declare const _default: "\n    #define LIT_SKYBOX_INTENSITY\n\n    #include \"envProcPS\"\n    #include \"gammaPS\"\n    #include \"tonemappingPS\"\n\n    #ifdef PREPASS_PASS\n        varying vLinearDepth: f32;\n        #include \"floatAsUintPS\"\n    #endif\n\n    // Varying and uniform declarations\n    varying vViewDir : vec3f;\n    uniform skyboxHighlightMultiplier : f32;\n\n    #if defined(SKY_FISHEYE) && !defined(SKYMESH)\n        uniform fisheye_k : f32;\n        uniform fisheye_invK : f32;\n        uniform fisheye_projMat00 : f32;\n        uniform fisheye_projMat11 : f32;\n        uniform matrix_view : mat4x4f;\n        uniform cubeMapRotationMatrix : mat3x3f;\n        varying vClipXYW : vec3f;\n    #endif\n\n    #ifdef SKY_CUBEMAP\n\n        var texture_cubeMap : texture_cube<f32>;\n        var texture_cubeMap_sampler : sampler;\n\n        #ifdef SKYMESH\n            varying vWorldPos : vec3f;\n            uniform cubeMapRotationMatrix : mat3x3f;\n            uniform projectedSkydomeCenter : vec3f;\n        #endif\n\n    #else // env-atlas\n\n        #include \"sphericalPS\"\n        #include \"envAtlasPS\"\n\n        var texture_envAtlas : texture_2d<f32>;\n        var texture_envAtlas_sampler : sampler;\n\n        uniform mipLevel : f32;\n\n    #endif\n\n    @fragment\n    fn fragmentMain(input : FragmentInput) -> FragmentOutput {\n\n        var output: FragmentOutput;\n\n        #ifdef PREPASS_PASS\n\n            // output linear depth during prepass\n            output.color = float2vec4(vLinearDepth);\n\n        #else\n\n            var linear : vec3f;\n            var dir : vec3f;\n\n            // --- compute view direction ---\n\n            #if defined(SKY_FISHEYE) && !defined(SKYMESH)\n\n                let ndc : vec2f = input.vClipXYW.xy / input.vClipXYW.z;\n                let px : f32 = ndc.x / uniform.fisheye_projMat00;\n                let py : f32 = ndc.y / uniform.fisheye_projMat11;\n                let r : f32 = sqrt(px * px + py * py);\n                let theta : f32 = uniform.fisheye_k * atan(r * uniform.fisheye_invK);\n                let sinT : f32 = sin(theta);\n                let cosT : f32 = cos(theta);\n                var camDir : vec3f;\n                if (r > 1e-6) {\n                    camDir = vec3f(px / r * sinT, py / r * sinT, -cosT);\n                } else {\n                    camDir = vec3f(0.0, 0.0, -1.0);\n                }\n                let viewMat3 : mat3x3f = mat3x3f(\n                    uniform.matrix_view[0].xyz,\n                    uniform.matrix_view[1].xyz,\n                    uniform.matrix_view[2].xyz\n                );\n                dir = transpose(viewMat3) * camDir;\n                dir = dir * uniform.cubeMapRotationMatrix;\n\n            #elif defined(SKY_CUBEMAP) && defined(SKYMESH)\n\n                // get vector from world space pos to tripod origin\n                var envDir : vec3f = normalize(input.vWorldPos - uniform.projectedSkydomeCenter);\n                dir = envDir * uniform.cubeMapRotationMatrix;\n\n            #else\n\n                dir = input.vViewDir;\n\n            #endif\n\n            // --- sample environment ---\n\n            #ifdef SKY_CUBEMAP\n\n                dir.x *= -1.0;\n                linear = {SKYBOX_DECODE_FNC}(textureSample(texture_cubeMap, texture_cubeMap_sampler, dir));\n\n            #else // env-atlas\n\n                dir *= vec3f(-1.0, 1.0, 1.0);\n                let uv : vec2f = toSphericalUv(normalize(dir));\n                linear = {SKYBOX_DECODE_FNC}(textureSample(texture_envAtlas, texture_envAtlas_sampler, mapRoughnessUv(uv, uniform.mipLevel)));\n\n            #endif\n\n            // our HDR encodes values up to 64, so allow extra brightness for the clipped values\n            if (any(linear >= vec3f(64.0))) {\n                linear *= uniform.skyboxHighlightMultiplier;\n            }\n            \n            output.color = vec4f(gammaCorrectOutput(toneMap(processEnvironment(linear))), 1.0);\n\n        #endif\n\n        return output;\n    }\n";
export default _default;