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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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59 lines
952 B
59 lines
952 B
( function () { |
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/** |
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* Mirror Shader |
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* Copies half the input to the other half |
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* |
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* side: side of input to mirror (0 = left, 1 = right, 2 = top, 3 = bottom) |
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*/ |
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const MirrorShader = { |
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uniforms: { |
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'tDiffuse': { |
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value: null |
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}, |
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'side': { |
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value: 1 |
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} |
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}, |
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vertexShader: |
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/* glsl */ |
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` |
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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: |
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/* glsl */ |
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` |
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uniform sampler2D tDiffuse; |
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uniform int side; |
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varying vec2 vUv; |
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void main() { |
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vec2 p = vUv; |
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if (side == 0){ |
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if (p.x > 0.5) p.x = 1.0 - p.x; |
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}else if (side == 1){ |
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if (p.x < 0.5) p.x = 1.0 - p.x; |
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}else if (side == 2){ |
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if (p.y < 0.5) p.y = 1.0 - p.y; |
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}else if (side == 3){ |
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if (p.y > 0.5) p.y = 1.0 - p.y; |
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} |
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vec4 color = texture2D(tDiffuse, p); |
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gl_FragColor = color; |
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}` |
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}; |
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THREE.MirrorShader = MirrorShader; |
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} )();
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