playcanvas/build/playcanvas.dbg/src/scene/shader-lib/chunks/skybox/frag/skybox.js

PlayCanvas WebGL game engine

var skyboxPS = '\n    #define LIT_SKYBOX_INTENSITY\n\n    #include "envProcPS"\n    #include "gammaPS"\n    #include "tonemappingPS"\n\n    varying vec3 vViewDir;\n    uniform float skyboxHighlightMultiplier;\n\n    #ifdef SKY_CUBEMAP\n\n        uniform samplerCube texture_cubeMap;\n\n        #ifdef SKYMESH\n            varying vec3 vWorldPos;\n            uniform mat3 cubeMapRotationMatrix;\n            uniform vec3 projectedSkydomeCenter;\n        #endif\n\n    #else // env-atlas\n\n        #include "sphericalPS"\n        #include "envAtlasPS"\n\n        uniform sampler2D texture_envAtlas;\n        uniform float mipLevel;\n\n    #endif\n\n    void main(void) {\n\n        #ifdef SKY_CUBEMAP\n\n            #ifdef SKYMESH\n\n                // get vector from world space pos to tripod origin\n                vec3 envDir = normalize(vWorldPos - projectedSkydomeCenter);\n                vec3 dir = envDir * cubeMapRotationMatrix;\n\n            #else\n\n                vec3 dir = vViewDir;\n\n            #endif\n\n            dir.x *= -1.0;\n            vec3 linear = {SKYBOX_DECODE_FNC}(textureCube(texture_cubeMap, dir));\n\n        #else // env-atlas\n\n            vec3 dir = vViewDir * vec3(-1.0, 1.0, 1.0);\n            vec2 uv = toSphericalUv(normalize(dir));\n\n            vec3 linear = {SKYBOX_DECODE_FNC}(texture2D(texture_envAtlas, mapRoughnessUv(uv, mipLevel)));\n\n        #endif\n\n        // our HDR encodes values up to 64, so allow extra brightness for the clipped values\n        if (any(greaterThanEqual(linear, vec3(64.0)))) {\n            linear *= skyboxHighlightMultiplier;\n        }\n\n        gl_FragColor = vec4(gammaCorrectOutput(toneMap(processEnvironment(linear))), 1.0);\n    }\n';

export { skyboxPS as default };