mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-16 19:17:57 +01:00
66 lines
1.6 KiB
JavaScript
66 lines
1.6 KiB
JavaScript
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/**
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* @author alteredq / http://alteredqualia.com/
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*
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* Simple fake tilt-shift effect, modulating two pass Gaussian blur (see above) by vertical position
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*
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* - 9 samples per pass
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* - standard deviation 2.7
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* - "h" and "v" parameters should be set to "1 / width" and "1 / height"
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* - "r" parameter control where "focused" horizontal line lies
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*/
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THREE.HorizontalTiltShiftShader = {
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uniforms: {
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"tDiffuse": { type: "t", value: null },
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"h": { type: "f", value: 1.0 / 512.0 },
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"r": { type: "f", value: 0.35 }
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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 sampler2D tDiffuse;",
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"uniform float h;",
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"uniform float r;",
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"varying vec2 vUv;",
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"void main() {",
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"vec4 sum = vec4( 0.0 );",
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"float hh = h * abs( r - vUv.y );",
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"sum += texture2D( tDiffuse, vec2( vUv.x - 4.0 * hh, vUv.y ) ) * 0.051;",
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"sum += texture2D( tDiffuse, vec2( vUv.x - 3.0 * hh, vUv.y ) ) * 0.0918;",
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"sum += texture2D( tDiffuse, vec2( vUv.x - 2.0 * hh, vUv.y ) ) * 0.12245;",
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"sum += texture2D( tDiffuse, vec2( vUv.x - 1.0 * hh, vUv.y ) ) * 0.1531;",
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"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y ) ) * 0.1633;",
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"sum += texture2D( tDiffuse, vec2( vUv.x + 1.0 * hh, vUv.y ) ) * 0.1531;",
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"sum += texture2D( tDiffuse, vec2( vUv.x + 2.0 * hh, vUv.y ) ) * 0.12245;",
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"sum += texture2D( tDiffuse, vec2( vUv.x + 3.0 * hh, vUv.y ) ) * 0.0918;",
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"sum += texture2D( tDiffuse, vec2( vUv.x + 4.0 * hh, vUv.y ) ) * 0.051;",
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"gl_FragColor = sum;",
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"}"
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].join("\n")
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};
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