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

PlayCanvas WebGL game engine

declare const _default: "\n\n#if LIT_CUBEMAP_PROJECTION == BOX\n    uniform vec3 envBoxMin;\n    uniform vec3 envBoxMax;\n#endif\n\nvec3 cubeMapProject(vec3 nrdir) {\n\n    #if LIT_CUBEMAP_PROJECTION == NONE\n        return cubeMapRotate(nrdir);\n    #endif\n\n    #if LIT_CUBEMAP_PROJECTION == BOX\n\n        nrdir = cubeMapRotate(nrdir);\n\n        vec3 rbmax = (envBoxMax - vPositionW) / nrdir;\n        vec3 rbmin = (envBoxMin - vPositionW) / nrdir;\n\n        vec3 rbminmax;\n        rbminmax.x = nrdir.x>0.0? rbmax.x : rbmin.x;\n        rbminmax.y = nrdir.y>0.0? rbmax.y : rbmin.y;\n        rbminmax.z = nrdir.z>0.0? rbmax.z : rbmin.z;\n\n        float fa = min(min(rbminmax.x, rbminmax.y), rbminmax.z);\n\n        vec3 posonbox = vPositionW + nrdir * fa;\n        vec3 envBoxPos = (envBoxMin + envBoxMax) * 0.5;\n        return normalize(posonbox - envBoxPos);\n\n    #endif\n}\n";
export default _default;