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Im Hintergrund läuft eine Planetensimulation, geschrieben in JavaScript und Three.js.
Die zu sehenden Texturen stammen von:
https://www.solarsystemscope.com/textures/
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49 lines
867 B
49 lines
867 B
/** |
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* Vignette shader |
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* based on PaintEffect postprocess from ro.me |
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* http://code.google.com/p/3-dreams-of-black/source/browse/deploy/js/effects/PaintEffect.js |
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*/ |
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const VignetteShader = { |
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uniforms: { |
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'tDiffuse': { value: null }, |
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'offset': { value: 1.0 }, |
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'darkness': { value: 1.0 } |
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}, |
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vertexShader: /* glsl */` |
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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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fragmentShader: /* glsl */` |
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uniform float offset; |
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uniform float darkness; |
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uniform sampler2D tDiffuse; |
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varying vec2 vUv; |
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void main() { |
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// Eskil's vignette |
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vec4 texel = texture2D( tDiffuse, vUv ); |
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vec2 uv = ( vUv - vec2( 0.5 ) ) * vec2( offset ); |
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gl_FragColor = vec4( mix( texel.rgb, vec3( 1.0 - darkness ), dot( uv, uv ) ), texel.a ); |
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}` |
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}; |
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export { VignetteShader };
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