playcanvas/build/playcanvas/src/scene/shader-lib/wgsl/chunks/render-pass/frag/compose/compose-grading.d.ts

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

declare const _default: "\n    #ifdef GRADING\n        uniform brightnessContrastSaturation: vec3f;\n        uniform tint: vec3f;\n\n        // for all parameters, 1.0 is the no-change value\n        fn colorGradingHDR(color: vec3f, brt: f32, sat: f32, con: f32) -> vec3f {\n            // tint\n            var colorOut = color * uniform.tint;\n\n            // brightness\n            colorOut = colorOut * brt;\n\n            // saturation\n            let grey = dot(colorOut, vec3f(0.3, 0.59, 0.11));\n            let normalizedGrey = grey / max(1.0, max(colorOut.r, max(colorOut.g, colorOut.b)));    // Normalize luminance in HDR to preserve intensity\n            colorOut = mix(vec3f(normalizedGrey), colorOut, sat);\n\n            // contrast\n            return mix(vec3f(0.5), colorOut, con);\n        }\n\n        fn applyGrading(color: vec3f) -> vec3f {\n            return colorGradingHDR(color, \n                uniform.brightnessContrastSaturation.x, \n                uniform.brightnessContrastSaturation.z, \n                uniform.brightnessContrastSaturation.y);\n        }\n    #endif\n";
export default _default;