Spaces:
Running
Running
File size: 1,653 Bytes
6cd9596 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 |
/**
* @author alteredq / http://alteredqualia.com/
*
* Simple fake tilt-shift effect, modulating two pass Gaussian blur (see above) by vertical position
*
* - 9 samples per pass
* - standard deviation 2.7
* - "h" and "v" parameters should be set to "1 / width" and "1 / height"
* - "r" parameter control where "focused" horizontal line lies
*/
THREE.HorizontalTiltShiftShader = {
uniforms: {
"tDiffuse": { value: null },
"h": { value: 1.0 / 512.0 },
"r": { value: 0.35 }
},
vertexShader: [
"varying vec2 vUv;",
"void main() {",
"vUv = uv;",
"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
"}"
].join( "\n" ),
fragmentShader: [
"uniform sampler2D tDiffuse;",
"uniform float h;",
"uniform float r;",
"varying vec2 vUv;",
"void main() {",
"vec4 sum = vec4( 0.0 );",
"float hh = h * abs( r - vUv.y );",
"sum += texture2D( tDiffuse, vec2( vUv.x - 4.0 * hh, vUv.y ) ) * 0.051;",
"sum += texture2D( tDiffuse, vec2( vUv.x - 3.0 * hh, vUv.y ) ) * 0.0918;",
"sum += texture2D( tDiffuse, vec2( vUv.x - 2.0 * hh, vUv.y ) ) * 0.12245;",
"sum += texture2D( tDiffuse, vec2( vUv.x - 1.0 * hh, vUv.y ) ) * 0.1531;",
"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y ) ) * 0.1633;",
"sum += texture2D( tDiffuse, vec2( vUv.x + 1.0 * hh, vUv.y ) ) * 0.1531;",
"sum += texture2D( tDiffuse, vec2( vUv.x + 2.0 * hh, vUv.y ) ) * 0.12245;",
"sum += texture2D( tDiffuse, vec2( vUv.x + 3.0 * hh, vUv.y ) ) * 0.0918;",
"sum += texture2D( tDiffuse, vec2( vUv.x + 4.0 * hh, vUv.y ) ) * 0.051;",
"gl_FragColor = sum;",
"}"
].join( "\n" )
};
|