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p=0,m=0,g=Math.trunc(s.value+(c+7)/8);s.value<g;)for(i(p,m,r,s),p=a.c,m=a.lc;m>=14;){var v=t[p>>m-14&16383];if(v.len)m-=v.len,l(v.lit,u,p,m,r,n,s,f,h,d),p=o.c,m=o.lc;else{if(!v.p)throw"hufDecode issues";for(w=0;w<v.lit;w++){for(var w,y=63&e[v.p[w]];m<y&&s.value<g;)i(p,m,r,s),p=a.c,m=a.lc;if(m>=y&&e[v.p[w]]>>6==(p>>m-y&(1<<y)-1)){m-=y,l(v.p[w],u,p,m,r,n,s,f,h,d),p=o.c,m=o.lc;break}}if(w==v.lit)throw"hufDecode issues"}}var b=8-c&7;for(p>>=b,m-=b;m>0;){var v=t[p<<14-m&16383];if(v.len)m-=v.len,l(v.lit,u,p,m,r,n,s,f,h,d),p=o.c,m=o.lc;else throw"hufDecode issues"}}(v,w,e,s,c,g,m,f,d,{value:0})}function p(e){for(var t=1;t<e.length;t++){var r=e[t-1]+e[t]-128;e[t]=r}}function m(e,t){for(var r=0,n=Math.floor((e.length+1)/2),a=0,i=e.length-1;!(a>i)&&(t[a++]=e[r++],!(a>i));){;t[a++]=e[n++]}}function g(e){for(var t=e.byteLength,r=[],n=0,a=new DataView(e);t>0;){var i=a.getInt8(n++);if(i<0){var o=-i;t-=o+1;for(var s=0;s<o;s++)r.push(a.getUint8(n++))}else{var o=i;t-=2;for(var l=a.getUint8(n++),s=0;s<o+1;s++)r.push(l)}}return r}function v(e){return new DataView(e.array.buffer,e.offset.value,e.size)}function w(e){var t=new Uint8Array(g(e.viewer.buffer.slice(e.offset.value,e.offset.value+e.size))),r=new
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s=o<16384,l=r>a?a:r,c=1;c<=l;)c<<=1;for(c>>=1,h=c,c>>=1;c>=1;){for(var h,p,m,g,v,w=0,y=0+i*(a-h),b=i*c,E=i*h,x=n*c,M=n*h;w<=y;w+=E){for(var _=w,P=w+n*(r-h);_<=P;_+=M){var S=_+x,O=_+b,C=O+x;s?(d(e[_+t],e[O+t]),p=u.a,g=u.b,d(e[S+t],e[C+t]),m=u.a,v=u.b,d(p,m),e[_+t]=u.a,e[S+t]=u.b,d(g,v)):(f(e[_+t],e[O+t]),p=u.a,g=u.b,f(e[S+t],e[C+t]),m=u.a,v=u.b,f(p,m),e[_+t]=u.a,e[S+t]=u.b,f(g,v)),e[O+t]=u.a,e[C+t]=u.b}if(r&c){var O=_+b;s?d(e[_+t],e[O+t]):f(e[_+t],e[O+t]),p=u.a,e[O+t]=u.b,e[_+t]=p}}if(a&c)for(var _=w,P=w+n*(r-h);_<=P;_+=M){var S=_+x;s?d(e[_+t],e[S+t]):f(e[_+t],e[S+t]),p=u.a,e[S+t]=u.b,e[_+t]=p}h=c,c>>=1}}(n,v.start+w,v.nx,v.size,v.ny,v.nx*v.size,m);for(var y=i,b=0;b<y;++b)n[b]=p[n[b]];for(var E=0,x=new Uint8Array(n.buffer.byteLength),M=0;M<e.lines;M++)for(var _=0;_<e.channels;_++){var v=o[_],S=v.nx*v.size,C=new Uint8Array(n.buffer,2*v.end,2*S);x.set(C,E),E+=2*S,v.end+=S}return new DataView(x.buffer)}function E(e){var t=z(e.array.slice(e.offset.value,e.offset.value+e.size));let r=e.lines*e.channels*e.width,n=1==e.type?new Uint16Array(r):new Uint32Array(r),a=0,i=0,o=[,,,,];for(let r=0;r<e.lines;r++)for(let r=0;r<e.channels;r++){let r=0;switch(e.type){case 1:o[0]=a,o[1]=o[0]+e.width,a=o[1]+e.width;for(let a=0;a<e.width;++a)r+=t[o[0]++]<<8|t[o[1]++],n[i]=r,i++;break;case 2:o[0]=a,o[1]=o[0]+e.width,o[2]=o[1]+e.width,a=o[2]+e.width;for(let