mirror of
https://github.com/DanielnetoDotCom/YouPHPTube
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66 lines
1.2 KiB
JavaScript
66 lines
1.2 KiB
JavaScript
/**
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* Dot screen shader
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* based on glfx.js sepia shader
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* https://github.com/evanw/glfx.js
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*/
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THREE.DotScreenShader = {
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uniforms: {
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'tDiffuse': { value: null },
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'tSize': { value: new THREE.Vector2( 256, 256 ) },
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'center': { value: new THREE.Vector2( 0.5, 0.5 ) },
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'angle': { value: 1.57 },
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'scale': { value: 1.0 }
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},
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vertexShader: [
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'varying vec2 vUv;',
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'void main() {',
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' vUv = uv;',
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' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
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'}'
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].join( '\n' ),
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fragmentShader: [
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'uniform vec2 center;',
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'uniform float angle;',
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'uniform float scale;',
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'uniform vec2 tSize;',
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'uniform sampler2D tDiffuse;',
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'varying vec2 vUv;',
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'float pattern() {',
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' float s = sin( angle ), c = cos( angle );',
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' vec2 tex = vUv * tSize - center;',
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' vec2 point = vec2( c * tex.x - s * tex.y, s * tex.x + c * tex.y ) * scale;',
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' return ( sin( point.x ) * sin( point.y ) ) * 4.0;',
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'}',
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'void main() {',
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' vec4 color = texture2D( tDiffuse, vUv );',
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' float average = ( color.r + color.g + color.b ) / 3.0;',
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' gl_FragColor = vec4( vec3( average * 10.0 - 5.0 + pattern() ), color.a );',
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'}'
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].join( '\n' )
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};
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