{"version":3,"file":"SepiaShader.cjs","sources":["../../src/shaders/SepiaShader.ts"],"sourcesContent":["/**\n * Sepia tone shader\n * based on glfx.js sepia shader\n * https://github.com/evanw/glfx.js\n */\n\nexport const SepiaShader = {\n  uniforms: {\n    tDiffuse: { value: null },\n    amount: { value: 1.0 },\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    'uniform float amount;',\n\n    'uniform sampler2D tDiffuse;',\n\n    'varying vec2 vUv;',\n\n    'void main() {',\n\n    '\tvec4 color = texture2D( tDiffuse, vUv );',\n    '\tvec3 c = color.rgb;',\n\n    '\tcolor.r = dot( c, vec3( 1.0 - 0.607 * amount, 0.769 * amount, 0.189 * amount ) );',\n    '\tcolor.g = dot( c, vec3( 0.349 * amount, 1.0 - 0.314 * amount, 0.168 * amount ) );',\n    '\tcolor.b = dot( c, vec3( 0.272 * amount, 0.534 * amount, 1.0 - 0.869 * amount ) );',\n\n    '\tgl_FragColor = vec4( min( vec3( 1.0 ), color.rgb ), color.a );',\n\n    '}',\n  ].join('\\n'),\n}\n"],"names":[],"mappings":";;AAMO,MAAM,cAAc;AAAA,EACzB,UAAU;AAAA,IACR,UAAU,EAAE,OAAO,KAAK;AAAA,IACxB,QAAQ,EAAE,OAAO,EAAI;AAAA,EACvB;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,IAEA;AAAA,IACA;AAAA,IAEA;AAAA,IACA;AAAA,IACA;AAAA,IAEA;AAAA,IAEA;AAAA,EAAA,EACA,KAAK,IAAI;AACb;;"}