a=0;a<e.width;++a)r+=t[o[0]++]<<24|t[o[1]++]<<16|t[o[2]++]<<8,n[i]=r,i++}}return new DataView(n.buffer)}function x(e){var t=e.viewer,r={value:e.offset.value},n=new Uint8Array(e.width*e.lines*(e.channels*e.type*2)),a={version:C(t,r),unknownUncompressedSize:C(t,r),unknownCompressedSize:C(t,r),acCompressedSize:C(t,r),dcCompressedSize:C(t,r),rleCompressedSize:C(t,r),rleUncompressedSize:C(t,r),rleRawSize:C(t,r),totalAcUncompressedCount:C(t,r),totalDcUncompressedCount:C(t,r),acCompression:C(t,r)};if(a.version<2)throw"EXRLoader.parse: "+L.compression+" version "+a.version+" is unsupported";for(var i=[],o=I(t,r)-2;o>0;){var l=M(t.buffer,r),c=O(t,r),u=c>>2&3,d=new Int8Array([(c>>4)-1])[0],f=O(t,r);i.push({name:l,index:d,type:f,compression:u}),o-=l.length+3}for(var p=L.channels,m=Array(e.channels),v=0;v<e.channels;++v){var w=m[v]={},b=p[v];w.name=b.name,w.compression=0,w.decoded=!1,w.type=b.pixelType,w.pLinear=b.pLinear,w.width=e.width,w.height=e.lines}for(var E={idx:[,,,]},x=0;x<e.channels;++x)for(var w=m[x],v=0;v<i.length;++v){var _=i[v];w.name==_.name&&(w.compression=_.compression,_.index>=0&&(E.idx[_.index]=x),w.offset=x)}if(a.acCompressedSize>0)switch(a.acCompression){case 0:var P=new Uint16Array(a.totalAcUncompressedCount);h(e.array,t,r,a.acCompressedSize,P,a.totalAcUncompressedCount);break;case 1:var S=e.array.slice(r.value,r.value+a.totalAcUncompressedCount),T=z(S),P=new Uint16Array(T.buffer);r.value+=a.totalAcUncompressedCount}if(a.dcCompressedSize>0){var A=new Uint16Array(y({array:e.array,offset:r,size:a.dcCompressedSize}).buffer);r.value+=a.dcCompressedSize}if(a.rleRawSize>0){var S=e.array.slice(r.value,r.value+a.rleCompressedSize),T=z(S),R=g(T.buffer);r.value+=a.rleCompressedSize}for(var U=0,j=Array(m.length),v=0;v<j.length;++v)j[v]=[];for(var F=0;F<e.lines;++F)for(var D=0;D<m.length;++D)j[D].push(U),U+=m[D].width*e.type*2;!function(e,t,r,n,a,i){var o=new DataView(i.buffer),l=r[e.idx[0]].width,c=r[e.idx[0]].height,u=Math.floor(l/8),d=Math.ceil(l/8),f=Math.ceil(c/8),h=l-(d-1)*8,p=c-(f-1)*8,m={value:0},g=[,,,],v=[,,,],w=[,,,],y=[,,,],b=[,,,];for(let r=0;r<3;++r)b[r]=t[e.idx[r]],g[r]=r<1?0:g[r-1]+d*f,v[r]=new Float32Array(64),w[r]=new Uint16Array(64),y[r]=new Uint16Array(64*d);for(let t=0;t<f;++t){var E,x,M=8;t==f-1&&(M=p);var _=8;for(let e=0;e<d;++e){e==d-1&&(_=h);for(let e=0;e<3;++e){w[e].fill(0),w[e][0]=a[g[e]++],function(e,t,r){for(var