playcanvas/build/playcanvas/src/scene/shader-lib/glsl/chunks/gsplat/vert/gsplatSogsSH.d.ts

PlayCanvas WebGL game engine

declare const _default: "\nuniform highp sampler2D sh_labels;\nuniform highp sampler2D sh_centroids;\n\nuniform float shN_mins;\nuniform float shN_maxs;\n\n// To support each SH degree, readSHData is overloaded based on the SH vector depth \n\nvoid readSHData(in SplatSource source, out vec3 sh[SH_COEFFS], out float scale) {\n    // extract spherical harmonics palette index\n    ivec2 t = ivec2(texelFetch(sh_labels, source.uv, 0).xy * 255.0);\n    int n = t.x + t.y * 256;\n    int u = (n % 64) * SH_COEFFS;\n    int v = n / 64;\n\n    // calculate offset into the centroids texture and read consecutive texels\n    for (int i = 0; i < SH_COEFFS; i++) {\n        sh[i] = mix(vec3(shN_mins), vec3(shN_maxs), texelFetch(sh_centroids, ivec2(u + i, v), 0).xyz);\n    }\n\n    scale = 1.0;\n}\n";
export default _default;