playcanvas/build/playcanvas/src/scene/shader-lib/wgsl/chunks/lit/frag/cubeMapProject.d.ts

PlayCanvas WebGL game engine

declare const _default: "\n\n#if LIT_CUBEMAP_PROJECTION == BOX\n    uniform envBoxMin: vec3f;\n    uniform envBoxMax: vec3f;\n#endif\n\nfn cubeMapProject(nrdir: vec3f) -> vec3f {\n\n    #if LIT_CUBEMAP_PROJECTION == NONE\n        return cubeMapRotate(nrdir);\n    #endif\n\n    #if LIT_CUBEMAP_PROJECTION == BOX\n\n        let nrdir_rotated: vec3f = cubeMapRotate(nrdir);\n\n        let rbmax: vec3f = (uniform.envBoxMax - vPositionW) / nrdir_rotated;\n        let rbmin: vec3f = (uniform.envBoxMin - vPositionW) / nrdir_rotated;\n\n        let rbminmax: vec3f = select(rbmin, rbmax, nrdir_rotated > vec3f(0.0));\n        let fa: f32 = min(min(rbminmax.x, rbminmax.y), rbminmax.z);\n\n        let posonbox: vec3f = vPositionW + nrdir_rotated * fa;\n        let envBoxPos: vec3f = (uniform.envBoxMin + uniform.envBoxMax) * 0.5;\n        return normalize(posonbox - envBoxPos);\n\n    #endif\n}\n";
export default _default;