 1u) {
1638		// Ring 2 sits on the hex vertices, ring 1 on the rotated midpoints.
1639		let a1 = (f32(i) + 0.5) * (HDRI_PI / 3.0) + jitter.x;
1640		let d1 = normalize(dir + (t1 * cos(a1) + t2 * sin(a1)) * r1);
1641		sum += textureSampleLevel(
1642			envTex, envSamp, HdriDirToUv(d1, euler), lod).rgb * wRing1;
1643		let a2 = f32(i) * (HDRI_PI / 3.0) + jitter.x;
1644		let d2 = normalize(dir + (t1 * cos(a2) + t2 * sin(a2)) * r2);
1645		sum += textureSampleLevel(
1646			envTex, envSamp, HdriDirToUv(d2, euler), lod).rgb * wRing2;
1647		wSum += wRing1 + wRing2;
1648	}
1649	return sum / wSum;
1650}
1651`,rr=64,Ka=32;function tl(e){return Math.pow(e/255,2.2)}var Zg=class{constructor(e,t){this._uRotation=L(new ne),this._uBlurAngle=L(0),this.backgroundMesh=null,this._envTarget=null,this._envQuad=null,this._boundTexture=null,this._lastEnvKey=null,this._sampleTexture=null,this._sourceTexture=null,this._sourceVersion=-1,this._lighting=null,this._lightingKey=null,this._active=!1,this._renderer=e,this._rays=t}get attached(){return this.backgroundMesh?.parent!=null}get active(){return this._active}get environmentTexture(){return this._envTarget?.texture??null}lightingInfo(e){let t=`${e.uuid}|${e.version}`;return t!==this._lightingKey&&(this._lightingKey=t,this._lighting=(function(a){let r;if(Mn(a)){let{data:b,width:M,height:S}=a;r=(C,R)=>{let k=Math.min(M-1,Math.floor((C+.5)/rr*M)),E=Math.min(S-1,Math.floor((R+.5)/Ka*S)),I=4*((S-1-E)*M+k);return[Math.pow(Math.max(Cn.fromHalfFloat(b[I]),0),2.2),Math.pow(Math.max(Cn.fromHalfFloat(b[I+1]),0),2.2),Math.pow(Math.max(Cn.fromHalfFloat(b[I+2]),0),2.2)]}}else{if(typeof document>"u")return null;let b=document.createElement("canvas");b.width=rr,b.height=Ka;let M,S=b.getContext("2d",{willReadFrequently:!0});if(S===null)return null;try{S.drawImage(a,0,0,rr,Ka),M=S.getImageData(0,0,rr,Ka).data}catch{return null}r=(C,R)=>{let k=4*(R*rr+C);return[tl(M[k]),tl(M[k+1]),tl(M[k+2])]}}let s=b=>.2126*b[0]+.7152*b[1]+.0722*b[2],i=(b,M)=>{let S=(M+.5)/Ka*Math.PI,C=Math.PI-(b+.5)/rr*2*Math.PI,R=Math.sin(S);return[R*Math.sin(C),Math.cos(S),R*Math.cos(C)]},n=[0,0,0],l=[0,0,0],o=0,u=0,d=0;for(let b=0;b<Ka;b++){let M=Math.sin((b+.5)/Ka*Math.PI),S=b<16;for(let C=0;C<rr;C++){let R=r(C,b);d=Math.max(d,s(R));let k=S?n:l;k[0]+=R[0]*M,k[1]+=R[1]*M,k[2]+=R[2]*M,S?o+=M:u+=M}}let m=[n[0]/o,n[1]/o,n[2]/o],h=[l[0]/u,l[1]/u,l[2]/u],f=s(m),p=s(h),_=(f*o+p*u)/Math.max(o+u,1e-6),y=.9*d,g=[0,0,0],x=[0,0,0],v=0;for(let b=0;b<Ka;b++){let M=Math.sin((b+.5)/Ka*Math.PI);for(let S=0;S<rr;S++){let C=r(S,b),R=s(C);if(R<y)continue;let k=i(S,b),E=M*R;g[0]+=k[0]*E,g[1]+=k[1]*E,g[2]+=k[2]*E,x[0]+=C[0]*M,x[1]+=C[1]*M,x[2]+=C[2]*M,v+=M}}let V=Math.hypot(g[0],g[1],g[2]),T=v>0?[x[0]/v,x[1]/v,x[2]/v]:[1,1,1],z=s(T);return{skyColor:m,skyLum:f,groundColor:h,groundLum:p,meanLum:_,sunDir:V>1e-4?[g[0]/V,g[1]/V,g[2]/V]:[0,1,0],sunColor:T,sunLum:z,sunPeak:_>1e-6?z/_:1}})(e.image)),this._lighting}_ensureSampleTexture(e){if(this._sampleTexture===null||this._sourceTexture!==e){this._sampleTexture?.dispose();let t=Mn(e.image)?rp(e.image):new Lt(e.image);t.name="sky-hdri-source",t.wrapS=wa,t.wrapT=ns,t.minFilter=Oa,t.magFilter=Ve,t.generateMipmaps=!0,t.flipY=!Mn(e.image),t.needsUpdate=!0,this._sampleTexture=t,this._sourceTexture=e,this._sourceVersion=e.version}else e.version!==this._sourceVersion&&(this._sampleTexture.image=e.image,this._sampleTexture.needsUpdate=!0,this._sourceVersion=e.version);return this._sampleTexture}

1651_buildBackgroundNode(e){return ir(`fn hdriBackground(
1652	uv: vec2f,
1653	ray00: vec3f, ray10: vec3f, ray01: vec3f, ray11: vec3f,
1654	rotation: vec3f, blurAngle: f32,
1655	resolution: vec2f,
1656	envTex: texture_2d<f32>, envSamp: sampler) -> vec4f {
1657	let ray = normalize(
1658		mix(mix(ray00, ray10, uv.x), mix(ray01, ray11, uv.x), 1.0 - uv.y));
1659	// Static per-pixel disc rotation + radius scale â the hex ring is
1660	// 60Â°-symmetric so a third of a turn covers the full phase.
1661	let pix = uv * resolution;
1662	let rotJitter = HdriIGN(pix) * (HDRI_PI / 3.0);
1663	let radJitter = 0.85 + 0.3 * HdriIGN(pix + vec2f(59.0, 37.0));
1664	return vec4f(
1665		HdriSampleBlurred(
1666			envTex, envSamp, ray, rotation, blurAngle,
1667			vec2f(rotJitter, radJitter)),
1668		1.0);
1669}`,[Jr(Yu)])({uv:Fa,ray00:this._rays.ray00,ray10:this._rays.ray10,ray01:this._rays.ray01,ray11:this._rays.ray11,rotation:this._uRotation,blurAngle:this._uBlurAngle,resolution:W.resolution,envTex:re(e),envSamp:Yr(e)})}_ensureBackgroundMesh(e){if(this.backgroundMesh)return this.backgroundMesh;let t=new bd;t.setAttribute("position",new Td(new Float32Array([-1,-1,0,3,-1,0,-1,3,0]),3));let a=new ke;a.name="SplineSkyHdriBackground",a.lights=!1,a.depthWrite=!1,a.depthTest=!1,a.colorNode=this._buildBackgroundNode(e);let r=ir(`fn hdriBackgroundVertex(position: vec3f) -> vec4f {
1670	return vec4f(position.xy, 0.5, 1.0);
1671}`);a.vertexNode=r({position:jl});let s=new wd(t,a);return s.name="SplineSkyHdriBackground",s.userData.splineSkyBackground=!0,s.frustumCulled=!1,s.renderOrder=-1e9,s.matrixAutoUpdate=!1,s.raycast=()=>{},this.backgroundMesh=s,s}_ensureEnvQuad(e){let t=ir(`fn hdriEnvPass(
1672	uv: vec2f,
1673	rotation: vec3f, blurAngle: f32,
1674	envTex: texture_2d<f32>, envSamp: sampler) -> vec4f {
1675	let azimuth = (uv.x - 0.5) * 2.0 * HDRI_PI;
1676	let latitude = (uv.y - 0.5) * HDRI_PI;
1677	let cosLat = cos(latitude);
1678	let rd = vec3f(cosLat * cos(azimuth), sin(latitude), cosLat * sin(azimuth));
1679	return vec4f(
1680		HdriSampleBlurred(
1681			envTex, envSamp, rd, rotation, blurAngle, vec2f(0.0, 1.0)),
1682		1.0);
1683}`,[Jr(Yu)])({uv:Ie(),rotation:this._uRotation,blurAngle:this._uBlurAngle,envTex:re(e),envSamp:Yr(e)});if(this._envQuad===null){let a=new ke;a.name="SplineSkyHdriEnvironmentPass",a.lights=!1,a.fragmentNode=t,this._envQuad=new kt(a)}else{let a=this._envQuad.material;a.fragmentNode=t,a.needsUpdate=!0}}_bindTexture(e){if(this._boundTexture!==e)if(this._boundTexture=e,this._ensureEnvQuad(e),this.backgroundMesh){let t=this.backgroundMesh.material;t.colorNode=this._buildBackgroundNode(e),t.needsUpdate=!0}else this._ensureBackgroundMesh(e)}update(e,t,a,r,s=!0){if(t===null)return void this.detach();this._active=!0,this._uRotation.value.set(0,a??0,0),this._uBlurAngle.value=r;let i=this._ensureSampleTexture(t);this._bindTexture(i);let n=this._ensureBackgroundMesh(i);if(this._envTarget===null){this._envTarget=new Ee(256,128,{type:At,depthBuffer:!1});let u=this._envTarget.texture;u.name="sky-hdri-environment",u.generateMipmaps=!0,u.minFilter=Oa,u.magFilter=Ve,u.wrapS=wa}let l=this._uRotation.value,o=`${i.uuid}|${i.version}|${l.x},${l.y},${l.z}|${r}`;if(o!==this._lastEnvKey){this._lastEnvKey=o;let u=this._renderer,d=u.getRenderTarget();u.setRenderTarget(this._envTarget),this._envQuad.render(this._renderer),u.setRenderTarget(d)}s?n.parent!==e&&(n.parent?.remove(n),e.add(n)):n.parent?.remove(n)}detach(){this._active=!1,this.backgroundMesh?.parent?.remove(this.backgroundMesh)}dispose(){this.detach(),this._envTarget?.dispose(),this._envTarget=null,this._lastEnvKey=null,this._envQuad?.material?.dispose(),this._envQuad=null,this.backgroundMesh?.material?.dispose(),this.backgroundMesh?.geometry.dispose(),this.backgroundMesh=null,this._boundTexture=null,this._sampleTexture?.dispose(),this._sampleTexture=null,this._sourceTexture=null,this._sourceVersion=-1}},Yg=new gt,Ju=new ve,Jg=new at,e_=new at,Ps={maxDistance:128,sigmaS:10,sigmaA:0,cloudLayerThickness:4,cloudLayerBottom:2,highCloudsHeight:8,highCloudsScale:32,weatherMapScale:128,baseNoiseScale:25,detailNoiseScale:1.5},Qr=.3,Zr=.3,ed={clear:[0,0],mostlyClear:[Qr,Zr],partlyCloudy:[Qr,Zr],mostlyCloudy:[Qr,Zr],overcast:[Qr,Zr],storm:[Qr,Zr]},Lh=null;try{let e=new URLSearchParams(window.location.search).get("dbgskystep");e!==null&&e!==""&&Number.isFinite(Number(e))&&(Lh=Math.max(0,Number(e)))}catch{}var Ei=.62,t_={clear:1,mostlyClear:.95,partlyCloudy:.9,mostlyCloudy:.8,overcast:.6,storm:.5},a_={clear:1,mostlyClear:.92,partlyCloudy:.8,mostlyCloudy:.55,overcast:.3,storm:.15},r_={clear:1,mostlyClear:.97,partlyCloudy:.92,mostlyCloudy:.8,overcast:.65,storm:.5},Ih=`
