three-stdlib/shaders/RGBShiftShader.cjs.map

stand-alone library of threejs examples

{"version":3,"file":"RGBShiftShader.cjs","sources":["../../src/shaders/RGBShiftShader.ts"],"sourcesContent":["/**\n * RGB Shift Shader\n * Shifts red and blue channels from center in opposite directions\n * Ported from http://kriss.cx/tom/2009/05/rgb-shift/\n * by Tom Butterworth / http://kriss.cx/tom/\n *\n * amount: shift distance (1 is width of input)\n * angle: shift angle in radians\n */\n\nexport const RGBShiftShader = {\n  uniforms: {\n    tDiffuse: { value: null },\n    amount: { value: 0.005 },\n    angle: { value: 0.0 },\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 sampler2D tDiffuse;',\n    'uniform float amount;',\n    'uniform float angle;',\n\n    'varying vec2 vUv;',\n\n    'void main() {',\n\n    '\tvec2 offset = amount * vec2( cos(angle), sin(angle));',\n    '\tvec4 cr = texture2D(tDiffuse, vUv + offset);',\n    '\tvec4 cga = texture2D(tDiffuse, vUv);',\n    '\tvec4 cb = texture2D(tDiffuse, vUv - offset);',\n    '\tgl_FragColor = vec4(cr.r, cga.g, cb.b, cga.a);',\n\n    '}',\n  ].join('\\n'),\n}\n"],"names":[],"mappings":";;AAUO,MAAM,iBAAiB;AAAA,EAC5B,UAAU;AAAA,IACR,UAAU,EAAE,OAAO,KAAK;AAAA,IACxB,QAAQ,EAAE,OAAO,KAAM;AAAA,IACvB,OAAO,EAAE,OAAO,EAAI;AAAA,EACtB;AAAA,EAEA,cAAc;AAAA,IACZ;AAAA,IAEA;AAAA,IAEA;AAAA,IACA;AAAA,IAEA;AAAA,EAAA,EACA,KAAK,IAAI;AAAA,EAEX,gBAAgB;AAAA,IACd;AAAA,IACA;AAAA,IACA;AAAA,IAEA;AAAA,IAEA;AAAA,IAEA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IACA;AAAA,IAEA;AAAA,EAAA,EACA,KAAK,IAAI;AACb;;"}