playcanvas
Version:
Open-source WebGL/WebGPU 3D engine for the web
26 lines (25 loc) • 839 B
JavaScript
var gsplatPacking_default = `
fn pack8888(v: vec4f) -> u32 {
let t = vec4u(v * 255.0) << vec4u(24u, 16u, 8u, 0u);
return t.x | t.y | t.z | t.w;
}
fn pack101010(v: vec3f) -> u32 {
let t = vec3u(v * vec3f(1023.0, 1023.0, 1023.0)) << vec3u(20u, 10u, 0u);
return t.x | t.y | t.z;
}
fn pack111110(v: vec3f) -> u32 {
let t = vec3u(v * vec3f(2047.0, 2047.0, 1023.0)) << vec3u(21u, 10u, 0u);
return t.x | t.y | t.z;
}
fn unpack8888(v: u32) -> vec4f {
return vec4f((vec4u(v) >> vec4u(24u, 16u, 8u, 0u)) & vec4u(0xffu)) / 255.0;
}
fn unpack101010(v: u32) -> vec3f {
return vec3f((vec3u(v) >> vec3u(20u, 10u, 0u)) & vec3u(0x3ffu)) / 1023.0;
}
fn unpack111110(v: u32) -> vec3f {
return vec3f((vec3u(v) >> vec3u(21u, 10u, 0u)) & vec3u(0x7ffu, 0x7ffu, 0x3ffu)) / vec3f(2047.0, 2047.0, 1023.0);
}`;
export {
gsplatPacking_default as default
};