1684	uv: vec2f,
1685	ray00: vec3f, ray10: vec3f, ray01: vec3f, ray11: vec3f,
1686	cameraPos: vec3f, sunDir: vec3f,

1687	solarIrradiance: vec3f, rayleighScattering: vec3f, mieScattering: vec3f,
1688	skySrtl: vec3f, sunSrtl: vec3f, atmScalars: vec4f, muSMin: f32,
1689	transmittanceTex: texture_2d<f32>,
1690	scatteringTex: texture_3d<f32>, scatteringSamp: sampler`,td=`${Ih},
1691	irradianceTex: texture_2d<f32>,
1692	baseNoiseTex: texture_3d<f32>, noiseSamp: sampler,
1693	detailNoiseTex: texture_3d<f32>,
1694	weatherCurTex: texture_2d<f32>, weatherSamp: sampler,
1695	weatherNextTex: texture_2d<f32>,
1696	highCloudsTex: texture_2d<f32>,
1697	cloudsParamsA: vec4f, cloudsParamsB: vec4f,
1698	cloudsParamsC: vec4f, cloudsParamsD: vec4f`,s_=class{constructor(e){this._luts=null,this._baseNoise=null,this._detailNoise=null,this._highCloudsReady=!1,this._skyTarget=null,this._cloudsTarget=null,this._skyQuad=null,this._cloudsQuad=null,this._envTarget=null,this._envQuad=null,this._lastEnvKey=null,this.backgroundMesh=null,this._auxMesh=null,this._auxHidden=[],this._hdri=null,this._uRay00=L(new ne),this._uRay10=L(new ne),this._uRay01=L(new ne),this._uRay11=L(new ne),this._uCameraPos=L(new ne(0,.1,0)),this._uSunDir=L(new ne(0,1,0)),this._uCloudsParamsC=L(new at(Ps.baseNoiseScale,Ps.detailNoiseScale,Qr,Zr)),this._uCloudsParamsD=L(new at(0,1,0,0)),this._uExposure=L(5e-4),this._uGamma=L(2.2),this._uEnvCloudsOn=L(0),this._lastPage=null,this._lastVersion=-1,this._appliedWeather=null,this._appliedSeed=0,this._blendStart=0,this._blendFrom=1,this._presetFrom="partlyCloudy",this._presetTo="partlyCloudy",this._windOffsetKm=0,this._lastFrameTime=null,this._cloudsEnabled=!0,this._cloudsTargetCleared=!1,this._animating=!1,this._lastSkyPassKey=null,this._lastCloudsPassKey=null,this._sunLight=null,this._iblHdriTexture=null,this._iblRotationY=0,this._pmremBumpAt=0,this._pmremPending=!1,this._skyHemi=null,this._userAmbientSuppressed=!1,this._lightingLuts=null,this._lightingLutsRequested=!1,this._noonSunLum=0,this._noonSkyLum=0,this._noonSunRgb=null,this._lightingPage=null,this._lightingOn=!1,this.assetsReady=Promise.resolve(),this.fixedSkySize=null,this.fixedCloudsSize=null,this.fixedTimeSeconds=null,this.numScatteringOrdersOverride=null,this.highCloudDensityOverride=null,this.minStepKmOverride=null,this._cloudsArgs=null,this._cloudsLib=null,this._renderer=e,this._auxiliary=e.auxiliary===!0,this._atmosphereUniforms=(function(a){let r=(function(o){let u=[],d=[],m=[],h=[],f=[],p=[],_=[];for(let y=ss;y<=830;y+=10){let g=.001*y,x=o.mieAngstromBeta/o.mieScaleHeight*Math.pow(g,-0);u.push(y),d.push(Og[(y-ss)/10]),m.push(o.rayleigh*Math.pow(g,-4)),h.push(x*o.mieSingleScatteringAlbedo),f.push(x),p.push(o.maxOzoneNumberDensity*Gg[(y-ss)/10]),_.push(o.groundAlbedo)}return{wavelengths:u,solarIrradiance:d,rayleighScattering:m,mieScattering:h,mieExtinction:f,absorptionExtinction:p,groundAlbedo:_}})(a),{wavelengths:s}=r,i=qu(s,r.solarIrradiance,-3),n=qu(s,r.solarIrradiance,0),l=(o,u)=>[Ce(Ar(s,o,680)*u),Ce(Ar(s,o,550)*u),Ce(Ar(s,o,440)*u)];return{solarIrradiance:l(r.solarIrradiance,1),rayleighScattering:l(r.rayleighScattering,kr),mieScattering:l(r.mieScattering,kr),mieExtinction:l(r.mieExtinction,kr),absorptionExtinction:l(r.absorptionExtinction,kr),groundAlbedo:l(r.groundAlbedo,1),skySpectralRadianceToLuminance:[Ce(i[0]),Ce(i[1]),Ce(i[2])],sunSpectralRadianceToLuminance:[Ce(n[0]),Ce(n[1]),Ce(n[2])],bottomRadius:6360,topRadius:6420,muSMin:Ce(Math.cos(120*Bh)),sunAngularRadius:Ce(Ug),miePhaseG:Ce(a.miePhaseFunctionG),rayleighDensity:Wu(Ai(0,1,-1/a.rayleighScaleHeight,0,0)),mieDensity:Wu(Ai(0,1,-1/a.mieScaleHeight,0,0)),absorptionDensity:new Float32Array([...Ai(25e3,0,0,1/15e3,-2/3),...Ai(0,0,0,-1/15e3,8/3)]),luminanceFromRadiance:new Float32Array([1,0,0,0,1,0,0,0,1])}})(Gu);let t=a=>{let r=new fr(new Uint16Array(262144),ut,ut,Sd,At);return r.wrapS=wa,r.wrapT=wa,r.minFilter=Ve,r.magFilter=Ve,r.name=a,r.needsUpdate=!0,r};this._weatherCur=t("sky-weather-current"),this._weatherNext=t("sky-weather-next"),this._highClouds=new fr(new Uint8Array(524288),512,512,vd,Bi),this._highClouds.wrapS=wa,this._highClouds.wrapT=wa,this._highClouds.minFilter=Ve,this._highClouds.magFilter=Ve,this._highClouds.name="sky-high-clouds",this._highClouds.needsUpdate=!0,this.assetsReady=(async function(){let[a,r]=await Promise.all([Qu("cirrus").then(Zu),Qu("alto").then(Zu)]),s=262144,i=new Uint8Array(2*s);for(let n=0;n<s;n++)i[2*n+0]=a[n],i[2*n+1]=r[n];return i})().then(a=>{this._highClouds.image.data.set(a),this._highClouds.needsUpdate=!0,this._highCloudsReady=!0},()=>{})}get attached(){return this.backgroundMesh?.parent!=null||this._hdri?.active===!0}get animationActive(){return this.attached&&(this._animating||this._pmremPending)}get luts(){return this._luts}readbackLut(e){let t=this._luts;return t?e==="transmittance"?$r(this._renderer,t.transmittance,256,64,1,!1):e==="irradiance"?$r(this._renderer,t.irradiance,64,16,1,!1):$r(this._renderer,t.scattering,256,128,32,!0):Promise.reject(new Error("sky LUTs not ready"))}readbackNoise(e){let t=e==="base"?this._baseNoise:this._detailNoise;if(!t)return Promise.reject(new Error("sky noise not ready"));let a=e==="base"?128:32;return $r(this._renderer,t,a,a,a,!0)}get skyTexture(){return this._skyTarget?.texture??null}get cloudsTexture(){return this._cloudsTarget?.texture??null}get environmentTexture(){return this._hdri?.active===!0?this._hdri.environmentTexture:this._envTarget?.texture??null}get iblTexture(){return this._lightingOn?this._hdri?.active===!0?this._iblHdriTexture:this._envTarget?.texture??null:null}get iblRotationY(){return this._hdri?.active===!0?this._iblRotationY:0}_requestEnvPmrem(e){let t=this._envTarget?.texture;t!==void 0&&(e-this._pmremBumpAt>=150?(this._pmremBumpAt=e,this._pmremPending=!1,t.needsPMREMUpdate=!0):this._pmremPending=!0)}get weatherTextureData(){return{current:this._weatherCur.image.data,next:this._weatherNext.image.data}}_ensureLuts(){this._luts||(this._luts=(function(e,t,a){let r=Ph(e),s=zi(256,64,Xt,"sky-lut-transmittance"),i=[zi(64,16,Xt,"sky-lut-irradiance-a"),zi(64,16,Xt,"sky-lut-irradiance-b")],n=[zs(256,128,32,At,"sky-lut-scattering-a",Ve),zs(256,128,32,At,"sky-lut-scattering-b",Ve)],l=zi(64,16,Xt,"sky-delta-irradiance"),o=zs(256,128,32,Xt,"sky-delta-rayleigh",Oe),u=zs(256,

vendor: 5,883 bytes, line 1698

