| 1 |
- {"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nconst name = \"gaussianSplatting\";\nconst shader = `fn getDataUV(index: f32,dataTextureSize: vec2f)->vec2<f32> {let y: f32=floor(index/dataTextureSize.x);let x: f32=index-y*dataTextureSize.x;return vec2f((x+0.5),(y+0.5));}\nstruct Splat {center: vec4f,\ncolor: vec4f,\ncovA: vec4f,\ncovB: vec4f,};fn readSplat(splatIndex: f32,dataTextureSize: vec2f)->Splat {var splat: Splat;let splatUV=getDataUV(splatIndex,dataTextureSize);let splatUVi32=vec2<i32>(i32(splatUV.x),i32(splatUV.y));splat.center=textureLoad(centersTexture,splatUVi32,0);splat.color=textureLoad(colorsTexture,splatUVi32,0);splat.covA=textureLoad(covariancesATexture,splatUVi32,0)*splat.center.w;splat.covB=textureLoad(covariancesBTexture,splatUVi32,0)*splat.center.w;return splat;}\nfn gaussianSplatting(\nmeshPos: vec2<f32>,\nworldPos: vec3<f32>,\nscale: vec2<f32>,\ncovA: vec3<f32>,\ncovB: vec3<f32>,\nworldMatrix: mat4x4<f32>,\nviewMatrix: mat4x4<f32>,\nprojectionMatrix: mat4x4<f32>,\nfocal: vec2f,\ninvViewport: vec2f\n)->vec4f {let modelView=viewMatrix*worldMatrix;let camspace=viewMatrix*vec4f(worldPos,1.0);let pos2d=projectionMatrix*camspace;let bounds=1.2*pos2d.w;if (pos2d.z<0. || pos2d.x<-bounds || pos2d.x>bounds || pos2d.y<-bounds || pos2d.y>bounds) {return vec4f(0.0,0.0,2.0,1.0);}\nlet Vrk=mat3x3<f32>(\ncovA.x,covA.y,covA.z,\ncovA.y,covB.x,covB.y,\ncovA.z,covB.y,covB.z\n);let J=mat3x3<f32>(\nfocal.x/camspace.z,0.0,-(focal.x*camspace.x)/(camspace.z*camspace.z),\n0.0,focal.y/camspace.z,-(focal.y*camspace.y)/(camspace.z*camspace.z),\n0.0,0.0,0.0\n);let invy=mat3x3<f32>(\n1.0,0.0,0.0,\n0.0,-1.0,0.0,\n0.0,0.0,1.0\n);let T=invy*transpose(mat3x3<f32>(\nmodelView[0].xyz,\nmodelView[1].xyz,\nmodelView[2].xyz))*J;let cov2d=transpose(T)*Vrk*T;let mid=(cov2d[0][0]+cov2d[1][1])/2.0;let radius=length(vec2<f32>((cov2d[0][0]-cov2d[1][1])/2.0,cov2d[0][1]));let lambda1=mid+radius;let lambda2=mid-radius;if (lambda2<0.0) {return vec4f(0.0,0.0,2.0,1.0);}\nlet diagonalVector=normalize(vec2<f32>(cov2d[0][1],lambda1-cov2d[0][0]));let majorAxis=min(sqrt(2.0*lambda1),1024.0)*diagonalVector;let minorAxis=min(sqrt(2.0*lambda2),1024.0)*vec2<f32>(diagonalVector.y,-diagonalVector.x);let vCenter=vec2<f32>(pos2d.x,pos2d.y);return vec4f(\nvCenter+((meshPos.x*majorAxis+meshPos.y*minorAxis)*invViewport*pos2d.w)*scale,\npos2d.z,\npos2d.w\n);}\n`;\n// Sideeffect\nShaderStore.IncludesShadersStoreWGSL[name] = shader;\n/** @internal */\nexport const gaussianSplattingWGSL = {\n name,\n shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","IncludesShadersStoreWGSL","gaussianSplattingWGSL"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/ShadersWGSL/ShadersInclude/gaussianSplatting.