canvas_geometry_hierarchy.html 3.2 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js canvas - geometry - hierarchy</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. background:#fff;
  10. padding:0;
  11. margin:0;
  12. font-weight: bold;
  13. overflow:hidden;
  14. }
  15. </style>
  16. </head>
  17. <body>
  18. <script src="../build/three.js"></script>
  19. <script src="js/renderers/Projector.js"></script>
  20. <script src="js/renderers/CanvasRenderer.js"></script>
  21. <script src="js/libs/stats.min.js"></script>
  22. <script>
  23. var container, stats;
  24. var camera, scene, renderer;
  25. var geometry, group;
  26. var mouseX = 0, mouseY = 0;
  27. var windowHalfX = window.innerWidth / 2;
  28. var windowHalfY = window.innerHeight / 2;
  29. document.addEventListener( 'mousemove', onDocumentMouseMove, false );
  30. init();
  31. animate();
  32. function init() {
  33. container = document.createElement( 'div' );
  34. document.body.appendChild( container );
  35. camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 10000 );
  36. camera.position.z = 500;
  37. scene = new THREE.Scene();
  38. var geometry = new THREE.BoxGeometry( 100, 100, 100 );
  39. var material = new THREE.MeshNormalMaterial( { overdraw: 0.5 } );
  40. group = new THREE.Group();
  41. for ( var i = 0; i < 200; i ++ ) {
  42. var mesh = new THREE.Mesh( geometry, material );
  43. mesh.position.x = Math.random() * 2000 - 1000;
  44. mesh.position.y = Math.random() * 2000 - 1000;
  45. mesh.position.z = Math.random() * 2000 - 1000;
  46. mesh.rotation.x = Math.random() * 2 * Math.PI;
  47. mesh.rotation.y = Math.random() * 2 * Math.PI;
  48. mesh.matrixAutoUpdate = false;
  49. mesh.updateMatrix();
  50. group.add( mesh );
  51. }
  52. scene.add( group );
  53. renderer = new THREE.CanvasRenderer();
  54. renderer.setClearColor( 0xffffff );
  55. renderer.setPixelRatio( window.devicePixelRatio );
  56. renderer.setSize( window.innerWidth, window.innerHeight );
  57. container.appendChild( renderer.domElement );
  58. stats = new Stats();
  59. container.appendChild( stats.dom );
  60. //
  61. window.addEventListener( 'resize', onWindowResize, false );
  62. }
  63. function onWindowResize() {
  64. windowHalfX = window.innerWidth / 2;
  65. windowHalfY = window.innerHeight / 2;
  66. camera.aspect = window.innerWidth / window.innerHeight;
  67. camera.updateProjectionMatrix();
  68. renderer.setSize( window.innerWidth, window.innerHeight );
  69. }
  70. function onDocumentMouseMove(event) {
  71. mouseX = ( event.clientX - windowHalfX ) * 10;
  72. mouseY = ( event.clientY - windowHalfY ) * 10;
  73. }
  74. //
  75. function animate() {
  76. requestAnimationFrame( animate );
  77. render();
  78. stats.update();
  79. }
  80. function render() {
  81. camera.position.x += ( mouseX - camera.position.x ) * .05;
  82. camera.position.y += ( - mouseY - camera.position.y ) * .05;
  83. camera.lookAt( scene.position );
  84. var currentSeconds = Date.now();
  85. group.rotation.x = Math.sin( currentSeconds * 0.0007 ) * 0.5;
  86. group.rotation.y = Math.sin( currentSeconds * 0.0003 ) * 0.5;
  87. group.rotation.z = Math.sin( currentSeconds * 0.0002 ) * 0.5;
  88. renderer.render( scene, camera );
  89. }
  90. </script>
  91. </body>
  92. </html>