declare const _default: "\nattribute vec3 vertex_position;         // xy: cornerUV, z: render order offset\nattribute uint vertex_id_attrib;        // render order base\n\nuniform uint numSplats;                 // total number of splats\nuniform uint splatTextureSize;          // texture size for splat data\nuniform highp usampler2D splatOrder;    // per-splat index to source gaussian\n\n// initialize the splat source structure\nbool initSource(out SplatSource source) {\n    // calculate splat order\n    source.order = vertex_id_attrib + uint(vertex_position.z);\n\n    // return if out of range (since the last block of splats may be partially full)\n    if (source.order >= numSplats) {\n        return false;\n    }\n\n    ivec2 orderUV = ivec2(source.order % splatTextureSize, source.order / splatTextureSize);\n\n    // read splat id\n    source.id = texelFetch(splatOrder, orderUV, 0).r;\n\n    // map id to uv\n    source.uv = ivec2(source.id % splatTextureSize, source.id / splatTextureSize);\n\n    // get the corner\n    source.cornerUV = vertex_position.xy;\n\n    return true;\n}\n";
export default _default;