screenSpaceReflection2Blur.fragment.js 2.5 KB

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  1. // Do not edit.
  2. import { ShaderStore } from "../Engines/shaderStore.js";
  3. const name = "screenSpaceReflection2BlurPixelShader";
  4. const shader = `#if defined(WEBGL2) || defined(WEBGPU) || defined(NATIVE)
  5. #define TEXTUREFUNC(s,c,lod) texture2DLodEXT(s,c,lod)
  6. #else
  7. #define TEXTUREFUNC(s,c,bias) texture2D(s,c,bias)
  8. #endif
  9. uniform sampler2D textureSampler;varying vec2 vUV;uniform vec2 texelOffsetScale;const float weights[8]=float[8] (0.071303,0.131514,0.189879,0.321392,0.452906, 0.584419,0.715932,0.847445);void processSample(vec2 uv,float i,vec2 stepSize,inout vec4 accumulator,inout float denominator)
  10. {vec2 offsetUV=stepSize*i+uv;float coefficient=weights[int(2.0-abs(i))];accumulator+=TEXTUREFUNC(textureSampler,offsetUV,0.0)*coefficient;denominator+=coefficient;}
  11. void main()
  12. {vec4 colorFull=TEXTUREFUNC(textureSampler,vUV,0.0);if (dot(colorFull,vec4(1.0))==0.0) {gl_FragColor=colorFull;return;}
  13. float blurRadius=colorFull.a*255.0;
  14. vec2 stepSize=texelOffsetScale.xy*blurRadius;vec4 accumulator=TEXTUREFUNC(textureSampler,vUV,0.0)*0.214607;float denominator=0.214607;processSample(vUV,1.0,stepSize,accumulator,denominator);processSample(vUV,1.0*0.2,stepSize,accumulator,denominator);processSample(vUV,1.0*0.4,stepSize,accumulator,denominator);processSample(vUV,1.0*0.6,stepSize,accumulator,denominator);processSample(vUV,1.0*0.8,stepSize,accumulator,denominator);processSample(vUV,1.0*1.2,stepSize,accumulator,denominator);processSample(vUV,1.0*1.4,stepSize,accumulator,denominator);processSample(vUV,1.0*1.6,stepSize,accumulator,denominator);processSample(vUV,1.0*1.8,stepSize,accumulator,denominator);processSample(vUV,1.0*2.0,stepSize,accumulator,denominator);processSample(vUV,-1.0,stepSize,accumulator,denominator);processSample(vUV,-1.0*0.2,stepSize,accumulator,denominator);processSample(vUV,-1.0*0.4,stepSize,accumulator,denominator);processSample(vUV,-1.0*0.6,stepSize,accumulator,denominator);processSample(vUV,-1.0*0.8,stepSize,accumulator,denominator);processSample(vUV,-1.0*1.2,stepSize,accumulator,denominator);processSample(vUV,-1.0*1.4,stepSize,accumulator,denominator);processSample(vUV,-1.0*1.6,stepSize,accumulator,denominator);processSample(vUV,-1.0*1.8,stepSize,accumulator,denominator);processSample(vUV,-1.0*2.0,stepSize,accumulator,denominator);gl_FragColor=vec4(accumulator.rgb/denominator,colorFull.a);}
  15. `;
  16. // Sideeffect
  17. ShaderStore.ShadersStore[name] = shader;
  18. /** @internal */
  19. export const screenSpaceReflection2BlurPixelShader = { name, shader };
  20. //# sourceMappingURL=screenSpaceReflection2Blur.fragment.js.map