1698128,32,Xt,"sky-delta-mie",Oe),d=zs(256,128,32,Xt,"sky-delta-density",Oe),m={transmittance:sr(e,s),irr:i.map(E=>sr(e,E)),scat:n.map(E=>sr(e,E)),deltaIrradiance:sr(e,l),deltaRayleigh:sr(e,o),deltaMie:sr(e,u),deltaDensity:sr(e,d)},h=m.deltaRayleigh,f=(function(E){let I=new Float32Array(80),D=0,H=(K,O)=>{I[D++]=K[0],I[D++]=K[1],I[D++]=K[2],I[D++]=O};H(E.solarIrradiance,E.sunAngularRadius),H(E.rayleighScattering,E.bottomRadius),H(E.mieScattering,E.topRadius),H(E.mieExtinction,E.miePhaseG),H(E.absorptionExtinction,E.muSMin),H(E.groundAlbedo,0),H(E.skySpectralRadianceToLuminance,0),H(E.sunSpectralRadianceToLuminance,0);for(let K of[E.rayleighDensity,E.mieDensity,E.absorptionDensity])for(let O=0;O<2;O++){for(let j=0;j<5;j++)I[D++]=K[5*O+j];D+=3}return I})(t),p=r.createBuffer({label:"sky-atm-uniforms",size:f.byteLength,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST});r.queue.writeBuffer(p,0,f.buffer,0,f.byteLength);let _=[],y=E=>(_.push(E),(_.length-1)*ki),g=new Map;for(let[E,I]of Object.entries(Pg)){let D=[{binding:0,visibility:GPUShaderStage.COMPUTE,buffer:{type:"uniform"}},{binding:1,visibility:GPUShaderStage.COMPUTE,buffer:{type:"uniform",hasDynamicOffset:!0}}];I.entries.forEach((O,j)=>{"sampled"in O?D.push({binding:2+j,visibility:GPUShaderStage.COMPUTE,texture:{sampleType:"unfilterable-float",viewDimension:O.sampled}}):D.push({binding:2+j,visibility:GPUShaderStage.COMPUTE,storageTexture:{access:"write-only",format:O.format,viewDimension:O.storage}})});let H=r.createBindGroupLayout({label:`sky-${E}-bgl`,entries:D}),K=r.createComputePipeline({label:`sky-${E}`,layout:r.createPipelineLayout({bindGroupLayouts:[H]}),compute:{module:r.createShaderModule({label:`sky-${E}-wgsl`,code:I.code}),entryPoint:"main"}});g.set(E,{pipeline:K,layout:H})}let x=[],v=0,V=0,T=(E,I)=>[E/8,I/8,1];x.push([{kernel:"transmittance",textures:[m.transmittance],slotOffset:y({blend:[0,0,0,0],layer:0,scatteringOrder:0}),groups:T(256,64)}]),x.push([{kernel:"directIrradiance",textures:[m.irr[v],m.irr[1-v],m.deltaIrradiance,m.transmittance],slotOffset:y({blend:[0,0,0,0],layer:0,scatteringOrder:0}),groups:T(64,16)}]),v=1-v;{let E=[];for(let I=0;I<32;I++)E.push({kernel:"singleScattering",textures:[m.deltaRayleigh,m.deltaMie,m.scat[V],m.scat[1-V],m.transmittance],slotOffset:y({blend:[0,0,0,0],layer:I,scatteringOrder:0}),groups:T(256,128)});x.push(E),V=1-V}for(let E=2;E<=a;E++){{let I=[];for(let D=0;D<32;D++)I.push({kernel:"scatteringDensity",textures:[m.deltaDensity,m.transmittance,m.deltaRayleigh,m.deltaMie,h,m.deltaIrradiance],slotOffset:y({blend:[0,0,0,0],layer:D,scatteringOrder:E}),groups:T(256,128)});x.push(I)}x.push([{kernel:"indirectIrradiance",textures:[m.deltaIrradiance,m.irr[v],m.irr[1-v],m.deltaRayleigh,m.deltaMie,h],slotOffset:y({blend:[0,1,0,0],layer:0,scatteringOrder:E-1}),groups:T(64,16)}]),v=1-v;{let I=[];for(let D=0;D<32;D++)I.push({kernel:"multipleScattering",textures:[h,m.scat[V],m.scat[1-V],m.transmittance,m.deltaDensity],slotOffset:y({blend:[0,1,0,0],layer:D,scatteringOrder:E}),groups:T(256,128)});x.push(I),V=1-V}}let z=new Float32Array(_.length*ki/4);_.forEach((E,I)=>(function(D,H,K){let O=H;D[O+0]=1,D[O+5]=1,D[O+10]=1,D[O+12]=K.blend[0],D[O+13]=K.blend[1],D[O+14]=K.blend[2],D[O+15]=K.blend[3],new Int32Array(D.buffer,D.byteOffset+4*(O+16),2).set([K.layer,K.scatteringOrder])})(z,I*ki/4,E));let b=r.createBuffer({label:"sky-pass-params",size:z.byteLength,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST});r.queue.writeBuffer(b,0,z.buffer,0,z.byteLength);let M=new Map,S=E=>{let I=M.get(E);return I||(I=E.createView({mipLevelCount:1}),M.set(E,I)),I};for(let E of x){let I=r.createCommandEncoder({label:"sky-precompute"}),D=I.beginComputePass();for(let H of E){let{pipeline:K,layout:O}=g.get(H.kernel),j=[{binding:0,resource:{buffer:p}},{binding:1,resource:{buffer:b,size:ki}}];H.textures.forEach(($,me)=>{j.push({binding:2+me,resource:S($)})});let Z=r.createBindGroup({layout:O,entries:j});D.setPipeline(K),D.setBindGroup(0,Z,[H.slotOffset]),D.dispatchWorkgroups(...H.groups)}D.end(),r.queue.submit([I.finish()])}let C=i[v],R=n[V],k=[i[1-v],n[1-V],l,o,u,d];for(let E of k)E.dispose();return p.destroy(),b.destroy(),{transmittance:s,scattering:R,irradiance:C,dispose(){s.dispose(),R.dispose(),C.dispose()}}})(this._renderer,this._atmosphereUniforms,this.numScatteringOrdersOverride??Gu.numScatteringOrders))}_ensureNoise(){if(this._baseNoise)return;let e=this._renderer.backend.device;if(!e)throw new Error("[spline/sky] WebGPU device unavailable");let t=(r,s)=>{let i=new ts(r,r,r);return i.type=At,i.minFilter=Ve,i.magFilter=Ve,i.wrapS=wa,i.wrapT=wa,i.wrapR=wa,i.generateMipmaps=!1,i.mipmapsAutoUpdate=!1,i.name=s,i};this._baseNoise=t(128,"sky-base-noise"),this._detailNoise=t(32,"sky-detail-noise");let a=(r,s,i)=>{this._renderer.initTexture(s);let n=this._renderer.backend.get(s).texture,l=e.createShaderModule({code:r}),o=e.createBindGroupLayout({entries:[{binding:0,visibility:GPUShaderStage.COMPUTE,storageTexture:{access:"write-only",format:"rgba16float",viewDimension:"3d"}}]}),u=e.createComputePipeline({layout:e.createPipelineLayout({bindGroupLayouts:[o]}),compute:{module:l,entryPoint:"main"}}),d=e.createCommandEncoder({label:"sky-noise"}),m=d.beginComputePass();m.setPipeline(u),m.setBindGroup(0,e.createBindGroup({layout:o,entries:[{binding:0,resource:n.createView({mipLevelCount:1})}]}));let h=i/4;m.dispatchWorkgroups(h,h,h),m.end(),e.queue.submit([d.finish()])};a(Ig,this._baseNoise,128),a(Dg,this._detailNoise,32)}_atmArgs(){let e=this._atmosphereUniforms;return{solarIrradiance:L(new ne(...e.solarIrradiance)),rayleighScattering:L(new ne(...e.rayleighScattering)),mieScattering:L(new ne(...e.mieScattering)),skySrtl:L(new ne(...e.skySpectralRadianceToLuminance)),sunSrtl:L(new ne(...e.sunSpectralRadianceToLuminance)),atmScalars:L(new at(e.sunAngularRadius,e.bottomRadius,e.topRadius,e.miePhaseG)),muSMin:L(e.muSMin)}}

1698_ensurePasses(){if(this._skyQuad)return;this._ensureLuts(),this._ensureNoise();let e=this._luts,t={uv:Ie(),ray00:this._uRay00,ray10:this._uRay10,ray01:this._uRay01,ray11:this._uRay11,cameraPos:this._uCameraPos,sunDir:this._uSunDir,...this._atmArgs(),transmittanceTex:re(e.transmittance),scatteringTex:nr(e.scattering),scatteringSamp:Yr(e.scattering)},a=Jr(Gl+Du),r=ir(`fn skyPass(${Ih}) -> vec4f {${Bg}}`,[a]),s=new ke;s.name="SplineSkyPass",s.lights=!1,s.fragmentNode=r(t),this._skyQuad=new kt(s);let i=Jr(Gl+Du+`
1699fn remap(value: f32, min1: f32, max1: f32, min2: f32, max2: f32) -> f32 {
1700	return min2 + (value - min1) * (max2 - min2) / (max1 - min1);
1701}
1702
1703fn saturateF(x: f32) -> f32 {
1704	return clamp(x, 0.0, 1.0);
1705}
1706
1707fn triplanarSample(
1708	t: texture_2d<f32>, s: sampler, p: vec3f, n: vec3f, scale: f32) -> vec4f {
1709	var blend = abs(n);
1710	blend = pow(blend, vec3f(4.0));
1711	blend /= dot(blend, vec3f(1.0));
1712
1713	let cx = textureSampleLevel(t, s, p.yz * scale, 0.0);
1714	let cy = textureSampleLevel(t, s, p.xz * scale, 0.0);
1715	let cz = textureSampleLevel(t, s, p.xy * scale, 0.0);
1716
1717	return cx * blend.x + cy * blend.y + cz * blend.z;
1718}
1719
1720/** Weight below which a triplanar axis is dropped instead of sampled.
1721 *
1722 * The weights are normalized pow(|n|, 4). Inside the cloud shell n is the
1723 * planet's up vector at the sample, and the march reaches at most
1724 * CLOUDS_PARAMS.maxDistance (128 km) over a 6360 km radius: |n.x| and |n.z|
1725 * stay under sin(128 / 6363) = 0.021, so their weights stay under 2e-7 â
1726 * four orders of magnitude under the fp16 quantum of the [0, 1] weather
1727 * channels they scale. The threshold sits well above that worst case on
1728 * purpose: it keeps the branch UNIFORM across the pass (every ray in the
1729 * layer drops the same two axes) instead of flickering per texel, and it
1730 * bounds the error at one threshold per dropped axis. */
1731const TRIPLANAR_WEIGHT_EPS: f32 = 1.0e-5;
1732
1733/**
1734 * triplanarSample with negligible axes skipped â three texture samples down
1735 * to one for any sample inside the cloud shell. This is the hot one: the
1736 * weather map is read once per density sample (twice mid-transition) and there
1737 * are up to seven density samples per lit step, so between this and the blend
1738 * branch below the weather taps go from six per density sample to one. When
1739 * all three axes clear the threshold the accumulation matches triplanarSample
1740 * exactly (adding into a zero-initialized vec4 is exact).
