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webgl_effects_parallaxbarrier.html 4.1 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - effects - parallax barrier</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:#777;
  10. padding:0;
  11. margin:0;
  12. font-weight: bold;
  13. overflow:hidden;
  14. }
  15. #info {
  16. position: absolute;
  17. top: 0px; width: 100%;
  18. color: #ffffff;
  19. padding: 5px;
  20. font-family:Monospace;
  21. font-size:13px;
  22. text-align:center;
  23. z-index:1000;
  24. }
  25. a {
  26. color: #ffffff;
  27. }
  28. #webglmessage a { color:#da0 }
  29. </style>
  30. </head>
  31. <body>
  32. <div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - effects - parallax barrier. skybox by <a href="http://ict.debevec.org/~debevec/" target="_blank" rel="noopener">Paul Debevec</a></div>
  33. <script src="../build/three.js"></script>
  34. <script src="js/effects/ParallaxBarrierEffect.js"></script>
  35. <script src="js/WebGL.js"></script>
  36. <script>
  37. if ( WEBGL.isWebGLAvailable() === false ) {
  38. document.body.appendChild( WEBGL.getWebGLErrorMessage() );
  39. }
  40. var container;
  41. var camera, scene, renderer, effect;
  42. var mesh, lightMesh, geometry;
  43. var spheres = [];
  44. var directionalLight, pointLight;
  45. var mouseX = 0;
  46. var mouseY = 0;
  47. var windowHalfX = window.innerWidth / 2;
  48. var windowHalfY = window.innerHeight / 2;
  49. document.addEventListener( 'mousemove', onDocumentMouseMove, false );
  50. init();
  51. animate();
  52. function init() {
  53. container = document.createElement( 'div' );
  54. document.body.appendChild( container );
  55. camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.01, 100 );
  56. camera.position.z = 3;
  57. camera.focalLength = 3;
  58. var path = "textures/cube/pisa/";
  59. var format = '.png';
  60. var urls = [
  61. path + 'px' + format, path + 'nx' + format,
  62. path + 'py' + format, path + 'ny' + format,
  63. path + 'pz' + format, path + 'nz' + format
  64. ];
  65. var textureCube = new THREE.CubeTextureLoader().load( urls );
  66. scene = new THREE.Scene();
  67. scene.background = textureCube;
  68. var geometry = new THREE.SphereBufferGeometry( 0.1, 32, 16 );
  69. var material = new THREE.MeshBasicMaterial( { color: 0xffffff, envMap: textureCube } );
  70. for ( var i = 0; i < 500; i ++ ) {
  71. var mesh = new THREE.Mesh( geometry, material );
  72. mesh.position.x = Math.random() * 10 - 5;
  73. mesh.position.y = Math.random() * 10 - 5;
  74. mesh.position.z = Math.random() * 10 - 5;
  75. mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 3 + 1;
  76. scene.add( mesh );
  77. spheres.push( mesh );
  78. }
  79. //
  80. renderer = new THREE.WebGLRenderer();
  81. renderer.setPixelRatio( window.devicePixelRatio );
  82. container.appendChild( renderer.domElement );
  83. var width = window.innerWidth || 2;
  84. var height = window.innerHeight || 2;
  85. effect = new THREE.ParallaxBarrierEffect( renderer );
  86. effect.setSize( width, height );
  87. //
  88. window.addEventListener( 'resize', onWindowResize, false );
  89. }
  90. function onWindowResize() {
  91. windowHalfX = window.innerWidth / 2;
  92. windowHalfY = window.innerHeight / 2;
  93. camera.aspect = window.innerWidth / window.innerHeight;
  94. camera.updateProjectionMatrix();
  95. effect.setSize( window.innerWidth, window.innerHeight );
  96. }
  97. function onDocumentMouseMove(event) {
  98. mouseX = ( event.clientX - windowHalfX ) / 100;
  99. mouseY = ( event.clientY - windowHalfY ) / 100;
  100. }
  101. //
  102. function animate() {
  103. requestAnimationFrame( animate );
  104. render();
  105. }
  106. function render() {
  107. var timer = 0.0001 * Date.now();
  108. camera.position.x += ( mouseX - camera.position.x ) * .05;
  109. camera.position.y += ( - mouseY - camera.position.y ) * .05;
  110. camera.lookAt( scene.position );
  111. for ( var i = 0, il = spheres.length; i < il; i ++ ) {
  112. var sphere = spheres[ i ];
  113. sphere.position.x = 5 * Math.cos( timer + i );
  114. sphere.position.y = 5 * Math.sin( timer + i * 1.1 );
  115. }
  116. effect.render( scene, camera );
  117. }
  118. </script>
  119. </body>
  120. </html>