webgl_test_memory.html 2.0 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js - webgl</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. <style>
  9. body {
  10. background-color: #fff;
  11. }
  12. </style>
  13. </head>
  14. <body>
  15. <script src="../build/three.js"></script>
  16. <script>
  17. var container;
  18. var camera, scene, renderer;
  19. init();
  20. animate();
  21. function init() {
  22. container = document.createElement( 'div' );
  23. document.body.appendChild( container );
  24. camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 10000 );
  25. camera.position.z = 200;
  26. scene = new THREE.Scene();
  27. scene.background = new THREE.Color( 0xffffff );
  28. renderer = new THREE.WebGLRenderer();
  29. renderer.setPixelRatio( window.devicePixelRatio );
  30. renderer.setSize( window.innerWidth, window.innerHeight );
  31. container.appendChild( renderer.domElement );
  32. }
  33. function createImage() {
  34. var canvas = document.createElement( 'canvas' );
  35. canvas.width = 256;
  36. canvas.height = 256;
  37. var context = canvas.getContext( '2d' );
  38. context.fillStyle = 'rgb(' + Math.floor( Math.random() * 256 ) + ',' + Math.floor( Math.random() * 256 ) + ',' + Math.floor( Math.random() * 256 ) + ')';
  39. context.fillRect( 0, 0, 256, 256 );
  40. return canvas;
  41. }
  42. //
  43. function animate() {
  44. requestAnimationFrame( animate );
  45. render();
  46. }
  47. function render() {
  48. var geometry = new THREE.SphereBufferGeometry( 50, Math.random() * 64, Math.random() * 32 );
  49. var texture = new THREE.CanvasTexture( createImage() );
  50. var material = new THREE.MeshBasicMaterial( { map: texture, wireframe: true } );
  51. var mesh = new THREE.Mesh( geometry, material );
  52. scene.add( mesh );
  53. renderer.render( scene, camera );
  54. scene.remove( mesh );
  55. // clean up
  56. geometry.dispose();
  57. material.dispose();
  58. texture.dispose();
  59. }
  60. </script>
  61. </body>
  62. </html>