three-stdlib/shaders/ToneMapShader.cjs.map

stand-alone library of threejs examples

{"version":3,"file":"ToneMapShader.cjs","sources":["../../src/shaders/ToneMapShader.ts"],"sourcesContent":["/**\n * Full-screen tone-mapping shader based on http://www.cis.rit.edu/people/faculty/ferwerda/publications/sig02_paper.pdf\n */\n\nexport const ToneMapShader = {\n  uniforms: {\n    tDiffuse: { value: null },\n    averageLuminance: { value: 1.0 },\n    luminanceMap: { value: null },\n    maxLuminance: { value: 16.0 },\n    minLuminance: { value: 0.01 },\n    middleGrey: { value: 0.6 },\n  },\n\n  vertexShader: [\n    'varying vec2 vUv;',\n\n    'void main() {',\n\n    '\tvUv = uv;',\n    '\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',\n\n    '}',\n  ].join('\\n'),\n\n  fragmentShader: [\n    '#include <common>',\n\n    'uniform sampler2D tDiffuse;',\n\n    'varying vec2 vUv;',\n\n    'uniform float middleGrey;',\n    'uniform float minLuminance;',\n    'uniform float maxLuminance;',\n    '#ifdef ADAPTED_LUMINANCE',\n    '\tuniform sampler2D luminanceMap;',\n    '#else',\n    '\tuniform float averageLuminance;',\n    '#endif',\n\n    'vec3 ToneMap( vec3 vColor ) {',\n    '\t#ifdef ADAPTED_LUMINANCE',\n    // Get the calculated average luminance\n    '\t\tfloat fLumAvg = texture2D(luminanceMap, vec2(0.5, 0.5)).r;',\n    '\t#else',\n    '\t\tfloat fLumAvg = averageLuminance;',\n    '\t#endif',\n\n    // Calculate the luminance of the current pixel\n    '\tfloat fLumPixel = linearToRelativeLuminance( vColor );',\n\n    // Apply the modified operator (Eq. 4)\n    '\tfloat fLumScaled = (fLumPixel * middleGrey) / max( minLuminance, fLumAvg );',\n\n    '\tfloat fLumCompressed = (fLumScaled * (1.0 + (fLumScaled / (maxLuminance * maxLuminance)))) / (1.0 + fLumScaled);',\n    '\treturn fLumCompressed * vColor;',\n    '}',\n\n    'void main() {',\n\n    '\tvec4 texel = texture2D( tDiffuse, vUv );',\n\n    '\tgl_FragColor = vec4( ToneMap( texel.xyz ), texel.w );',\n\n    '}',\n  ].join('\\n'),\n}\n"],"names":[],"mappings":";;AAIO,MAAM,gBAAgB;AAAA,EAC3B,UAAU;AAAA,IACR,UAAU,EAAE,OAAO,KAAK;AAAA,IACxB,kBAAkB,EAAE,OAAO,EAAI;AAAA,IAC/B,cAAc,EAAE,OAAO,KAAK;AAAA,IAC5B,cAAc,EAAE,OAAO,GAAK;AAAA,IAC5B,cAAc,EAAE,OAAO,KAAK;AAAA,IAC5B,YAAY,EAAE,OAAO,IAAI;AAAA,EAC3B;AAAA,EAEA,cAAc;AAAA,IACZ;AAAA,IAEA;AAAA,IAEA;AAAA,IACA;AAAA,IAEA;AAAA,EAAA,EACA,KAAK,IAAI;AAAA,EAEX,gBAAgB;AAAA,IACd;AAAA,IAEA;AAAA,IAEA;AAAA,IAEA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IAEA;AAAA,IACA;AAAA;AAAA,IAEA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA;AAAA,IAGA;AAAA;AAAA,IAGA;AAAA,IAEA;AAAA,IACA;AAAA,IACA;AAAA,IAEA;AAAA,IAEA;AAAA,IAEA;AAAA,IAEA;AAAA,EAAA,EACA,KAAK,IAAI;AACb;;"}