webgl_helpers.html 2.9 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - helpers</title>
  5. <meta charset="utf-8">
  6. <style>
  7. body {
  8. margin: 0px;
  9. background-color: #000000;
  10. overflow: hidden;
  11. }
  12. </style>
  13. </head>
  14. <body>
  15. <script src="../build/three.min.js"></script>
  16. <script>
  17. var scene, renderer;
  18. var camera, light;
  19. init();
  20. animate();
  21. function init() {
  22. renderer = new THREE.WebGLRenderer();
  23. renderer.setPixelRatio( window.devicePixelRatio );
  24. renderer.setSize( window.innerWidth, window.innerHeight );
  25. document.body.appendChild( renderer.domElement );
  26. //
  27. camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
  28. camera.position.z = 400;
  29. scene = new THREE.Scene();
  30. light = new THREE.PointLight();
  31. light.position.set( 200, 100, 150 );
  32. scene.add( light );
  33. scene.add( new THREE.PointLightHelper( light, 5 ) );
  34. var helper = new THREE.GridHelper( 200, 10 );
  35. helper.setColors( 0x0000ff, 0x808080 );
  36. helper.position.y = - 150;
  37. scene.add( helper );
  38. var loader = new THREE.JSONLoader();
  39. loader.load( 'obj/leeperrysmith/LeePerrySmith.js', function ( geometry, materials ) {
  40. var material = new THREE.MeshLambertMaterial();
  41. var group = new THREE.Group();
  42. group.scale.multiplyScalar( 50 );
  43. scene.add( group );
  44. var mesh = new THREE.Mesh( geometry, material );
  45. group.add( mesh );
  46. group.add( new THREE.FaceNormalsHelper( mesh, 0.1 ) );
  47. group.add( new THREE.VertexNormalsHelper( mesh, 0.1 ) );
  48. group.add( new THREE.BoxHelper( mesh ) );
  49. var wireframe = new THREE.WireframeGeometry( geometry );
  50. var line = new THREE.LineSegments( wireframe );
  51. line.material.depthTest = false;
  52. line.material.opacity = 0.25;
  53. line.material.transparent = true;
  54. line.position.x = 4;
  55. group.add( line );
  56. var edges = new THREE.EdgesGeometry( geometry );
  57. var line = new THREE.LineSegments( edges );
  58. line.material.depthTest = false;
  59. line.material.opacity = 0.25;
  60. line.material.transparent = true;
  61. line.position.x = -4;
  62. group.add( line );
  63. } );
  64. //
  65. window.addEventListener( 'resize', onWindowResize, false );
  66. }
  67. function onWindowResize() {
  68. camera.aspect = window.innerWidth / window.innerHeight;
  69. camera.updateProjectionMatrix();
  70. renderer.setSize( window.innerWidth, window.innerHeight );
  71. }
  72. function animate() {
  73. requestAnimationFrame( animate );
  74. var time = - performance.now() * 0.0003;
  75. camera.position.x = 400 * Math.cos( time );
  76. camera.position.z = 400 * Math.sin( time );
  77. camera.lookAt( scene.position );
  78. light.position.x = Math.sin( time * 1.7 ) * 300;
  79. light.position.y = Math.cos( time * 1.5 ) * 400;
  80. light.position.z = Math.cos( time * 1.3 ) * 300;
  81. renderer.render( scene, camera );
  82. }
  83. </script>
  84. </body>
  85. </html>