playcanvas
Version:
PlayCanvas WebGL game engine
21 lines (19 loc) • 653 B
JavaScript
var gsplatSourceVS = `
attribute vec3 vertex_position;
attribute uint vertex_id_attrib;
uniform uint numSplats;
uniform uint splatTextureSize;
uniform highp usampler2D splatOrder;
bool initSource(out SplatSource source) {
source.order = vertex_id_attrib + uint(vertex_position.z);
if (source.order >= numSplats) {
return false;
}
ivec2 orderUV = ivec2(source.order % splatTextureSize, source.order / splatTextureSize);
source.id = texelFetch(splatOrder, orderUV, 0).r;
source.uv = ivec2(source.id % splatTextureSize, source.id / splatTextureSize);
source.cornerUV = vertex_position.xy;
return true;
}
`;
export { gsplatSourceVS as default };