playcanvas

Version:

PlayCanvas WebGL game engine

19 lines (17 loc) • 660 B

JavaScript

var gsplatSogsSHVS = `
var sh_labels: texture_2d<f32>;
var sh_centroids: texture_2d<f32>;
uniform shN_mins: f32;
uniform shN_maxs: f32;
fn readSHData(source: ptr<function, SplatSource>, sh: ptr<function, array<vec3f, SH_COEFFS>>, scale: ptr<function, f32>) {
	let t: vec2<i32> = vec2<i32>(textureLoad(sh_labels, source.uv, 0).xy * 255.0);
	let n: i32 = t.x + t.y * 256;
	let u: i32 = (n % 64) * SH_COEFFS;
	let v: i32 = n / 64;
	for (var i: i32 = 0; i < SH_COEFFS; i = i + 1) {
		sh[i] = mix(vec3f(uniform.shN_mins), vec3f(uniform.shN_maxs), textureLoad(sh_centroids, vec2<i32>(u + i, v), 0).xyz);
	}
	*scale = 1.0;
}
`;

export { gsplatSogsSHVS as default };