playcanvas/build/playcanvas/src/scene/shader-lib/glsl/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 vec3 brightnessContrastSaturation;\n        uniform vec3 tint;\n\n        // for all parameters, 1.0 is the no-change value\n        vec3 colorGradingHDR(vec3 color, float brt, float sat, float con) {\n            // tint\n            color *= tint;\n\n            // brightness\n            color = color * brt;\n\n            // saturation\n            float grey = dot(color, vec3(0.3, 0.59, 0.11));\n            grey = grey / max(1.0, max(color.r, max(color.g, color.b)));    // Normalize luminance in HDR to preserve intensity\n            color = mix(vec3(grey), color, sat);\n\n            // contrast\n            return mix(vec3(0.5), color, con);\n        }\n\n        vec3 applyGrading(vec3 color) {\n            return colorGradingHDR(color, \n                brightnessContrastSaturation.x, \n                brightnessContrastSaturation.z, \n                brightnessContrastSaturation.y);\n        }\n    #endif\n";
export default _default;