n,a=1;a<64;)65280==(n=t[e.value])?a=64:n>>8==255?a+=255&n:(r[a]=n,a++),e.value++}(m,n,w[e]),E=w[e],(x=v[e])[0]=k(E[0]),x[1]=k(E[1]),x[2]=k(E[5]),x[3]=k(E[6]),x[4]=k(E[14]),x[5]=k(E[15]),x[6]=k(E[27]),x[7]=k(E[28]),x[8]=k(E[2]),x[9]=k(E[4]),x[10]=k(E[7]),x[11]=k(E[13]),x[12]=k(E[16]),x[13]=k(E[26]),x[14]=k(E[29]),x[15]=k(E[42]),x[16]=k(E[3]),x[17]=k(E[8]),x[18]=k(E[12]),x[19]=k(E[17]),x[20]=k(E[25]),x[21]=k(E[30]),x[22]=k(E[41]),x[23]=k(E[43]),x[24]=k(E[9]),x[25]=k(E[11]),x[26]=k(E[18]),x[27]=k(E[24]),x[28]=k(E[31]),x[29]=k(E[40]),x[30]=k(E[44]),x[31]=k(E[53]),x[32]=k(E[10]),x[33]=k(E[19]),x[34]=k(E[23]),x[35]=k(E[32]),x[36]=k(E[39]),x[37]=k(E[45]),x[38]=k(E[52]),x[39]=k(E[54]),x[40]=k(E[20]),x[41]=k(E[22]),x[42]=k(E[33]),x[43]=k(E[38]),x[44]=k(E[46]),x[45]=k(E[51]),x[46]=k(E[55]),x[47]=k(E[60]),x[48]=k(E[21]),x[49]=k(E[34]),x[50]=k(E[37]),x[51]=k(E[47]),x[52]=k(E[50]),x[53]=k(E[56]),x[54]=k(E[59]),x[55]=k(E[61]),x[56]=k(E[35]),x[57]=k(E[36]),x[58]=k(E[48]),x[59]=k(E[49]),x[60]=k(E[57]),x[61]=k(E[58]),x[62]=k(E[62]),x[63]=k(E[63]),function(e){let 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d=0;d<8;++d)i[0]=r*e[16+d],i[1]=a*e[16+d],i[2]=r*e[48+d],i[3]=a*e[48+d],o[0]=t*e[8+d]+n*e[24+d]+.2777854612564676*e[40+d]+.09754573032714427*e[56+d],o[1]=n*e[8+d]-.09754573032714427*e[24+d]-t*e[40+d]-.2777854612564676*e[56+d],o[2]=.2777854612564676*e[8+d]-t*e[24+d]+.09754573032714427*e[40+d]+n*e[56+d],o[3]=.09754573032714427*e[8+d]-.2777854612564676*e[24+d]+n*e[40+d]-t*e[56+d],s[0]=.35355362513961314*(e[d]+e[32+d]),s[3]=.35355362513961314*(e[d]-e[32+d]),s[1]=i[0]+i[3],s[2]=i[1]-i[2],l[0]=s[0]+s[1],l[1]=s[3]+s[2],l[2]=s[3]-s[2],l[3]=s[0]-s[1],e[0+d]=l[0]+o[0],e[8+d]=l[1]+o[1],e[16+d]=l[2]+o[2],e[24+d]=l[3]+o[3],e[32+d]=l[3]-o[3],e[40+d]=l[2]-o[2],e[48+d]=l[1]-o[1],e[56+d]=l[0]-o[0]}(v[e])}for(var P=v,S=0;S<64;++S){var O=P[0][S],C=P[1][S],T=P[2][S];P[0][S]=O+1.5747*T,P[1][S]=O-.1873*C-.4682*T,P[2][S]=O+1.8556*C}for(let t=0;t<3;++t)!function(e,t,r){for(var n,a=0;a<64;++a){t[r+a]=s.GxU.toHalfFloat((n=e[a])<=1?Math.sign(n)*Math.pow(Math.abs(n),2.2):Math.sign(n)*Math.pow(9.025013291561939,Math.abs(n)-1))}}(v[t],y[t],64*e)}let i=0;for(let n=0;n<3;++n){let a=r[e.idx[n]].type;for(let e=8*t;e<8*t+M;++e){i=b[n][e];for(let t=0;t<u;++t){let r=64*t+(7&e)*8;o.setUint16(i+0*a,y[n][r+0],!0),o.setUint16(i+2*a,y[n][r+1],!0),o.setUint16(i+4*a,y[n][r+2],!0),o.setUint16(i+6*a,y[n][r+3],!0),o.setUint16(i+8*a,y[n][r+4],!0),o.setUint16(i+10*a,y[n][r+5],!0),o.setUint16(i+12*a,y[n][r+6],!0),o.setUint16(i+14*a,y[n][r+7],!0),i+=16*a}}if(u!=d)for(let e=8*t;e<8*t+M;++e){let t=b[n][e]+8*u*2*a,r=64*u+(7&e)*8;for(let e=0;e<_;++e)o.setUint16(t+2*e*a,y[n][r+e],!0)}}}for(var A=new Uint16Array(l),o=new DataView(i.buffer),I=0;I<3;
