webgl_postprocessing.html 3.1 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - postprocessing</title>
  5. <meta charset="utf-8">
  6. <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
  7. <style>
  8. body {
  9. margin: 0px;
  10. background-color: #000000;
  11. overflow: hidden;
  12. }
  13. </style>
  14. </head>
  15. <body>
  16. <script src="../build/three.js"></script>
  17. <script src="js/shaders/CopyShader.js"></script>
  18. <script src="js/shaders/DotScreenShader.js"></script>
  19. <script src="js/shaders/RGBShiftShader.js"></script>
  20. <script src="js/postprocessing/EffectComposer.js"></script>
  21. <script src="js/postprocessing/RenderPass.js"></script>
  22. <script src="js/postprocessing/MaskPass.js"></script>
  23. <script src="js/postprocessing/ShaderPass.js"></script>
  24. <script>
  25. var camera, scene, renderer, composer;
  26. var object, light;
  27. init();
  28. animate();
  29. function init() {
  30. renderer = new THREE.WebGLRenderer();
  31. renderer.setPixelRatio( window.devicePixelRatio );
  32. renderer.setSize( window.innerWidth, window.innerHeight );
  33. document.body.appendChild( renderer.domElement );
  34. //
  35. camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
  36. camera.position.z = 400;
  37. scene = new THREE.Scene();
  38. scene.fog = new THREE.Fog( 0x000000, 1, 1000 );
  39. object = new THREE.Object3D();
  40. scene.add( object );
  41. var geometry = new THREE.SphereGeometry( 1, 4, 4 );
  42. var material = new THREE.MeshPhongMaterial( { color: 0xffffff, shading: THREE.FlatShading } );
  43. for ( var i = 0; i < 100; i ++ ) {
  44. var mesh = new THREE.Mesh( geometry, material );
  45. mesh.position.set( Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5 ).normalize();
  46. mesh.position.multiplyScalar( Math.random() * 400 );
  47. mesh.rotation.set( Math.random() * 2, Math.random() * 2, Math.random() * 2 );
  48. mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 50;
  49. object.add( mesh );
  50. }
  51. scene.add( new THREE.AmbientLight( 0x222222 ) );
  52. light = new THREE.DirectionalLight( 0xffffff );
  53. light.position.set( 1, 1, 1 );
  54. scene.add( light );
  55. // postprocessing
  56. composer = new THREE.EffectComposer( renderer );
  57. composer.addPass( new THREE.RenderPass( scene, camera ) );
  58. var effect = new THREE.ShaderPass( THREE.DotScreenShader );
  59. effect.uniforms[ 'scale' ].value = 4;
  60. composer.addPass( effect );
  61. var effect = new THREE.ShaderPass( THREE.RGBShiftShader );
  62. effect.uniforms[ 'amount' ].value = 0.0015;
  63. effect.renderToScreen = true;
  64. composer.addPass( effect );
  65. //
  66. window.addEventListener( 'resize', onWindowResize, false );
  67. }
  68. function onWindowResize() {
  69. camera.aspect = window.innerWidth / window.innerHeight;
  70. camera.updateProjectionMatrix();
  71. renderer.setSize( window.innerWidth, window.innerHeight );
  72. composer.setSize( window.innerWidth, window.innerHeight );
  73. }
  74. function animate() {
  75. requestAnimationFrame( animate );
  76. object.rotation.x += 0.005;
  77. object.rotation.y += 0.01;
  78. composer.render();
  79. }
  80. </script>
  81. </body>
  82. </html>