{"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nconst name = \"gaussianSplatting\";\nconst shader = `#if !defined(WEBGL2) && !defined(WEBGPU) && !defined(NATIVE)\nmat3 transpose(mat3 matrix) {return mat3(matrix[0][0],matrix[1][0],matrix[2][0],\nmatrix[0][1],matrix[1][1],matrix[2][1],\nmatrix[0][2],matrix[1][2],matrix[2][2]);}\n#endif\nvec2 getDataUV(float index,vec2 textureSize) {float y=floor(index/textureSize.x);float x=index-y*textureSize.x;return vec2((x+0.5)/textureSize.x,(y+0.5)/textureSize.y);}\nstruct Splat {vec4 center;vec4 color;vec4 covA;vec4 covB;};Splat readSplat(float splatIndex)\n{Splat splat;vec2 splatUV=getDataUV(splatIndex,dataTextureSize);splat.center=texture2D(centersTexture,splatUV);splat.color=texture2D(colorsTexture,splatUV);splat.covA=texture2D(covariancesATexture,splatUV)*splat.center.w;splat.covB=texture2D(covariancesBTexture,splatUV)*splat.center.w;return splat;}\nvec4 gaussianSplatting(vec2 meshPos,vec3 worldPos,vec2 scale,vec3 covA,vec3 covB,mat4 worldMatrix,mat4 viewMatrix,mat4 projectionMatrix)\n{mat4 modelView=viewMatrix*worldMatrix;vec4 camspace=viewMatrix*vec4(worldPos,1.);vec4 pos2d=projectionMatrix*camspace;float bounds=1.2*pos2d.w;if (pos2d.z<-pos2d.w || pos2d.x<-bounds || pos2d.x>bounds\n|| pos2d.y<-bounds || pos2d.y>bounds) {return vec4(0.0,0.0,2.0,1.0);}\nmat3 Vrk=mat3(\ncovA.x,covA.y,covA.z,\ncovA.y,covB.x,covB.y,\ncovA.z,covB.y,covB.z\n);mat3 J=mat3(\nfocal.x/camspace.z,0.,-(focal.x*camspace.x)/(camspace.z*camspace.z),\n0.,focal.y/camspace.z,-(focal.y*camspace.y)/(camspace.z*camspace.z),\n0.,0.,0.\n);mat3 invy=mat3(1,0,0,0,-1,0,0,0,1);mat3 T=invy*transpose(mat3(modelView))*J;mat3 cov2d=transpose(T)*Vrk*T;float mid=(cov2d[0][0]+cov2d[1][1])/2.0;float radius=length(vec2((cov2d[0][0]-cov2d[1][1])/2.0,cov2d[0][1]));float lambda1=mid+radius,lambda2=mid-radius;if (lambda2<0.0)\n{return vec4(0.0,0.0,2.0,1.0);}\nvec2 diagonalVector=normalize(vec2(cov2d[0][1],lambda1-cov2d[0][0]));vec2 majorAxis=min(sqrt(2.0*lambda1),1024.0)*diagonalVector;vec2 minorAxis=min(sqrt(2.0*lambda2),1024.0)*vec2(diagonalVector.y,-diagonalVector.x);vec2 vCenter=vec2(pos2d);return vec4(\nvCenter \n+ ((meshPos.x*majorAxis\n+ meshPos.y*minorAxis)*invViewport*pos2d.w)*scale,pos2d.zw);}`;\n// Sideeffect\nShaderStore.IncludesShadersStore[name] = shader;\n/** @internal */\nexport const gaussianSplatting = {\n  name,\n  shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","IncludesShadersStore","gaussianSplatting"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Shaders/ShadersInclude/gaussianSplatting.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nconst name = \"gaussianSplatting\";\nconst shader = `#if !defined(WEBGL2) && !defined(WEBGPU) && !defined(NATIVE)\nmat3 transpose(mat3 matrix) {return mat3(matrix[0][0],matrix[1][0],matrix[2][0],\nmatrix[0][1],matrix[1][1],matrix[2][1],\nmatrix[0][2],matrix[1][2],matrix[2][2]);}\n#endif\nvec2 getDataUV(float index,vec2 textureSize) {float y=floor(index/textureSize.x);float x=index-y*textureSize.x;return vec2((x+0.5)/textureSize.x,(y+0.5)/textureSize.y);}\nstruct Splat {vec4 center;vec4 color;vec4 covA;vec4 covB;};Splat readSplat(float splatIndex)\n{Splat splat;vec2 splatUV=getDataUV(splatIndex,dataTextureSize);splat.center=texture2D(centersTexture,splatUV);splat.color=texture2D(colorsTexture,splatUV);splat.covA=texture2D(covariancesATexture,splatUV)*splat.center.w;splat.covB=texture2D(covariancesBTexture,splatUV)*splat.center.w;return splat;}\nvec4 gaussianSplatting(vec2 meshPos,vec3 worldPos,vec2 scale,vec3 covA,vec3 covB,mat4 worldMatrix,mat4 viewMatrix,mat4 projectionMatrix)\n{mat4 modelView=viewMatrix*worldMatrix;vec4 camspace=viewMatrix*vec4(worldPos,1.);vec4 pos2d=projectionMatrix*camspace;float bounds=1.2*pos2d.w;if (pos2d.z<-pos2d.w || pos2d.x<-bounds || pos2d.x>bounds\n|| pos2d.y<-bounds || pos2d.y>bounds) {return vec4(0.0,0.0,2.0,1.0);}\nmat3 Vrk=mat3(\ncovA.x,covA.y,covA.z,\ncovA.y,covB.x,covB.y,\ncovA.z,covB.y,covB.z\n);mat3 J=mat3(\nfocal.x/camspace.z,0.,-(focal.x*camspace.x)/(camspace.z*camspace.z),\n0.,focal.y/camspace.z,-(focal.y*camspace.y)/(camspace.z*camspace.z),\n0.,0.,0.\n);mat3 invy=mat3(1,0,0,0,-1,0,0,0,1);mat3 T=invy*transpose(mat3(modelView))*J;mat3 cov2d=transpose(T)*Vrk*T;float mid=(cov2d[0][0]+cov2d[1][1])/2.0;float radius=length(vec2((cov2d[0][0]-cov2d[1][1])/2.0,cov2d[0][1]));float lambda1=mid+radius,lambda2=mid-radius;if (lambda2<0.0)\n{return vec4(0.0,0.0,2.0,1.0);}\nvec2 diagonalVector=normalize(vec2(cov2d[0][1],lambda1-cov2d[0][0]));vec2 majorAxis=min(sqrt(2.0*lambda1),1024.0)*diagonalVector;vec2 minorAxis=min(sqrt(2.0*lambda2),1024.0)*vec2(diagonalVector.y,-diagonalVector.x);vec2 vCenter=vec2(pos2d);return vec4(\nvCenter \n+ ((meshPos.x*majorAxis\n+ meshPos.y*minorAxis)*invViewport*pos2d.w)*scale,pos2d.zw);}`;\n// Sideeffect\nShaderStore.IncludesShadersStore[name] = shader;\n/** @internal */\nexport const gaussianSplatting = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,8BAA8B;AAC1D,MAAMC,IAAI,GAAG,mBAAmB;AAChC,MAAMC,MAAM,GAAG;AACf;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,8DAA8D;AAC9D;AACAF,WAAW,CAACG,oBAAoB,CAACF,IAAI,CAAC,GAAGC,MAAM;AAC/C;AACA,OAAO,MAAME,iBAAiB,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}