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webgl_helpers.html 3.3 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - helpers</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>
  18. var scene, renderer;
  19. var camera, light;
  20. var fnh, vnh;
  21. init();
  22. animate();
  23. function init() {
  24. renderer = new THREE.WebGLRenderer();
  25. renderer.setPixelRatio( window.devicePixelRatio );
  26. renderer.setSize( window.innerWidth, window.innerHeight );
  27. document.body.appendChild( renderer.domElement );
  28. //
  29. camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
  30. camera.position.z = 400;
  31. scene = new THREE.Scene();
  32. light = new THREE.PointLight();
  33. light.position.set( 200, 100, 150 );
  34. scene.add( light );
  35. scene.add( new THREE.PointLightHelper( light, 5 ) );
  36. var helper = new THREE.GridHelper( 200, 40, 0x0000ff, 0x808080 );
  37. helper.position.y = - 150;
  38. scene.add( helper );
  39. var loader = new THREE.JSONLoader();
  40. loader.load( 'obj/leeperrysmith/LeePerrySmith.js', function ( geometry, materials ) {
  41. var material = new THREE.MeshLambertMaterial();
  42. var group = new THREE.Group();
  43. group.scale.multiplyScalar( 50 );
  44. scene.add( group );
  45. // To make sure that the matrixWorld is up to date for the boxhelpers
  46. group.updateMatrixWorld(true);
  47. var mesh = new THREE.Mesh( geometry, material );
  48. group.add( mesh );
  49. fnh = new THREE.FaceNormalsHelper( mesh, 5 );
  50. scene.add( fnh );
  51. vnh = new THREE.VertexNormalsHelper( mesh, 5 );
  52. scene.add( vnh );
  53. scene.add( new THREE.BoxHelper( mesh ) );
  54. var wireframe = new THREE.WireframeGeometry( geometry );
  55. var line = new THREE.LineSegments( wireframe );
  56. line.material.depthTest = false;
  57. line.material.opacity = 0.25;
  58. line.material.transparent = true;
  59. line.position.x = 4;
  60. group.add( line );
  61. scene.add( new THREE.BoxHelper( line ) );
  62. var edges = new THREE.EdgesGeometry( geometry );
  63. var line = new THREE.LineSegments( edges );
  64. line.material.depthTest = false;
  65. line.material.opacity = 0.25;
  66. line.material.transparent = true;
  67. line.position.x = -4;
  68. group.add( line );
  69. scene.add( new THREE.BoxHelper( line ) );
  70. scene.add( new THREE.BoxHelper( group ) );
  71. scene.add( new THREE.BoxHelper( scene ) );
  72. } );
  73. //
  74. window.addEventListener( 'resize', onWindowResize, false );
  75. }
  76. function onWindowResize() {
  77. camera.aspect = window.innerWidth / window.innerHeight;
  78. camera.updateProjectionMatrix();
  79. renderer.setSize( window.innerWidth, window.innerHeight );
  80. }
  81. function animate() {
  82. requestAnimationFrame( animate );
  83. var time = - performance.now() * 0.0003;
  84. camera.position.x = 400 * Math.cos( time );
  85. camera.position.z = 400 * Math.sin( time );
  86. camera.lookAt( scene.position );
  87. light.position.x = Math.sin( time * 1.7 ) * 300;
  88. light.position.y = Math.cos( time * 1.5 ) * 400;
  89. light.position.z = Math.cos( time * 1.3 ) * 300;
  90. if ( fnh ) fnh.update();
  91. if ( vnh ) vnh.update();
  92. renderer.render( scene, camera );
  93. }
  94. </script>
  95. </body>
  96. </html>