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t.generateMipmaps=e?.generateMipmaps!==void 0&&e?.generateMipmaps,t}disposeOnDemandRenderer(){this._renderer.setRenderTarget(null),this._rendererIsDisposable&&(this._renderer.dispose(),this._renderer.forceContextLoss())}dispose(e){this.disposeOnDemandRenderer(),e&&this.renderTarget.dispose(),this.material instanceof s.BKk&&Object.values(this.material.uniforms).forEach(e=>{e.value instanceof s.gPd&&e.value.dispose()}),Object.values(this.material).forEach(e=>{e instanceof s.gPd&&e.dispose()}),this.material.dispose(),this._quad.geometry.dispose()}get width(){return this._width}set width(e){this._width=e,this._renderTarget.setSize(this._width,this._height)}get height(){return this._height}set height(e){this._height=e,this._renderTarget.setSize(this._width,this._height)}get renderer(){return this._renderer}get renderTarget(){return this._renderTarget}set renderTarget(e){this._renderTarget=e,this._width=e.width,this._height=e.height}get material(){return this._material}get type(){return 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83 84void main() { 85 vUv = uv; 86 gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0); 87} 88`,J=` 89// min half float value 90#define HALF_FLOAT_MIN vec3( -65504, -65504, -65504 ) 91// max half float value 92#define HALF_FLOAT_MAX vec3( 65504, 65504, 65504 ) 93 94uniform sampler2D sdr; 95uniform sampler2D gainMap; 96uniform vec3 gamma; 97uniform vec3 offsetHdr; 98uniform vec3 offsetSdr; 99uniform vec3 gainMapMin; 100uniform vec3 gainMapMax; 101uniform float weightFactor; 102 103varying vec2 vUv; 104 105void main() { 106 vec3 rgb = texture2D( sdr, vUv ).rgb; 107 vec3 recovery = texture2D( gainMap, vUv ).rgb; 108 vec3 logRecovery = pow( recovery, gamma ); 109 vec3 logBoost = gainMapMin * ( 1.0 - logRecovery ) + gainMapMax * logRecovery; 110 vec3 hdrColor = (rgb + offsetSdr) * exp2( logBoost * weightFactor ) - offsetHdr; 111 vec3 clampedHdrColor = max( HALF_FLOAT_MIN, min( HALF_FLOAT_MAX, hdrColor )); 112 gl_FragColor = vec4( clampedHdrColor , 1.0 ); 113} 114`;class ee extends s.BKk{_maxDisplayBoost;_hdrCapacityMin;_hdrCapacityMax;constructor({gamma:e,offsetHdr:t,offsetSdr:r,gainMapMin:n,gainMapMax:a,maxDisplayBoost:i,hdrCapacityMin:o,hdrCapacityMax:l,sdr:c,gainMap:u}){super({name:"GainMapDecoderMaterial",vertexShader:Q,fragmentShader:J,uniforms:{sdr:{value:c},gainMap:{value:u},gamma:{value:new s.Pq0(1/e[0],1/e[1],1/e[2])},offsetHdr:{value:new s.Pq0().fromArray(t)},offsetSdr:{value:new s.Pq0().fromArray(r)},gainMapMin:{value:new s.Pq0().fromArray(n)},gainMapMax:{value:new s.Pq0().fromArray(a)},weightFactor:{value:(Math.log2(i)-o)/(l-o)}},blending:s.XIg,depthTest:!1,depthWrite:!1}),this._maxDisplayBoost=i,this._hdrCapacityMin=o,this._hdrCapacityMax=l,this.needsUpdate=!0,this.uniformsNeedUpdate=!0}get sdr(){return this.uniforms.sdr.value}set sdr(e){this.uniforms.sdr.value=e}get gainMap(){return this.uniforms.gainMap.value}set gainMap(e){this.uniforms.gainMap.value=e}get