https://balloon99-kj7qgchv.manus.space/assets/fxaa.fragment-DfDkdQo7.js

1import{p as e}from"./fileTools.pure-O3hflNMy.js";const a="fxaaPixelShader",r=`varying vUV: vec2f;var textureSamplerSampler: sampler;var textureSampler: texture_2d<f32>;uniform texelSize: vec2f;varying sampleCoordS: vec2f;varying sampleCoordE: vec2f;varying sampleCoordN: vec2f;varying sampleCoordW: vec2f;varying sampleCoordNW: vec2f;varying sampleCoordSE: vec2f;varying sampleCoordNE: vec2f;varying sampleCoordSW: vec2f;const fxaaQualitySubpix: f32=1.0;const fxaaQualityEdgeThreshold: f32=0.166;const fxaaQualityEdgeThresholdMin: f32=0.0833;const kLumaCoefficients: vec3f= vec3f(0.2126,0.7152,0.0722);fn FxaaLuma(rgba: vec4f)->f32 {return dot(rgba.rgb,kLumaCoefficients);} 
2@fragment
3fn main(input: FragmentInputs)->FragmentOutputs {var posM: vec2f;posM.x=input.vUV.x;posM.y=input.vUV.y;var rgbyM: vec4f=textureSampleLevel(textureSampler,textureSamplerSampler,input.vUV,0.0);var lumaM: f32=FxaaLuma(rgbyM);var lumaS: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordS,0.0));var lumaE: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordE,0.0));var lumaN: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordN,0.0));var lumaW: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordW,0.0));var maxSM: f32=max(lumaS,lumaM);var minSM: f32=min(lumaS,lumaM);var maxESM: f32=max(lumaE,maxSM);var minESM: f32=min(lumaE,minSM);var maxWN: f32=max(lumaN,lumaW);var minWN: f32=min(lumaN,lumaW);var rangeMax: f32=max(maxWN,maxESM);var rangeMin: f32=min(minWN,minESM);var rangeMaxScaled: f32=rangeMax*fxaaQualityEdgeThreshold;var range: f32=rangeMax-rangeMin;var rangeMaxClamped: f32=max(fxaaQualityEdgeThresholdMin,rangeMaxScaled);
4#ifndef MALI
5if(range<rangeMaxClamped) 
6{fragmentOutputs.color=rgbyM;return fragmentOutputs;}
7#endif
8var lumaNW: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordNW,0.0));var lumaSE: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordSE,0.0));var lumaNE: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordNE,0.0));var lumaSW: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,input.sampleCoordSW,0.0));var lumaNS: f32=lumaN+lumaS;var lumaWE: f32=lumaW+lumaE;var subpixRcpRange: f32=1.0/range;var subpixNSWE: f32=lumaNS+lumaWE;var edgeHorz1: f32=(-2.0*lumaM)+lumaNS;var edgeVert1: f32=(-2.0*lumaM)+lumaWE;var lumaNESE: f32=lumaNE+lumaSE;var lumaNWNE: f32=lumaNW+lumaNE;var edgeHorz2: f32=(-2.0*lumaE)+lumaNESE;var edgeVert2: f32=(-2.0*lumaN)+lumaNWNE;var lumaNWSW: f32=lumaNW+lumaSW;var lumaSWSE: f32=lumaSW+lumaSE;var edgeHorz4: f32=(abs(edgeHorz1)*2.0)+abs(edgeHorz2);var edgeVert4: f32=(abs(edgeVert1)*2.0)+abs(edgeVert2);var edgeHorz3: f32=(-2.0*lumaW)+lumaNWSW;var edgeVert3: f32=(-2.0*lumaS)+lumaSWSE;var edgeHorz: f32=abs(edgeHorz3)+edgeHorz4;var edgeVert: f32=abs(edgeVert3)+edgeVert4;var subpixNWSWNESE: f32=lumaNWSW+lumaNESE;var lengthSign: f32=uniforms.texelSize.x;var horzSpan: bool=edgeHorz>=edgeVert;var subpixA: f32=subpixNSWE*2.0+subpixNWSWNESE;if (!horzSpan)
9{lumaN=lumaW;}
10if (!horzSpan) 
11{lumaS=lumaE;}
12if (horzSpan) 
13{lengthSign=uniforms.texelSize.y;}
