{"version":3,"file":"VignetteShader.cjs","sources":["../../src/shaders/VignetteShader.ts"],"sourcesContent":["/**\n * Vignette shader\n * based on PaintEffect postprocess from ro.me\n * http://code.google.com/p/3-dreams-of-black/source/browse/deploy/js/effects/PaintEffect.js\n */\n\nexport const VignetteShader = {\n  uniforms: {\n    tDiffuse: { value: null },\n    offset: { value: 1.0 },\n    darkness: { 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 offset;',\n    'uniform float darkness;',\n\n    'uniform sampler2D tDiffuse;',\n\n    'varying vec2 vUv;',\n\n    'void main() {',\n\n    // Eskil's vignette\n\n    '\tvec4 texel = texture2D( tDiffuse, vUv );',\n    '\tvec2 uv = ( vUv - vec2( 0.5 ) ) * vec2( offset );',\n    '\tgl_FragColor = vec4( mix( texel.rgb, vec3( 1.0 - darkness ), dot( uv, uv ) ), texel.a );',\n\n    /*\n\t\t// alternative version from glfx.js\n\t\t// this one makes more \"dusty\" look (as opposed to \"burned\")\n\n\t\t\"\tvec4 color = texture2D( tDiffuse, vUv );\",\n\t\t\"\tfloat dist = distance( vUv, vec2( 0.5 ) );\",\n\t\t\"\tcolor.rgb *= smoothstep( 0.8, offset * 0.799, dist *( darkness + offset ) );\",\n\t\t\"\tgl_FragColor = color;\",\n\t\t*/\n\n    '}',\n  ].join('\\n'),\n}\n"],"names":[],"mappings":";;AAMO,MAAM,iBAAiB;AAAA,EAC5B,UAAU;AAAA,IACR,UAAU,EAAE,OAAO,KAAK;AAAA,IACxB,QAAQ,EAAE,OAAO,EAAI;AAAA,IACrB,UAAU,EAAE,OAAO,EAAI;AAAA,EACzB;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,IAEA;AAAA,IAEA;AAAA,IAEA;AAAA;AAAA,IAIA;AAAA,IACA;AAAA,IACA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,IAYA;AAAA,EAAA,EACA,KAAK,IAAI;AACb;;"}