offsetHdr(){return this.uniforms.offsetHdr.value.toArray()}set offsetHdr(e){this.uniforms.offsetHdr.value.fromArray(e)}get offsetSdr(){return this.uniforms.offsetSdr.value.toArray()}set offsetSdr(e){this.uniforms.offsetSdr.value.fromArray(e)}get gainMapMin(){return this.uniforms.gainMapMin.value.toArray()}set gainMapMin(e){this.uniforms.gainMapMin.value.fromArray(e)}get gainMapMax(){return this.uniforms.gainMapMax.value.toArray()}set gainMapMax(e){this.uniforms.gainMapMax.value.fromArray(e)}get gamma(){let e=this.uniforms.gamma.value;return[1/e.x,1/e.y,1/e.z]}set gamma(e){let t=this.uniforms.gamma.value;t.x=1/e[0],t.y=1/e[1],t.z=1/e[2]}get hdrCapacityMin(){return this._hdrCapacityMin}set hdrCapacityMin(e){this._hdrCapacityMin=e,this.calculateWeight()}get hdrCapacityMax(){return this._hdrCapacityMax}set hdrCapacityMax(e){this._hdrCapacityMax=e,this.calculateWeight()}get maxDisplayBoost(){return this._maxDisplayBoost}set maxDisplayBoost(e){this._maxDisplayBoost=Math.max(1,Math.min(65504,e)),this.calculateWeight()}calculateWeight(){let e=(Math.log2(this._maxDisplayBoost)-this._hdrCapacityMin)/(this._hdrCapacityMax-this._hdrCapacityMin);this.uniforms.weightFactor.value=Math.max(0,Math.min(1,e))}}!B.WebGLRenderer;class et extends K{constructor(e,t){super({renderer:e,createMaterial:e=>new ee(e),createQuadRenderer:e=>new q(e)},t)}async render(e,t,r,n){let{sdrImage:a,gainMapImage:i,needsFlip:o}=await this.processImages(r,n,"flipY"),{gainMap:s,sdr:l}=this.createTextures(a,i,o);this.updateQuadRenderer(e,a,s,l,t),e.render()}}class er extends et{load([e,t,r],n,a,i){let o,l,c,u=this.prepareQuadRenderer(),d=async()=>
114{if(o&&l&&c){try{await this.render(u,c,o,l)}catch(n){this.manager.itemError(e),this.manager.itemError(t),this.manager.itemError(r),"function"==typeof i&&i(n),u.disposeOnDemandRenderer();return}"function"==typeof n&&n(u),this.manager.itemEnd(e),this.manager.itemEnd(t),this.manager.itemEnd(r),u.disposeOnDemandRenderer()}},f=!0,h=0,p=0,m=!0,g=0,v=0,w=!0,y=0,b=0,E=()=>{"function"==typeof a&&a(new ProgressEvent("progress",{lengthComputable:f&&m&&w,loaded:p+v+b,total:h+g+y}))};this.manager.itemStart(e),this.manager.itemStart(t),this.manager.itemStart(r);let x=new s.Y9S(this._internalLoadingManager);x.setResponseType("arraybuffer"),x.setRequestHeader(this.requestHeader),x.setPath(this.path),x.setWithCredentials(this.withCredentials),x.load(e,async e=>{if("string"==typeof e)throw Error("Invalid sdr buffer");o=e,await d()},e=>{f=e.lengthComputable,p=e.loaded,h=e.total,E()},t=>{this.manager.itemError(e),"function"==typeof i&&i(t)});let M=new