webgl_postprocessing_afterimage.html 2.7 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - postprocessing - afterimage</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. <link type="text/css" rel="stylesheet" href="main.css">
  8. </head>
  9. <body>
  10. <script src="../build/three.js"></script>
  11. <script src="js/shaders/CopyShader.js"></script>
  12. <script src="js/shaders/AfterimageShader.js"></script>
  13. <script src="js/postprocessing/EffectComposer.js"></script>
  14. <script src="js/postprocessing/RenderPass.js"></script>
  15. <script src="js/postprocessing/MaskPass.js"></script>
  16. <script src="js/postprocessing/ShaderPass.js"></script>
  17. <script src="js/postprocessing/AfterimagePass.js"></script>
  18. <script src="js/libs/dat.gui.min.js" type="text/javascript" charset="utf-8"></script>
  19. <script>
  20. var camera, scene, renderer, composer;
  21. var mesh;
  22. var afterimagePass;
  23. var params = {
  24. enable: true
  25. };
  26. init();
  27. createGUI();
  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. camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
  35. camera.position.z = 400;
  36. scene = new THREE.Scene();
  37. scene.fog = new THREE.Fog( 0x000000, 1, 1000 );
  38. var geometry = new THREE.BoxBufferGeometry( 150, 150, 150, 2, 2, 2 );
  39. var material = new THREE.MeshNormalMaterial();
  40. mesh = new THREE.Mesh( geometry, material );
  41. scene.add( mesh );
  42. // postprocessing
  43. composer = new THREE.EffectComposer( renderer );
  44. composer.addPass( new THREE.RenderPass( scene, camera ) );
  45. afterimagePass = new THREE.AfterimagePass();
  46. composer.addPass( afterimagePass );
  47. window.addEventListener( 'resize', onWindowResize, false );
  48. }
  49. function createGUI() {
  50. var gui = new dat.GUI( { name: 'Damp setting' } );
  51. gui.add( afterimagePass.uniforms[ "damp" ], 'value', 0, 1 ).step( 0.001 );
  52. gui.add( params, 'enable' );
  53. }
  54. function onWindowResize() {
  55. camera.aspect = window.innerWidth / window.innerHeight;
  56. camera.updateProjectionMatrix();
  57. renderer.setSize( window.innerWidth, window.innerHeight );
  58. composer.setSize( window.innerWidth, window.innerHeight );
  59. }
  60. function animate() {
  61. requestAnimationFrame( animate );
  62. mesh.rotation.x += 0.005;
  63. mesh.rotation.y += 0.01;
  64. if ( params.enable ) {
  65. composer.render();
  66. } else {
  67. renderer.render( scene, camera );
  68. }
  69. }
  70. </script>
  71. </body>
  72. </html>