14var subpixB: f32=(subpixA*(1.0/12.0))-lumaM;var gradientN: f32=lumaN-lumaM;var gradientS: f32=lumaS-lumaM;var lumaNN: f32=lumaN+lumaM;var lumaSS: f32=lumaS+lumaM;var pairN: bool=abs(gradientN)>=abs(gradientS);var gradient: f32=max(abs(gradientN),abs(gradientS));if (pairN)
15{lengthSign=-lengthSign;}
16var subpixC: f32=clamp(abs(subpixB)*subpixRcpRange,0.0,1.0);var posB: vec2f;posB.x=posM.x;posB.y=posM.y;var offNP: vec2f;offNP.x=select(uniforms.texelSize.x,0.0,(!horzSpan));offNP.y=select(uniforms.texelSize.y,0.0,(horzSpan));if (!horzSpan) 
17{posB.x+=lengthSign*0.5;}
18if (horzSpan)
19{posB.y+=lengthSign*0.5;}
20var posN: vec2f;posN.x=posB.x-offNP.x*1.5;posN.y=posB.y-offNP.y*1.5;var posP: vec2f;posP.x=posB.x+offNP.x*1.5;posP.y=posB.y+offNP.y*1.5;var subpixD: f32=((-2.0)*subpixC)+3.0;var lumaEndN: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,posN,0.0));var subpixE: f32=subpixC*subpixC;var lumaEndP: f32=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,posP,0.0));if (!pairN) 
21{lumaNN=lumaSS;}
22var gradientScaled: f32=gradient*1.0/4.0;var lumaMM: f32=lumaM-lumaNN*0.5;var subpixF: f32=subpixD*subpixE;var lumaMLTZero: bool=lumaMM<0.0;lumaEndN-=lumaNN*0.5;lumaEndP-=lumaNN*0.5;var doneN: bool=abs(lumaEndN)>=gradientScaled;var doneP: bool=abs(lumaEndP)>=gradientScaled;if (!doneN) 
23{posN.x-=offNP.x*3.0;}
24if (!doneN) 
25{posN.y-=offNP.y*3.0;}
26var doneNP: bool=(!doneN) || (!doneP);if (!doneP) 
27{posP.x+=offNP.x*3.0;}
28if (!doneP)
29{posP.y+=offNP.y*3.0;}
30if (doneNP)
31{if (!doneN) {lumaEndN=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,posN.xy,0.0));}
32if (!doneP) {lumaEndP=FxaaLuma(textureSampleLevel(textureSampler,textureSamplerSampler,posP.xy,0.0));}
33if (!doneN) {lumaEndN=lumaEndN-lumaNN*0.5;}
34if (!doneP) {lumaEndP=lumaEndP-lumaNN*0.5;}
35doneN=abs(lumaEndN)>=gradientScaled;doneP=abs(lumaEndP)>=gradientScaled;if (!doneN) {posN.x-=offNP.x*12.0;}
36if (!doneN) {posN.y-=offNP.y*12.0;}
37doneNP=(!doneN) || (!doneP);if (!doneP) {posP.x+=offNP.x*12.0;}
38if (!doneP) {posP.y+=offNP.y*12.0;}}

39var dstN: f32=posM.x-posN.x;var dstP: f32=posP.x-posM.x;if (!horzSpan)
40{dstN=posM.y-posN.y;}
41if (!horzSpan) 
42{dstP=posP.y-posM.y;}
43var goodSpanN: bool=(lumaEndN<0.0) != lumaMLTZero;var spanLength: f32=(dstP+dstN);var goodSpanP: bool=(lumaEndP<0.0) != lumaMLTZero;var spanLengthRcp: f32=1.0/spanLength;var directionN: bool=dstN<dstP;var dst: f32=min(dstN,dstP);var goodSpan: bool=select(goodSpanP,goodSpanN,directionN);var subpixG: f32=subpixF*subpixF;var pixelOffset: f32=(dst*(-spanLengthRcp))+0.5;var subpixH: f32=subpixG*fxaaQualitySubpix;var pixelOffsetGood: f32=select(0.0,pixelOffset,goodSpan);var pixelOffsetSubpix: f32=max(pixelOffsetGood,subpixH);if (!horzSpan)
44{posM.x+=pixelOffsetSubpix*lengthSign;}
45if (horzSpan)
46{posM.y+=pixelOffsetSubpix*lengthSign;}
47#ifdef MALI
48if(range<rangeMaxClamped) 
49{fragmentOutputs.color=rgbyM;}
50else
51{fragmentOutputs.color=textureSampleLevel(textureSampler,textureSamplerSampler,posM,0.0);}
52#else
53fragmentOutputs.color=textureSampleLevel(textureSampler,textureSamplerSampler,posM,0.0);
54#endif
55}`;e.ShadersStoreWGSL[a]||(e.ShadersStoreWGSL[a]=r);const m={name:a,shader:r};export{m as fxaaPixelShaderWGSL};