@babylonjs/viewer/dist/chunks/iblVoxelGrid3dDebug.fragment-B_oD-4g7.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-Bw2N6w1y.esm.min.js";const o="iblVoxelGrid3dDebugPixelShader",a="precision highp sampler3D;varying vec2 vUV;uniform sampler3D voxelTexture;uniform sampler2D voxelSlabTexture;uniform sampler2D textureSampler;uniform vec4 sizeParams;\n#define offsetX sizeParams.x\n#define offsetY sizeParams.y\n#define widthScale sizeParams.z\n#define heightScale sizeParams.w\nuniform float mipNumber;void main(void) {vec2 uv =\nvec2((offsetX+vUV.x)*widthScale,(offsetY+vUV.y)*heightScale);vec4 background=texture2D(textureSampler,vUV);vec4 voxelSlab=texture2D(voxelSlabTexture,vUV);ivec3 size=textureSize(voxelTexture,int(mipNumber));float dimension=ceil(sqrt(float(size.z)));vec2 samplePos=fract(uv.xy*vec2(dimension));int sampleIndex=int(floor(uv.x*float(dimension)) +\nfloor(uv.y*float(dimension))*dimension);float mip_separator=0.0;if (samplePos.x<0.01 || samplePos.y<0.01) {mip_separator=1.0;}\nbool outBounds=sampleIndex>size.z-1 ? true : false;sampleIndex=clamp(sampleIndex,0,size.z-1);ivec2 samplePosInt=ivec2(samplePos.xy*vec2(size.xy));vec3 voxel=texelFetch(voxelTexture,\nivec3(samplePosInt.x,samplePosInt.y,sampleIndex),\nint(mipNumber))\n.rgb;if (uv.x<0.0 || uv.x>1.0 || uv.y<0.0 || uv.y>1.0) {gl_FragColor.rgba=background;} else {if (outBounds) {voxel=vec3(0.15,0.0,0.0);} else {if (voxel.r>0.001) {voxel.g=1.0;}\nvoxel.r+=mip_separator;}\nglFragColor.rgb=mix(background.rgb,voxelSlab.rgb,voxelSlab.a)+voxel;glFragColor.a=1.0;}}";e.ShadersStore[o]||(e.ShadersStore[o]=a);const r={name:o,shader:a};export{r as iblVoxelGrid3dDebugPixelShader};
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