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nconst name = \"gaussianSplatting\";\nconst shader = `fn getDataUV(index: f32,dataTextureSize: vec2f)->vec2<f32> {let y: f32=floor(index/dataTextureSize.x);let x: f32=index-y*dataTextureSize.x;return vec2f((x+0.5),(y+0.5));}\nstruct Splat {center: vec4f,\ncolor: vec4f,\ncovA: vec4f,\ncovB: vec4f,};fn readSplat(splatIndex: f32,dataTextureSize: vec2f)->Splat {var splat: Splat;let splatUV=getDataUV(splatIndex,dataTextureSize);let splatUVi32=vec2<i32>(i32(splatUV.x),i32(splatUV.y));splat.center=textureLoad(centersTexture,splatUVi32,0);splat.color=textureLoad(colorsTexture,splatUVi32,0);splat.covA=textureLoad(covariancesATexture,splatUVi32,0)*splat.center.w;splat.covB=textureLoad(covariancesBTexture,splatUVi32,0)*splat.center.w;return splat;}\nfn gaussianSplatting(\nmeshPos: vec2<f32>,\nworldPos: vec3<f32>,\nscale: vec2<f32>,\ncovA: vec3<f32>,\ncovB: vec3<f32>,\nworldMatrix: mat4x4<f32>,\nviewMatrix: mat4x4<f32>,\nprojectionMatrix: mat4x4<f32>,\nfocal: vec2f,\ninvViewport: vec2f\n)->vec4f {let modelView=viewMatrix*worldMatrix;let camspace=viewMatrix*vec4f(worldPos,1.0);let pos2d=projectionMatrix*camspace;let bounds=1.2*pos2d.w;if (pos2d.z<0. || pos2d.x<-bounds || pos2d.x>bounds || pos2d.y<-bounds || pos2d.y>bounds) {return vec4f(0.0,0.0,2.0,1.0);}\nlet Vrk=mat3x3<f32>(\ncovA.x,covA.y,covA.z,\ncovA.y,covB.x,covB.y,\ncovA.z,covB.y,covB.z\n);let J=mat3x3<f32>(\nfocal.x/camspace.z,0.0,-(focal.x*camspace.x)/(camspace.z*camspace.z),\n0.0,focal.y/camspace.z,-(focal.y*camspace.y)/(camspace.z*camspace.z),\n0.0,0.0,0.0\n);let invy=mat3x3<f32>(\n1.0,0.0,0.0,\n0.0,-1.0,0.0,\n0.0,0.0,1.0\n);let T=invy*transpose(mat3x3<f32>(\nmodelView[0].xyz,\nmodelView[1].xyz,\nmodelView[2].xyz))*J;let cov2d=transpose(T)*Vrk*T;let mid=(cov2d[0][0]+cov2d[1][1])/2.0;let radius=length(vec2<f32>((cov2d[0][0]-cov2d[1][1])/2.0,cov2d[0][1]));let lambda1=mid+radius;let lambda2=mid-radius;if (lambda2<0.0) {return vec4f(0.0,0.0,2.0,1.0);}\nlet diagonalVector=normalize(vec2<f32>(cov2d[0][1],lambda1-cov2d[0][0]));let majorAxis=min(sqrt(2.0*lambda1),1024.0)*diagonalVector;let minorAxis=min(sqrt(2.0*lambda2),1024.0)*vec2<f32>(diagonalVector.y,-diagonalVector.x);let vCenter=vec2<f32>(pos2d.x,pos2d.y);return vec4f(\nvCenter+((meshPos.x*majorAxis+meshPos.y*minorAxis)*invViewport*pos2d.w)*scale,\npos2d.z,\npos2d.w\n);}\n`;\n// Sideeffect\nShaderStore.IncludesShadersStoreWGSL[name] = shader;\n/** @internal */\nexport const gaussianSplattingWGSL = { 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;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,CAAC;AACD;AACAF,WAAW,CAACG,wBAAwB,CAACF,IAAI,CAAC,GAAGC,MAAM;AACnD;AACA,OAAO,MAAME,qBAAqB,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}
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