playcanvas/build/playcanvas/src/scene/shader-lib/wgsl/chunks/gsplat/vert/gsplatQuatToMat3.d.ts

Open-source WebGL/WebGPU 3D engine for the web

declare const _default: "\n// Rotation source data is f16 - compute in half precision\nfn quatToMat3(r: half4) -> half3x3 {\n    let r2: half4 = r + r;\n    let x: half   = r2.x * r.w;\n    let y: half4  = r2.y * r;\n    let z: half4  = r2.z * r;\n    let w: half   = r2.w * r.w;\n\n    return half3x3(\n        half(1.0) - z.z - w,  y.z + x,              y.w - z.x,\n        y.z - x,              half(1.0) - y.y - w,   z.w + y.x,\n        y.w + z.x,            z.w - y.x,             half(1.0) - y.y - z.z\n    );\n}\n\nfn quatMul(a: half4, b: half4) -> half4 {\n    return half4(\n        a.w * b.x + a.x * b.w + a.y * b.z - a.z * b.y,\n        a.w * b.y - a.x * b.z + a.y * b.w + a.z * b.x,\n        a.w * b.z + a.x * b.y - a.y * b.x + a.z * b.w,\n        a.w * b.w - a.x * b.x - a.y * b.y - a.z * b.z\n    );\n}\n";
export default _default;