1741 */
1742fn triplanarSampleAdaptive(
1743	t: texture_2d<f32>, s: sampler, p: vec3f, n: vec3f, scale: f32) -> vec4f {
1744	var blend = abs(n);
1745	blend = pow(blend, vec3f(4.0));
1746	blend /= dot(blend, vec3f(1.0));
1747
1748	var c = vec4f(0.0);
1749	if (blend.x > TRIPLANAR_WEIGHT_EPS) {
1750		c += textureSampleLevel(t, s, p.yz * scale, 0.0) * blend.x;
1751	}
1752	if (blend.y > TRIPLANAR_WEIGHT_EPS) {
1753		c += textureSampleLevel(t, s, p.xz * scale, 0.0) * blend.y;
1754	}
1755	if (blend.z > TRIPLANAR_WEIGHT_EPS) {
1756		c += textureSampleLevel(t, s, p.xy * scale, 0.0) * blend.z;
1757	}
1758	return c;
1759}
1760
1761fn raySphereIntersectFar(r0: vec3f, rd: vec3f, s0: vec3f, sr: f32) -> f32 {
1762	let a = dot(rd, rd);
1763	let s0_r0 = r0 - s0;
1764	let b = 2.0 * dot(rd, s0_r0);
1765	let c = dot(s0_r0, s0_r0) - (sr * sr);
1766
1767	let d = b * b - 4.0 * a * c;
1768	if (d < 0.0) {
1769		return -1.0;
1770	}
1771
1772	return (-b + sqrt(d)) / (2.0 * a);
1773}
1774
1775fn raySphereIntersect(r0: vec3f, rd: vec3f, s0: vec3f, sr: f32) -> f32 {
1776	let a = dot(rd, rd);
1777	let s0_r0 = r0 - s0;
1778	let b = 2.0 * dot(rd, s0_r0);
1779	let c = dot(s0_r0, s0_r0) - (sr * sr);
1780
1781	let d = b * b - 4.0 * a * c;
1782	if (d < 0.0) {
1783		return -1.0;
1784	}
1785
1786	let sqrtD = sqrt(d);
1787
1788	let t0 = (-b - sqrtD) / (2.0 * a);
1789	if (t0 > 0.0) {
1790		return t0;
1791	}
1792
1793	let t1 = (-b + sqrtD) / (2.0 * a);
1794	if (t1 > 0.0) {
1795		return t1;
1796	}
1797
1798	return -1.0;
1799}
1800
1801const CLOUD_RAY_STEPS: i32 = 160;
1802const LIGHT_RAY_STEPS: i32 = 6;
1803
1804const cirrusSpeedFactor: f32 = 3.5;
1805const altoSpeedFactor: f32 = 2.0;
1806const detailStrength: f32 = 0.1;
1807const CLOUD_EPS: f32 = 1e-5;
1808
1809struct CloudsCtx {
1810	maxDistance: f32,
1811	sigmaS: f32,
1812	sigmaA: f32,
1813	cloudLayerThickness: f32,
1814	cloudLayerBottom: f32,
1815	highCloudsHeight: f32,
1816	highCloudsScale: f32,
1817	weatherMapScale: f32,
1818	baseNoiseScale: f32,
1819	detailNoiseScale: f32,
1820	cirrusDensity: f32,
1821	altoDensity: f32,
1822	windSpeed: f32,
1823	weatherMapBlend: f32,
1824	time: f32,
1825	/** Floor on the march step length, km. 0 = the reference's fixed
1826	 * CLOUD_RAY_STEPS division of the span (see RaymarchVolumetricCloud). */
1827	minStep: f32,
1828	sigmaT: f32,
1829	fogFactor: f32,
1830	bottomRadius: f32,
1831	sunDir: vec3f,
1832	earthCenter: vec3f,
1833}
1834
1835fn HenyeyGreenstein(g: f32, costh: f32) -> f32 {
1836	return (1.0 - g * g) / (4.0 * PI * pow(1.0 + g * g - 2.0 * g * costh, 1.5));
1837}
1838
1839fn HeightGradient(h: f32, cloudType: f32) -> f32 {
1840	let stratus = smoothstepGl(0.0, 0.07, h) * smoothstepGl(0.2, 0.07, h);
1841	let cumulus = smoothstepGl(0.0, 0.2, h) * smoothstepGl(0.65, 0.35, h);
1842	let cumulonimbus = smoothstepGl(0.0, 0.1, h) * smoothstepGl(0.95, 0.4, h);
1843
1844	let a = 1.0 - cloudType;
1845	let wS = a * a;
1846	let wCu = 2.0 * cloudType * a;
1847	let wCb = cloudType * cloudType;
1848
1849	return wS * stratus + wCu * cumulus + wCb * cumulonimbus;
1850}
1851
1852fn SampleDensity(
1853	ctx: CloudsCtx,
1854	baseNoise: texture_3d<f32>, noiseSamp: sampler,
1855	detailNoise: texture_3d<f32>,
1856	currentWeatherMap: texture_2d<f32>, weatherSamp: sampler,
1857	nextWeatherMap: texture_2d<f32>,
1858	pos: vec3f) -> f32 {
1859	let heightFraction = (length(pos - ctx.earthCenter) - ctx.bottomRadius - ctx.cloudLayerBottom) /
1860		ctx.cloudLayerThickness;
1861	if (heightFraction < 0.0 || heightFraction > 1.0) {
1862		return 0.0;
1863	}
1864
1865	let n = normalize(pos - ctx.earthCenter);
1866	// triplanar fixes 2d texture stretching on sphere
1867	let weatherPos = pos + ctx.time * ctx.windSpeed;
1868	let weatherScale = 1.0 / ctx.weatherMapScale;
1869	// The blend sits pinned at 1 except during the 2 s preset transition, and
1870	// mix(a, b, 1) is b â so outside a transition the "current" map's taps are
1871	// dead weight on every density sample. The blend is a uniform, so this
1872	// branch is coherent across the whole pass; a driver cannot fold it away
1873	// on its own. (At the endpoints the result differs from the mix by at most
1874	// one ulp, and only if the implementation lowers mix to an fma.)
1875	var weather: vec3f;
1876	if (ctx.weatherMapBlend >= 1.0) {
1877		weather = triplanarSampleAdaptive(nextWeatherMap, weatherSamp,
1878			weatherPos, n, weatherScale).rgb;
1879	} else if (ctx.weatherMapBlend <= 0.0) {
1880		weather = triplanarSampleAdaptive(currentWeatherMap, weatherSamp,
1881			weatherPos, n, weatherScale).rgb;
1882	} else {
1883		let weather0 = triplanarSampleAdaptive(currentWeatherMap, weatherSamp,
1884			weatherPos, n, weatherScale).rgb;
1885		let weather1 = triplanarSampleAdaptive(nextWeatherMap, weatherSamp,
1886			weatherPos, n, weatherScale).rgb;
1887		weather = mix(weather0, weather1, ctx.weatherMapBlend);
1888	}
1889
1890	let coverage = weather.r;
1891	let precipitation = weather.g;
1892	let cloudType = weather.b;
1893	let heightGradient = HeightGradient(heightFraction, cloudType);
1894
1895	// Zero coverage: the reference's remap below divides by zero and the
1896	// resulting NaN dies in GLSL's NaN-hostile clamp/compares (density 0).
1897	// WGSL's min/max SWALLOW NaN â saturate(NaN) becomes 1.0, a full-density
1898	// phantom cloud â so the "no coverage, no cloud" outcome is made
1899	// explicit here instead of riding on NaN semantics.
1900	// (Negated form so NaN coverage â the upstream partlyCloudy/seed-0
1901	// weather-map quirk â also lands here instead of resurrecting.)
1902	if (!(coverage > 0.0)) {
1903		return 0.0;
1904	}
1905
1906	// === base form ===
1907	let base_uv = pos / ctx.baseNoiseScale + ctx.time * ctx.windSpeed / ctx.baseNoiseScale;
1908	let baseN = textureSampleLevel(baseNoise, noiseSamp, base_uv, 0.0);
1909	let lowFBM = baseN.g * 0.625 + baseN.b * 0.25 + baseN.a * 0.125;
1910	var baseCloud = remap(baseN.r, -(1.0 - lowFBM), 1.0, 0.0, 1.0);
1911
1912	// === compose ===
1913	baseCloud = remap(baseCloud, 1.0 - coverage, 1.0, 0.0, 1.0);
1914	baseCloud *= coverage;
1915	baseCloud *= heightGradient;
1916
1917	if (baseCloud < 0.0) {
1918		return 0.0;
1919	}
1920
1921	// === details ===
1922	let detail_uv = pos / ctx.detailNoiseScale + ctx.time * ctx.windSpeed / ctx.detailNoiseScale;
1923	let detailN = textureSampleLevel(detailNoise, noiseSamp, detail_uv, 0.0).rgb;
1924	let detailFBM = dot(detailN, vec3f(0.625, 0.25, 0.125));
1925	let detailCloud = remap(baseCloud, detailFBM * detailStrength, 1.0, 0.0, 1.0);
1926
1927	// Detail erosion can push detailCloud negative;

1927 pow(<0, e) is NaN and
1928	// WGSL's NaN-swallowing saturate below would resurrect it to FULL
1929	// density (the GLSL NaN dies in the reference's clamp/compares â
1930	// effective density 0). Negated compare so NaN input lands here too.
1931	if (!(detailCloud > 0.0)) {
1932		return 0.0;
1933	}
1934
1935	let density = pow(detailCloud, mix(1.0, 0.5, precipitation));
1936
1937	return saturateF(density);
1938}
1939
1940const SCATTERING_OCTAVES: i32 = 4;
1941
1942/**
1943 * The per-octave phase terms of MultipleOctaveScattering.
1944 *
1945 * They depend only on mu (the view/sun cosine) and a fixed geometric
1946 * sequence â nothing that varies along a ray. The reference nonetheless
1947 * recomputes all eight Henyey-Greenstein lobes, each with a pow, inside the
1948 * light march: once per LIT step, up to CLOUD_RAY_STEPS times per pixel.
1949 * Hoisted to once per pixel here; same values, same order, so the sum below
1950 * is bit-identical.
