@babylonjs/viewer/dist/chunks/iblShadowSpatialBlur.fragment-DlSrWbSr.esm.min.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import{S as e}from"./index-BPURObVq.esm.min.js";const r="iblShadowSpatialBlurPixelShader",o="precision highp sampler2D;\n#define PI 3.1415927\nvarying vec2 vUV;uniform sampler2D depthSampler;uniform sampler2D worldNormalSampler;uniform sampler2D voxelTracingSampler;uniform vec4 blurParameters;\n#define stridef blurParameters.x\n#define worldScale blurParameters.y\nconst float weights[5]=float[5](0.0625,0.25,0.375,0.25,0.0625);const int nbWeights=5;vec2 max2(vec2 v,vec2 w) {return vec2(max(v.x,w.x),max(v.y,w.y));}\nvoid main(void)\n{vec2 gbufferRes=vec2(textureSize(depthSampler,0));ivec2 gbufferPixelCoord=ivec2(vUV*gbufferRes);vec2 shadowRes=vec2(textureSize(voxelTracingSampler,0));ivec2 shadowPixelCoord=ivec2(vUV*shadowRes);vec3 N=texelFetch(worldNormalSampler,gbufferPixelCoord,0).xyz;if (length(N)<0.01) {glFragColor=vec4(1.0,1.0,0.0,1.0);return;}\nfloat depth=-texelFetch(depthSampler,gbufferPixelCoord,0).x;vec4 X=vec4(0.0);for(int y=0; y<nbWeights; ++y) {for(int x=0; x<nbWeights; ++x) {ivec2 gBufferCoords=gbufferPixelCoord+int(stridef)*ivec2(x-(nbWeights>>1),y-(nbWeights>>1));ivec2 shadowCoords=shadowPixelCoord+int(stridef)*ivec2(x-(nbWeights>>1),y-(nbWeights>>1));vec4 T=texelFetch(voxelTracingSampler,shadowCoords,0);float ddepth=-texelFetch(depthSampler,gBufferCoords,0).x-depth;vec3 dN=texelFetch(worldNormalSampler,gBufferCoords,0).xyz-N;float w=weights[x]*weights[y] *\nexp2(max(-1000.0/(worldScale*worldScale),-0.5) *\n(ddepth*ddepth) -\n1e1*dot(dN,dN));X+=vec4(w*T.x,w*T.y,w*T.z,w);}}\ngl_FragColor=vec4(X.x/X.w,X.y/X.w,X.z/X.w,1.0);}";e.ShadersStore[r]||(e.ShadersStore[r]=o);const t={name:r,shader:o};export{t as iblShadowSpatialBlurPixelShader};
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