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three

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JavaScript 3D library

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console.warn( "THREE.DotScreenShader: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/#manual/en/introduction/Installation." ); /** * Dot screen shader * based on glfx.js sepia shader * https://github.com/evanw/glfx.js */ THREE.DotScreenShader = { uniforms: { "tDiffuse": { value: null }, "tSize": { value: new THREE.Vector2( 256, 256 ) }, "center": { value: new THREE.Vector2( 0.5, 0.5 ) }, "angle": { value: 1.57 }, "scale": { value: 1.0 } }, vertexShader: [ "varying vec2 vUv;", "void main() {", " vUv = uv;", " gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );", "}" ].join( "\n" ), fragmentShader: [ "uniform vec2 center;", "uniform float angle;", "uniform float scale;", "uniform vec2 tSize;", "uniform sampler2D tDiffuse;", "varying vec2 vUv;", "float pattern() {", " float s = sin( angle ), c = cos( angle );", " vec2 tex = vUv * tSize - center;", " vec2 point = vec2( c * tex.x - s * tex.y, s * tex.x + c * tex.y ) * scale;", " return ( sin( point.x ) * sin( point.y ) ) * 4.0;", "}", "void main() {", " vec4 color = texture2D( tDiffuse, vUv );", " float average = ( color.r + color.g + color.b ) / 3.0;", " gl_FragColor = vec4( vec3( average * 10.0 - 5.0 + pattern() ), color.a );", "}" ].join( "\n" ) };