1951 */
1952fn OctaveScatteringPhases(mu: f32) -> vec4f {
1953	let phaseAttenuation = 0.2;
1954
1955	var c: f32 = 1.0;
1956	var phases = vec4f(0.0);
1957
1958	for (var i: i32 = 0; i < SCATTERING_OCTAVES; i++) {
1959		phases[i] = mix(
1960			HenyeyGreenstein(-0.2 * c, mu), HenyeyGreenstein(0.8 * c, mu), 0.3);
1961		c *= phaseAttenuation;
1962	}
1963
1964	return phases;
1965}
1966
1967fn MultipleOctaveScattering(
1968	ctx: CloudsCtx, density: f32, phases: vec4f) -> f32 {
1969	let attenuation = 0.5;
1970	let contribution = 0.6;
1971
1972	var a: f32 = 1.0;
1973	var b: f32 = 1.0;
1974
1975	var luminance: f32 = 0.0;
1976
1977	for (var i: i32 = 0; i < SCATTERING_OCTAVES; i++) {
1978		luminance += b * phases[i] * exp(-ctx.sigmaT * density * a);
1979
1980		a *= attenuation;
1981		b *= contribution;
1982	}
1983
1984	return luminance;
1985}
1986
1987fn IntersectCloudLayer(
1988	ctx: CloudsCtx, ro: vec3f, rd: vec3f,
1989	tEnter: ptr<function, f32>, tExit: ptr<function, f32>) -> bool {
1990	let innerRadius = ctx.bottomRadius + ctx.cloudLayerBottom;
1991	let outerRadius = ctx.bottomRadius + ctx.cloudLayerBottom + ctx.cloudLayerThickness;
1992
1993	let tInnerNear = raySphereIntersect(ro, rd, ctx.earthCenter, innerRadius);
1994	let tInnerFar = raySphereIntersectFar(ro, rd, ctx.earthCenter, innerRadius);
1995	let tOuterNear = raySphereIntersect(ro, rd, ctx.earthCenter, outerRadius);
1996	let tOuterFar = raySphereIntersectFar(ro, rd, ctx.earthCenter, outerRadius);
1997
1998	let distToCenter = length(ro - ctx.earthCenter);
1999
2000	if (distToCenter < innerRadius) { // cam below layer
2001		*tEnter = tInnerFar;
2002		*tExit = tOuterFar;
2003	} else if (distToCenter < outerRadius) { // cam inside layer
2004		*tEnter = 0.0;
2005		if (tInnerNear > 0.0) {
2006			*tExit = tInnerNear;
2007		} else {
2008			*tExit = tOuterFar;
2009		}
2010	} else { // cam above layer
2011		if (tOuterNear < 0.0) {
2012			return false;
2013		}
2014		*tEnter = tOuterNear;
2015		if (tInnerNear > 0.0) {
2016			*tExit = tInnerNear;
2017		} else {
2018			*tExit = tOuterFar;
2019		}
2020	}
2021
2022	if (*tExit < 0.0 || *tEnter >= *tExit) {
2023		return false;
2024	}
2025
2026	*tEnter = max(*tEnter, 0.0);
2027	return true;
2028}
2029
2030fn ComputeLightVisibility(
2031	ctx: CloudsCtx,
2032	baseNoise: texture_3d<f32>, noiseSamp: sampler,
2033	detailNoise: texture_3d<f32>,
2034	currentWeatherMap: texture_2d<f32>, weatherSamp: sampler,
2035	nextWeatherMap: texture_2d<f32>,
2036	pos: vec3f, lightDir: vec3f, phases: vec4f) -> f32 {
2037	var tLightEnter: f32;
2038	var tLightExit: f32;
2039	if (!IntersectCloudLayer(ctx, pos, lightDir, &tLightEnter, &tLightExit)) {
2040		return 0.0;
2041	}
2042
2043	tLightExit = min(tLightExit, ctx.cloudLayerThickness * 1.0);
2044
2045	let dt = (tLightExit - tLightEnter) / f32(LIGHT_RAY_STEPS);
2046	let startPos = pos + lightDir * tLightEnter;
2047	var d: f32 = 0.0;
2048
2049	for (var i: i32 = 0; i < LIGHT_RAY_STEPS; i++) {
2050		d += SampleDensity(ctx, baseNoise, noiseSamp, detailNoise,
2051			currentWeatherMap, weatherSamp, nextWeatherMap,
2052			startPos + lightDir * dt * f32(i));
2053	}
2054	d *= dt;
2055
2056	return MultipleOctaveScattering(ctx, d, phases);
2057}
2058
2059fn RaymarchVolumetricCloud(
2060	ctx: CloudsCtx, atm: Atm,
2061	transmittanceTex: texture_2d<f32>,
2062	scatteringTex: texture_3d<f32>, scatteringSamp: sampler,
2063	irradianceTex: texture_2d<f32>,
2064	baseNoise: texture_3d<f32>, noiseSamp: sampler,
2065	detailNoise: texture_3d<f32>,
2066	currentWeatherMap: texture_2d<f32>, weatherSamp: sampler,
2067	nextWeatherMap: texture_2d<f32>,
2068	ro: vec3f, rd: vec3f) -> vec4f {
2069	var tEnter: f32;
2070	var tExit: f32;
2071
2072	if (!IntersectCloudLayer(ctx, ro, rd, &tEnter, &tExit)) {
2073		return vec4f(0.0);
2074	}
2075
2076	tExit = min(tExit, ctx.maxDistance);
2077	let span = tExit - tEnter;
2078
2079	// The reference always divides the span into CLOUD_RAY_STEPS, so the step
2080	// length swings with the ray's elevation: a near-vertical ray crosses the
2081	// 4 km shell in 25 m steps â 8x finer than the 195 m base-noise texel it is
2082	// sampling, so runs of those samples re-read one texel â while a grazing
2083	// 128 km ray gets 800 m and is the case the step budget is actually FOR. A
2084	// floor on the step length spends the full budget on the grazing rays and
2085	// stops over-marching the steep ones. ctx.minStep = 0 reproduces the
2086	// reference exactly (?dbgskystep=0, and CI pins it via minStepKmOverride);
2087	// see MIN_MARCH_STEP_KM for the measured cost/benefit.
2088	let refDt = span / f32(CLOUD_RAY_STEPS);
2089	let dt = max(refDt, ctx.minStep);
2090	let steps = select(
2091		min(CLOUD_RAY_STEPS, i32(ceil(span / dt))),
2092		CLOUD_RAY_STEPS,
2093		ctx.minStep <= 0.0);
2094
2095	var t = max(tEnter, 0.0);
2096	var pos = ro + rd * t;
2097
2098	var radiance = vec3f(0.0);
2099	var totalTransmittance = vec3f(1.0);
2100
2101	let mu = dot(rd, ctx.sunDir);
2102	let horizDist = length(pos - ro);
2103	// Loop-invariant for the whole march (see OctaveScatteringPhases).
2104	let phases = OctaveScatteringPhases(mu);
2105
2106	var sky_transmittance: vec3f;
2107	var sunLight: vec3f;
2108	var skyIrradiance: vec3f;
2109
2110	for (var i: i32 = 0; i < steps; i++) {
2111		if (t > tExit) {
2112			break;
2113		}
2114
2115		pos = ro + rd * t;
2116
2117		if (horizDist * horizDist > ctx.maxDistance * ctx.maxDistance) {
2118			break;
2119		}
2120
2121		let density = SampleDensity(ctx, baseNoise, noiseSamp, detailNoise,
2122			currentWeatherMap, weatherSamp, nextWeatherMap, pos);
2123
2124		if (density > 0.0) {
2125			// get lightning â only the sun-ward transmittance and the sky
2126			// irradiance are read, so both lookups take the halved variants

2127			// (same values, see GetSkyTransmittance / GetSkyIrradianceLum).
2128			sky_transmittance = GetSkyTransmittance(
2129				atm, transmittanceTex, pos - ctx.earthCenter, ctx.sunDir);
2130			skyIrradiance = GetSkyIrradianceLum(atm, irradianceTex,
2131				pos - ctx.earthCenter, normalize(pos - ctx.earthCenter), ctx.sunDir);
2132			sunLight = sky_transmittance * atm.sun_spectral_radiance_to_luminance;
2133			// night
2134			skyIrradiance = max(vec3f(10.0), skyIrradiance);
2135			sunLight = max(vec3f(100.0), sunLight);
2136
2137			let vis = ComputeLightVisibility(ctx, baseNoise, noiseSamp, detailNoise,
2138				currentWeatherMap, weatherSamp, nextWeatherMap, pos, ctx.sunDir,
2139				phases);
2140
2141			let sampleSigmaS = ctx.sigmaS * density;
2142			let sampleSigmaT = max(ctx.sigmaT * density, CLOUD_EPS);
2143
2144			let powder = exp(-density * sampleSigmaT);
2145			let powderEffect = mix(1.0, powder, smoothstepGl(0.5, -0.5, mu));
2146			var inscatter = (sunLight * vis + skyIrradiance) * sampleSigmaS;
2147			inscatter *= powderEffect;
2148
2149			let transmittance = exp(-sampleSigmaT * dt);
2150
2151			// Energy conserving
2152			radiance += totalTransmittance * (inscatter - inscatter * transmittance) / sampleSigmaT;
2153			totalTransmittance *= transmittance;
2154
2155			if (length(totalTransmittance) <= 0.1) {
2156				totalTransmittance = vec3f(0.0);
2157				break;
2158			}
2159		}
2160
2161		t += dt;
2162	}
2163
2164	// Convert transmittance to alpha
2165	let alpha = 1.0 - dot(totalTransmittance, vec3f(0.2126, 0.7152, 0.0722));
2166
2167	let fog = exp(-horizDist / ctx.fogFactor); // ! hack probably should use bruneton transmittance
2168
2169	return vec4f(radiance, alpha) * fog;
2170}
2171
2172// High-altitude clouds (above the volumetric) 2D
2173fn HighAltitudeCloud(
2174	ctx: CloudsCtx, atm: Atm,
2175	transmittanceTex: texture_2d<f32>,
2176	scatteringTex: texture_3d<f32>, scatteringSamp: sampler,
2177	highCloudsMap: texture_2d<f32>, weatherSamp: sampler,
2178	ro: vec3f, rd: vec3f) -> vec4f {
2179	if (abs(rd.y) < CLOUD_EPS) {
2180		return vec4f(0.0);
2181	}
2182
2183	var result = vec4f(0.0);
2184
2185	let t = raySphereIntersect(ro, rd, ctx.earthCenter, ctx.bottomRadius + ctx.highCloudsHeight);
2186	if (t < 0.0) {
2187		return result;
2188	}
2189
2190	let pos = ro + rd * t;
2191	let normal = normalize(pos - ctx.earthCenter);
2192	let mu = dot(-rd, ctx.sunDir);
2193	let phase = mix(HenyeyGreenstein(-0.1, mu), HenyeyGreenstein(0.2, mu), 0.2);
2194
2195	// Sun-ward: transmittance only (the radiance return was discarded).