s.Y9S(this._internalLoadingManager);M.setResponseType("arraybuffer"),M.setRequestHeader(this.requestHeader),M.setPath(this.path),M.setWithCredentials(this.withCredentials),M.load(t,async e=>{if("string"==typeof e)throw Error("Invalid gainmap buffer");l=e,await d()},e=>{m=e.lengthComputable,v=e.loaded,g=e.total,E()},e=>{this.manager.itemError(t),"function"==typeof i&&i(e)});let _=new s.Y9S(this._internalLoadingManager);return _.setRequestHeader(this.requestHeader),_.setPath(this.path),_.setWithCredentials(this.withCredentials),_.load(r,async e=>{if("string"!=typeof e)throw Error("Invalid metadata string");c=JSON.parse(e),await d()},e=>{w=e.lengthComputable,b=e.loaded,y=e.total,E()},e=>{this.manager.itemError(r),"function"==typeof i&&i(e)}),u}}class en extends et{load(e,t,r,n){let a=this.prepareQuadRenderer(),i=new s.Y9S(this._internalLoadingManager);return 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ea={apartment:"lebombo_1k.hdr",city:"potsdamer_platz_1k.hdr",dawn:"kiara_1_dawn_1k.hdr",forest:"forest_slope_1k.hdr",lobby:"st_fagans_interior_1k.hdr",night:"dikhololo_night_1k.hdr",park:"rooitou_park_1k.hdr",studio:"studio_small_03_1k.hdr",sunset:"venice_sunset_1k.hdr",warehouse:"empty_warehouse_01_1k.hdr"},ei="https://raw.githack.com/pmndrs/drei-assets/456060a26bbeb8fdf79326f224b6d99b8bcce736/hdri/",eo=e=>Array.isArray(e),es=["/px.png","/nx.png","/py.png","/ny.png","/pz.png","/nz.png"];function el({files:e=es,path:t="",preset:r,colorSpace:n,extensions:a}={}){r&&(ed(r),e=ea[r],t=ei);let l=eo(e),{extension:c,isCubemap:u}=ef(e),d=eh(c);if(!d)throw Error("useEnvironment: Unrecognized file extension: "+e);let f=(0,o.C)(e=>e.gl);(0,i.useLayoutEffect)(()=>{("webp"===c||"jpg"===c||"jpeg"===c)&&f.domElement.addEventListener("webglcontextlost",function(){o.G.clear(d,l?[e]:e)},{once:!0})},[e,f.domElement]);let h=(0,o.G)(d,l?[e]:e,e=>{("webp"===c||"jpg"===c||"jpeg"===c)&&e.setRenderer(f),null==e.setPath||e.setPath(t),a&&a(e)}),p=l?h[0]:h;if("jpg"===c||"jpeg"===c||"webp"===c){var m;p=null==(m=p.renderTarget)?void 0:m.texture}return p.mapping=u?s.hy7:s.wfO,p.colorSpace=null!=n?n:u?"srgb":"srgb-linear",p}let ec={files:es,path:"",preset:void 0,extensions:void 0};el.preload=e=>{let t={...ec,...e},{files:r,path:n=""}=t,{preset:a,extensions:i}=t;a&&(ed(a),r=ea[a],n=ei);let{extension:s}=ef(r);if("webp"===s||"jpg"===s||"jpeg"===s)throw Error("useEnvironment: Preloading gainmaps is not supported");let l=eh(s);if(!l)throw Error("useEnvironment: Unrecognized file extension: "+r);o.G.preload(l,eo(r)?[r]:r,e=>{null==e.setPath||e.setPath(n),i&&i(e)})};let eu={files:es,preset:void 0};function ed(e){if(!(e in ea))throw Error("Preset must be one of: "+Object.keys(ea).join(", "))}function ef(e){var t;let 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