2196	let trans = GetSkyTransmittance(
2197		atm, transmittanceTex, pos - ctx.earthCenter, ctx.sunDir);
2198	let sunLight = trans * atm.sun_spectral_radiance_to_luminance;
2199	var zenithTrans: vec3f;
2200	let skyLight = GetSkyRadianceLum(atm, transmittanceTex, scatteringTex, scatteringSamp,
2201		pos - ctx.earthCenter, vec3f(0.0, 1.0, 0.0), 0.0, ctx.sunDir, &zenithTrans);
2202
2203	let scatter = sunLight * phase + skyLight;
2204
2205	// === Cirrus (R) ===
2206	let cirrusDensity = triplanarSample(highCloudsMap, weatherSamp,
2207		pos + ctx.time * ctx.windSpeed * cirrusSpeedFactor, normal,
2208		1.0 / ctx.highCloudsScale).r;
2209
2210	if (cirrusDensity > CLOUD_EPS) {
2211		let alpha = cirrusDensity * ctx.cirrusDensity;
2212		result = vec4f(result.rgb + (1.0 - result.a) * scatter * alpha,
2213			result.a + (1.0 - result.a) * alpha);
2214	}
2215
2216	// === Alto (G) ===
2217	let altoDensity = triplanarSample(highCloudsMap, weatherSamp,
2218		pos + ctx.time * ctx.windSpeed * altoSpeedFactor, normal,
2219		1.0 / ctx.highCloudsScale).g;
2220
2221	if (altoDensity > CLOUD_EPS) {
2222		let alpha = altoDensity * ctx.altoDensity;
2223		result = vec4f(result.rgb + (1.0 - result.a) * scatter * alpha,
2224			result.a + (1.0 - result.a) * alpha);
2225	}
2226
2227	let fog = exp(-length((ro + rd * t) - ro) / ctx.fogFactor);
2228	return result * fog;
2229}
2230`),n=ir(`fn cloudsPass(${td}) -> vec4f {${Fg}}`,[i]),l=Ps,o={...t,irradianceTex:re(e.irradiance),baseNoiseTex:nr(this._baseNoise),noiseSamp:Yr(this._baseNoise),detailNoiseTex:nr(this._detailNoise),weatherCurTex:re(this._weatherCur),weatherSamp:Yr(this._weatherCur),weatherNextTex:re(this._weatherNext),highCloudsTex:re(this._highClouds),cloudsParamsA:L(new at(l.maxDistance,l.sigmaS,l.sigmaA,l.cloudLayerThickness)),cloudsParamsB:L(new at(l.cloudLayerBottom,l.highCloudsHeight,l.highCloudsScale,l.weatherMapScale)),cloudsParamsC:this._uCloudsParamsC,cloudsParamsD:this._uCloudsParamsD},u=new ke;u.name="SplineSkyCloudsPass",u.lights=!1,u.fragmentNode=n(o),this._cloudsQuad=new kt(u),this._cloudsArgs=o,this._cloudsLib=i}_ensureEnvPass(){if(this._envQuad)return;this._ensurePasses();let e=ir(`fn skyEnvPass(${td},
2231	exposure: f32, gamma: f32, cloudsOn: f32) -> vec4f {${Lg}}`,[Jr(Uu),this._cloudsLib]),t=new ke;t.name="SplineSkyEnvironmentPass",t.lights=!1,t.fragmentNode=e({...this._cloudsArgs,exposure:this._uExposure,gamma:this._uGamma,cloudsOn:this._uEnvCloudsOn}),this._envQuad=new kt(t)}

2231_ensureBackgroundMesh(e,t){if(this.backgroundMesh)return this.backgroundMesh;let a=new bd;a.setAttribute("position",new Td(new Float32Array([-1,-1,0,3,-1,0,-1,3,0]),3));let r=new ke;r.name="SplineSkyBackground",r.lights=!1,r.depthWrite=!1,r.depthTest=!1,r.colorNode=this._buildComposeNode(e,t);let s=ir(`fn skyBackgroundVertex(position: vec3f) -> vec4f {
2232	return vec4f(position.xy, 0.5, 1.0);
2233}`);r.vertexNode=s({position:jl});let i=new wd(a,r);return i.name="SplineSkyBackground",i.userData.splineSkyBackground=!0,i.frustumCulled=!1,i.renderOrder=-1e9,i.matrixAutoUpdate=!1,i.raycast=()=>{},this.backgroundMesh=i,i}_syncState(e){let t=e.skyState,a=e!==this._lastPage;if(!a&&e.skyStateVersion===this._lastVersion)return;this._lastPage=e,this._lastVersion=e.skyStateVersion;let r=t.weather;if(r!==this._appliedWeather||t.seed!==this._appliedSeed||a){let s=Xg(r,t.seed);if(this._appliedWeather===null||a)this._weatherCur.image.data.set(s),this._weatherNext.image.data.set(s),this._weatherCur.needsUpdate=!0,this._weatherNext.needsUpdate=!0,this._blendFrom=1,this._blendStart=0,this._presetFrom=r,this._presetTo=r;else{let i=this._weatherCur.image.data,n=this._weatherNext.image.data;i.set(n),n.set(s),this._weatherCur.needsUpdate=!0,this._weatherNext.needsUpdate=!0,this._blendStart=performance.now(),this._blendFrom=0,this._presetFrom=this._presetTo,this._presetTo=r}this._appliedWeather=r,this._appliedSeed=t.seed}this._uExposure.value=5e-4*t.exposure,this._cloudsEnabled=t.clouds}_cornerRay(e,t,a,r){let s=Jg.set(e,t,-1,1).applyMatrix4(a.projectionMatrixInverse);return this._eyeRayToWorld(s.x,s.y,a,r)}_eyeRayToWorld(e,t,a,r){let s=e_.set(e,t,-1,0).applyMatrix4(a.matrixWorld);return r.set(s.x,s.y,s.z).normalize()}_updateCornerRays(e,t){let a=e;if(e.projectionMatrix.elements[11]!==-1){let r=typeof a.fov=="number"&&a.fov>0?a.fov:45,s=Math.tan(r*Math.PI/360),i=s*t;return this._eyeRayToWorld(-i,-s,e,this._uRay00.value),this._eyeRayToWorld(i,-s,e,this._uRay10.value),this._eyeRayToWorld(-i,s,e,this._uRay01.value),void this._eyeRayToWorld(i,s,e,this._uRay11.value)}this._cornerRay(-1,-1,e,this._uRay00.value),this._cornerRay(1,-1,e,this._uRay10.value),this._cornerRay(-1,1,e,this._uRay01.value),this._cornerRay(1,1,e,this._uRay11.value)}update(e,t){if(this._auxiliary&&this.endFrame(),e.skyState?.mode==="hdri")return void this._updateHdri(e,t,e.skyState);this._hdri?.active===!0&&this._hdri.detach(),this._ensurePasses(),this._syncState(e);let a=e.skyState,r=performance.now(),s=this._lastFrameTime===null?0:(r-this._lastFrameTime)/1e3;this._lastFrameTime=r;let i=a.animateWind&&this._renderer.skyAnimationAllowed===!0&&this.fixedTimeSeconds===null;i&&(this._windOffsetKm+=a.windSpeed/1e3*300*Math.min(s,.25),this._windOffsetKm%=9600);let n=this.fixedTimeSeconds??3600*a.timeOfDay,l=ju(n);this._uSunDir.value.set(l[0],l[1],l[2]);let o=1;this._blendStart>0&&(o=Math.min(1,this._blendFrom+(r-this._blendStart)/1e3/2),o>=1&&(this._blendStart=0));let u=this.minStepKmOverride??Lh??.05;this.fixedTimeSeconds!==null?this._uCloudsParamsD.value.set(a.windSpeed/1e3,o,this.fixedTimeSeconds,u):this._uCloudsParamsD.value.set(1,o,this._windOffsetKm,u);let d=this.highCloudDensityOverride,m=ed[this._presetFrom],h=ed[this._presetTo];this._uCloudsParamsC.value.set(Ps.baseNoiseScale,Ps.detailNoiseScale,d!==null?d[0]:m[0]+(h[0]-m[0])*o,d!==null?d[1]:m[1]+(h[1]-m[1])*o),this._animating=this._cloudsEnabled&&(this._blendStart>0||i&&a.windSpeed!==0),this._lightingOn=a.lighting===!0,a.lighting!==!0||this._auxiliary?this._lightingPage!==null&&this._teardownLighting():(this._ensureLightingLuts(),this._updateLighting(e,o,a.exposure,a.lightingIntensity??1));let f=this._renderer.getDrawingBufferSize(Ju);this._updateCornerRays(t,f.y>0?f.x/f.y:1);let p=Math.max(1,Math.round(this.fixedSkySize?.x??f.x)),_=Math.max(1,Math.round(this.fixedSkySize?.y??f.y)),y=Math.max(1,Math.round(this.fixedCloudsSize?.x??f.x/4)),g=Math.max(1,Math.round(this.fixedCloudsSize?.y??f.y/4)),x=(O,j,Z,$)=>{if(O&&O.width===j&&O.height===Z)return O;this._renderer.retireRenderTarget!==void 0?this._renderer.retireRenderTarget(O):O?.dispose();let me=new Ee(j,Z,{type:At,depthBuffer:!1});return me.texture.name=$,me},v=this._skyTarget,V=this._cloudsTarget;this._skyTarget=x(this._skyTarget,p,_,"sky-pass"),this._cloudsTarget=x(this._cloudsTarget,y,g,"sky-clouds-pass"),V!==this._cloudsTarget&&(this._cloudsTargetCleared=!1);let T=this._renderer,z=T.getRenderTarget(),b=this._uCloudsParamsD.value,M=this._uCloudsParamsC.value,S=this._uRay00.value,C=this._uRay10.value,R=this._uRay01.value,k=this._uRay11.value,E=`${n}|${S.x},${S.y},${S.z}|${C.x},${C.y},${C.z}|${R.x},${R.y},${R.z}|${k.x},${k.y},${k.z}`,I=E===this._lastSkyPassKey&&v===this._skyTarget;this._lastSkyPassKey=E,I||(T.setRenderTarget(this._skyTarget),this._skyQuad.render(this._renderer));let D=this._cloudsEnabled?`${E}|${b.x},${b.y},${b.z},${b.w}|${M.z},${M.w}|${this._appliedWeather}|${this._appliedSeed}|${this._highCloudsReady}`:"off",H=D===this._lastCloudsPassKey&&V===this._cloudsTarget;if(this._lastCloudsPassKey=D,T.setRenderTarget(this._cloudsTarget),this._cloudsEnabled)H||this._cloudsQuad.render(this._renderer),this._cloudsTargetCleared=!1;else if(!this._cloudsTargetCleared){let O=T.getClearColor(Yg),j=T.getClearAlpha();T.setClearColor(0,0),T.clear(!0,!1,!1),T.setClearColor(O,j),this._cloudsTargetCleared=!0}if(this._renderer.skyEnvironmentNeeded!==!1){if(this._ensureEnvPass(),this._envTarget===null){this._envTarget=new Ee(256,128,{type:At,depthBuffer:!1});let $=this._envTarget.texture;$.name="sky-environment",$.generateMipmaps=!0,$.minFilter=Oa,$.magFilter=Ve,$.wrapS=wa}this._uEnvCloudsOn.value=this._cloudsEnabled?1:0;let O=i?.25*Math.round(b.z/.25):b.z,j=this._blendStart>0?Math.floor(16*o)/16:o,Z=`${n}|${this._uExposure.value}|${this._uGamma.value}|${this._cloudsEnabled}|${b.x},${j},${O},${b.w}|${this._presetFrom}>${this._presetTo}|${d??""}|${this._appliedWeather}|${this._appliedSeed}|${this._highCloudsReady}`;Z!==this._lastEnvKey?(this._lastEnvKey=Z,T.setRenderTarget(this._envTarget),this._envQuad.render(this._renderer),this._requestEnvPmrem(r)):this._pmremPending&&this._requestEnvPmrem(r)}T.setRenderTarget(z);

2233let K=this._ensureBackgroundMesh(this._skyTarget.texture,this._cloudsTarget.texture);(v!==this._skyTarget||V!==this._cloudsTarget)&&this._rebindComposeTextures(),K.parent!==e&&(K.parent?.remove(K),e.add(K)),this._auxiliary&&this._auxBorrowPage(e,K)}_auxBorrowPage(e,t){this._auxMesh=t!==null&&t.parent===e?t:null;for(let a of e.children)a!==t&&a.visible&&a.userData.splineSkyBackground===!0&&(a.visible=!1,this._auxHidden.push(a))}endFrame(){if(this._auxiliary){this._auxMesh?.parent?.remove(this._auxMesh),this._auxMesh=null;for(let e of this._auxHidden)e.visible=!0;this._auxHidden.length=0}}_updateHdri(e,t,a){this.backgroundMesh?.parent?.remove(this.backgroundMesh),this._animating=!1;let r=this._renderer.getDrawingBufferSize(Ju);this._updateCornerRays(t,r.y>0?r.x/r.y:1),this._hdri===null&&(this._hdri=new Zg(this._renderer,{ray00:this._uRay00,ray10:this._uRay10,ray01:this._uRay01,ray11:this._uRay11}));let s=e.skyHdriHolder,i=s!==null&&s.loaded?s.getTexture(1001):null;this._iblHdriTexture=i,this._iblRotationY=a.hdri?.rotation??0,this._lightingOn=a.lighting===!0&&i!==null;let n=t.fov,l=typeof n=="number"&&n>0?n:45,o=r.y/(this._renderer.getPixelRatio?.()??1),u=l*Math.PI/180/Math.max(1,o),d=(a.hdri?.blur??0)*u;if(this._hdri.update(e,i,a.hdri?.rotation,d,a.hdri?.showBackground!==!1),this._auxiliary)return void this._auxBorrowPage(e,this._hdri.backgroundMesh);let m=a.lighting===!0&&i!==null?this._hdri.lightingInfo(i):null;m!==null?this._updateHdriLighting(e,m,a.hdri?.rotation??0,a.lightingIntensity??1):this._lightingPage!==null&&this._teardownLighting()}_updateHdriLighting(e,t,a,r){this._lightingPage!==null&&this._lightingPage!==e&&this._teardownLighting(),this._lightingPage=e;let s=y=>{let g=Math.max(y[0],y[1],y[2],1e-6);return[y[0]/g,y[1]/g,y[2]/g]},i=this._sunLight;i===null&&(i=new To(16777215,0),i.name="SplineSkySun",i.layers.enable(3),i.raycast=()=>{},this._sunLight=i),i.parent!==e&&e.add(i),i.userData.splineDiffuseOnly=!0;let n=Math.cos(a),l=Math.sin(a),o=t.sunDir;i.position.set(n*o[0]-l*o[2],o[1],l*o[0]+n*o[2]).multiplyScalar(1e5);let u=s(t.sunColor);i.color.setRGB(u[0],u[1],u[2]);let d=Math.min(Math.max((t.sunPeak-1)/2,0),1);i.intensity=1*Math.PI*Math.min(t.sunLum,1)*d*r;let m=e.ambientLight;m!=null&&(m.parent!==null&&m.removeFromParent(),this._userAmbientSuppressed=!0);let h=this._skyHemi;h===null&&(h=new gl(16777215,8947848,0),h.name="SplineSkyAmbient",h.layers.enable(3),h.raycast=()=>{},this._skyHemi=h),h.parent!==e&&e.add(h);let f=s(t.skyColor);h.color.setRGB(f[0],f[1],f[2]);let p=s(t.groundColor),_=t.skyLum>1e-6?Math.min(t.groundLum/t.skyLum,1):Ei;h.groundColor.setRGB(p[0]*_,p[1]*_,p[2]*_),h.intensity=.75*Math.PI*(t.skyLum/.5)*r}_ensureLightingLuts(){if(this._lightingLutsRequested||this._luts===null)return;this._lightingLutsRequested=!0;let e=this._luts;Promise.all([$r(this._renderer,e.transmittance,256,64,1,!1),$r(this._renderer,e.irradiance,64,16,1,!1)]).then(([t,a])=>{this._lightingLuts={transmittance:t,irradiance:a};let r=this._atmosphereUniforms,s=r.bottomRadius+.1,i=ju(43200)[1],n=Lu(r,this._lightingLuts,s,i);this._noonSunRgb=[n[0],n[1],n[2]],this._noonSunLum=ks(n),this._noonSkyLum=ks(Iu(r,this._lightingLuts,s,i))},()=>{this._lightingLutsRequested=!1})}_updateLighting(e,t,a,r){let s=this._lightingLuts,i=this._noonSunRgb;if(s===null||i===null||this._noonSunLum<=0||this._noonSkyLum<=0)return;this._lightingPage!==null&&this._lightingPage!==e&&this._teardownLighting(),this._lightingPage=e;let n=this._atmosphereUniforms,l=n.bottomRadius+.1,o=this._uSunDir.value,u=o.y,d=b=>b[this._presetFrom]+(b[this._presetTo]-b[this._presetFrom])*t,m=(b,M)=>{let S=[b[0]/Math.max(i[0],1e-12),b[1]/Math.max(i[1],1e-12),b[2]/Math.max(i[2],1e-12)],C=ks(S),R=[C+(S[0]-C)*M,C+(S[1]-C)*M,C+(S[2]-C)*M],k=Math.max(R[0],R[1],R[2],1e-12);return[R[0]/k,R[1]/k,R[2]/k]},h=d(t_),f=Lu(n,s,l,u),p=ks(f),_=this._sunLight;if(_===null&&(_=new To(16777215,0),_.name="SplineSkySun",_.layers.enable(3),_.raycast=()=>{},this._sunLight=_),_.parent!==e&&e.add(_),_.userData.splineDiffuseOnly=!1,_.position.set(o.x,o.y,o.z).multiplyScalar(1e5),p>0){let b=m(f,h);_.color.setRGB(b[0],b[1],b[2])}_.intensity=1*Math.PI*(p/this._noonSunLum)*d(a_)*a*r;let y=e.ambientLight;y!=null&&(y.parent!==null&&y.removeFromParent(),this._userAmbientSuppressed=!0);let g=this._skyHemi;g===null&&(g=new gl(16777215,8947848,0),g.name="SplineSkyAmbient",g.layers.enable(3),g.raycast=()=>{},this._skyHemi=g),g.parent!==e&&e.add(g);let x=Iu(n,s,l,u),v=ks(x),[V,T,z]=m(x,h);g.color.setRGB(V,T,z),g.groundColor.setRGB(V*Ei,T*Ei,z*Ei),g.intensity=.75*Math.PI*(v/this._noonSkyLum)*d(r_)*a*r}_teardownLighting(){let e=this._lightingPage;if(this._lightingPage=null,this._sunLight?.parent?.remove(this._sunLight),this._skyHemi?.parent?.remove(this._skyHemi),this._userAmbientSuppressed){this._userAmbientSuppressed=!1;let t=e?.ambientLight,a=e?.data?.ambient?.enabled;t&&a!==!1&&e.add(t)}}_buildComposeNode(e,t){return ir(`fn skyCompose(
2234	uv: vec2f,
2235	skyTex: texture_2d<f32>, skySamp: sampler,
2236	cloudsTex: texture_2d<f32>,

2237	exposure: f32, gamma: f32) -> vec4f {
2238	let WHITE_POINT: f32 = 11.07;
2239	// three's screenUV is GL-style bottom-origin while the pass targets hold
2240	// top-row-first content â flip v to line the compose up with the view.
2241	let uvFlipped = vec2f(uv.x, 1.0 - uv.y);
2242	let sky = textureSampleLevel(skyTex, skySamp, uvFlipped, 0.0).rgb;
2243	let clouds = textureSampleLevel(cloudsTex, skySamp, uvFlipped, 0.0);
2244
2245	var color = vec4f(sky * (1.0 - clouds.a) + clouds.rgb, 1.0);
2246	color = vec4f(Hable(color.rgb, exposure, WHITE_POINT), color.a);
2247	color = vec4f(pow(color.rgb, vec3f(1.0 / gamma)), color.a);
2248
2249	return color;
2250}`,[Jr(Uu)])({uv:Fa,skyTex:re(e),skySamp:Yr(e),cloudsTex:re(t),exposure:this._uExposure,gamma:this._uGamma})}_rebindComposeTextures(){let e=this.backgroundMesh?.material;!e||!this._skyTarget||!this._cloudsTarget||(e.colorNode=this._buildComposeNode(this._skyTarget.texture,this._cloudsTarget.texture),e.needsUpdate=!0)}detach(){this.backgroundMesh?.parent?.remove(this.backgroundMesh),this._hdri?.detach(),this._teardownLighting(),this._lightingOn=!1}dispose(){this.detach(),this._hdri?.dispose(),this._hdri=null,this._sunLight?.dispose(),this._sunLight=null,this._skyHemi?.dispose(),this._skyHemi=null,this._luts?.dispose(),this._luts=null,this._baseNoise?.dispose(),this._detailNoise?.dispose(),this._weatherCur.dispose(),this._weatherNext.dispose(),this._highClouds.dispose(),this._skyTarget?.dispose(),this._cloudsTarget?.dispose(),this._envTarget?.dispose(),this._envTarget=null,this._lastEnvKey=null,this._envQuad?.material?.dispose(),this.backgroundMesh?.material?.dispose(),this.backgroundMesh?.geometry.dispose(),this.backgroundMesh=null,this._skyQuad=null,this._cloudsQuad=null,this._envQuad=null,this._cloudsArgs=null,this._cloudsLib=null,this._lastSkyPassKey=null,this._lastCloudsPassKey=null}};qd=e=>new s_(e);var i_=e=>e,al=mt("vec4","vSplatColor"),rl=mt("vec2","vSplatPosition");function sl(e,t,a){return e.element(t).element(a)}var n_=class extends ke{constructor(e){super(),this.uniformsNeedUpdate=!1,this._covariancesTex=re(new Lt),this._centersColorsTex=re(new Lt),this._meshMatrixWorldsTex=re(new Lt),this._focal=L(new ve),this._viewport=L(new ve),this._basisViewport=L(new ve),this._covariancesTextureSize=L(new ve(1024,1024)),this._centersColorsTextureSize=L(new ve(1024,1024)),this._orthoZoom=L(-1),this._velocityMRT=Hs({velocity:P(0)}),this.name="WebGPUSplatMaterial",this.transparent=!0,this.depthTest=!0,this.depthWrite=!1,this.side=is,this.lights=!1;let t=s=>({get value(){return s.value},set value(i){i&&i.isTexture&&(s.value=i)}}),a=s=>({get value(){return s.value},set value(i){s.value=i}}),r=s=>({value:s});this.uniforms={covariancesTexture:t(this._covariancesTex),centersColorsTexture:t(this._centersColorsTex),meshMatrixWorldsTexture:t(this._meshMatrixWorldsTex),focal:a(this._focal),viewport:a(this._viewport),basisViewport:a(this._basisViewport),covariancesTextureSize:a(this._covariancesTextureSize),centersColorsTextureSize:a(this._centersColorsTextureSize),orthoZoom:a(this._orthoZoom),meshIndexIntervals:r(e),debugColor:r(new gt)},this._buildGraph(e)}_buildGraph(e){let t=this._covariancesTex,a=this._centersColorsTex,r=this._meshMatrixWorldsTex,s=this._focal,i=this._basisViewport,n=this._covariancesTextureSize,l=this._centersColorsTextureSize,o=this._orthoZoom,u=U(()=>{let m=Er("splatIndex","uint"),h=(De,qt,bt)=>{let Fe=m.mul(Le(De)).add(Le(qt)).toFloat().div(bt.x);return A(Ae(Fe),J(Fe).div(bt.y))},f=a.sample(h(1,0,l)).toVar(),p=vc(bc(f.y,f.z,f.w),"vec3").toVar(),_=f.x;al.assign(P(_.bitAnd(Le(255)).toFloat(),_.shiftRight(Le(8)).bitAnd(Le(255)).toFloat(),_.shiftRight(Le(16)).bitAnd(Le(255)).toFloat(),_.shiftRight(Le(24)).bitAnd(Le(255)).toFloat()).mul(1/255));let y=Er("position","vec3").xy.mul(2).toVar();rl.assign(y);let g=c(0);for(let De=1;De<e.length-1;De++)g=i_(g.add(m.greaterThanEqual(Le(e[De])).select(c(1),c(0))));let x=g.mul(4).toVar(),v=De=>r.sample(A(x.add(De).div(1024),0)),V=gd(v(0),v(1),v(2),v(3)),T=La.mul(V).toVar(),z=T.mul(P(p,1)).toVar(),b=Js.mul(z).toVar(),M=t.sample(h(3,0,n)).xy.toVar(),S=t.sample(h(3,1,n)).xy.toVar(),C=t.sample(h(3,2,n)).xy.toVar(),R=M.x,k=M.y,E=S.x,I=S.y,D=C.x,H=C.y,K=Pr(R,k,E,k,I,D,E,D,H),O=c(1).div(z.z.mul(z.z)).toVar(),j=T,Z=Pr(j.element

2250(0).xyz,j.element(1).xyz,j.element(2).xyz).transpose(),$=Pr(s.x.div(z.z),0,s.x.mul(z.x).negate().mul(O),0,s.y.div(z.z),s.y.mul(z.y).negate().mul(O),0,0,0),me=De=>{let qt=De.transpose().mul(K).mul(De);return P(sl(qt,0,0).add(.3),sl(qt,0,1),sl(qt,1,1).add(.3),0).xyz},ue=o.greaterThan(0),ce=ue.select(me(Z),me(Z.mul($))).toVar(),Me=b.xyz.div(b.w).toVar(),fe=ce.x,Te=ce.z,Be=ce.y,$e=fe.mul(Te).sub(Be.mul(Be)),Ge=fe.add(Te),Ye=Ge.mul(.5),Ue=Ea(Q(Ge.mul(Ge).div(4).sub($e),0)).toVar(),wt=Ye.add(Ue).toVar(),Yt=Q(Ye.sub(Ue),0).toVar(),rt=ae(A(Be,wt.sub(fe))).toVar(),yt=A(rt.y,rt.x.negate()).toVar(),It=rt.mul(xe(Ea(wt.mul(2)),1024)).toVar(),Re=yt.mul(xe(Ea(Yt.mul(2)),1024)).toVar(),st=It.mul(y.x).add(Re.mul(y.y)).mul(i).toVar();return st.assign(ue.select(st.mul(o),st)),P(Me.xy.add(st),Me.z,1)}),d=U(()=>{let m=rl.dot(rl).negate().toVar();m.lessThan(-4).discard();let h=Ql(m).mul(al.w);return P(al.xyz,h)});this.vertexNode=u(),this.colorNode=d(),this.needsUpdate=!0}setup(e){let t=e.renderer.getMRT?.();this.mrtNode=t?this._velocityMRT:null,super.setup(e)}nodeMaterialDispose(){this.dispose()}};function V_(){let e=L(1),t=L(.6),a=L(1),r=L(1),s=L(new gt(16603997)),i=L(new gt(2857471)),n=L(new gt(3728051)),l=L(9),o=L(new ve),u=new ke;u.name="EditorGridNodeMaterial",u.transparent=!0,u.lights=!1,u.fog=!1;let d=Se(l.equal(10),n,i),m=Se(l.equal(8),n,s),h=Se(Ws.x.equal(o.x),d,Se(Ws.z.equal(o.y),m,w(.5)));u.colorNode=h;let f=cr.z.negate(),p=Ze(a.mul(500),a.mul(4500),f).mul(r);u.opacityNode=X(e.mul(t),c(0),p);let _={get value(){return r.value===0?1/0:a.value},set value(y){Number.isFinite(y)?(a.value=y,r.value=1):r.value=0}};return u.uniforms={angleFadeFactor:e,opacityFactor:t,gridScale:_,red:s,blue:i,green:n,mode:l,offset:o},u}function M_(){return typeof navigator<"u"&&navigator.gpu!==void 0}sp({createSplatMaterial:e=>new n_(e)}),ip({createRootMaterial:(e,t)=>new es(e,t),createSharedMaterial:(e,t,a)=>new dg(e,t,a)}),ap({tsl:Hl,NodeMaterial:ke,MeshBasicNodeMaterial:_c,MeshStandardNodeMaterial:gc,MeshPhysicalNodeMaterial:fc,MeshPhongNodeMaterial:pc,MeshLambertNodeMaterial:cc,MeshToonNodeMaterial:mc,MeshMatcapNodeMaterial:hc,MeshNormalNodeMaterial:dc,SpriteNodeMaterial:uc,PointsNodeMaterial:ol,LineBasicNodeMaterial:oc,LineDashedNodeMaterial:lc,Color:gt,Vector2:ve,Vector3:ne,Vector4:at,Matrix3:en,Matrix4:Ra,Texture:Lt,CanvasTexture:mp,DataTexture:fr,VideoTexture:hp,FrontSide:pl,BackSide:cl,DoubleSide:is,NormalBlending:dp,AdditiveBlending:up,MultiplyBlending:op,SubtractiveBlending:lp,RepeatWrapping:wa,ClampToEdgeWrapping:ns,MirroredRepeatWrapping:np,NearestFilter:Oe,LinearFilter:Ve,LinearMipmapLinearFilter:Oa,SRGBColorSpace:Yl,LinearSRGBColorSpace:ml}),cp(()=>{let e=new xc;return e.depthWrite=!1,e.opacity=.5,e});var l_=["maxUniformBuffersPerShaderStage","maxSampledTexturesPerShaderStage","maxSamplersPerShaderStage","maxStorageBuffersPerShaderStage","maxStorageBufferBindingSize","maxBufferSize","maxVertexBuffers","maxVertexAttributes","maxUniformBufferBindingSize","maxColorAttachmentBytesPerSample"];async function C_(e={}){let t=!1;try{t=new URLSearchParams(window.location.search).get("dbglimits")==="default"}catch{}let a=t?{}:e.requiredLimits??await(async function(s){if(!(s.forceWebGL||typeof navigator>"u"||navigator.gpu===void 0))try{let i=await navigator.gpu.requestAdapter({powerPreference:s.powerPreference,featureLevel:"compatibility"});if(!i)return;let n={},l=i.limits;for(let o of l_){let u=l[o];typeof u=="number"&&Number.isFinite(u)&&(n[o]=u)}return n}catch{return}})(e),r=new ah({...e,requiredLimits:a});await r.init();try{let s=new URLSearchParams(window.location.search);if(s.get("taa")==="off"&&(r.temporalAAEnabled=!1),s.get("nojit")==="1"){let i=r.taaHistory;i.beginJitter=()=>{},i.endJitter=()=>{}}s.get("dbghdt")==="1"&&(r.hdTransmission=!0)}catch{}return r}export{b_ as SPE_BLENDING_MULTIPLY,v_ as SPE_BLENDING_NORMAL,w_ as SPE_BLENDING_OVERLAY,T_ as SPE_BLENDING_SCREEN,ef as TSLLayerParams,es as TSLRootMaterial,dg as TSLSharedMaterial,Ed as WebGPUPostPipeline,ah as WebGPUSplineRenderer,V_ as createEditorGridNodeMaterial,C_ as createWebGPUSplineRenderer,rf as getTSLLayerBuilder,S_ as hasTSLLayerBuilder,M_ as isWebGPUSupported,lu as ownUniformValue,Qt as registerTSLLayer,sh as setRenderUniformValue,ei as simpleCalpha,qn as speBlend,to as speObjectNormal,ga as speObjectPosition,rh as splitUniformValueSlots,Qa as standardCalpha,af as unsupportedTSLLayerBuilder,W as webgpuGlobals};

Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.