webgl_lensflares.html 5.7 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - lensflares</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:#000;
  10. padding:0;
  11. margin:0;
  12. font-weight: bold;
  13. overflow:hidden;
  14. }
  15. #info {
  16. position: absolute;
  17. top: 10px; width: 100%;
  18. color: #ffffff;
  19. padding: 5px;
  20. font-family: Monospace;
  21. font-size: 13px;
  22. text-align: center;
  23. z-index:100;
  24. }
  25. a {
  26. color: orange;
  27. text-decoration: none;
  28. }
  29. a:hover {
  30. color: #0080ff;
  31. }
  32. </style>
  33. </head>
  34. <body>
  35. <div id="info">
  36. <a href="http://threejs.org" target="_blank">three.js</a> - lensflares -
  37. textures from <a href="http://ro.me">ro.me</a> - fly with WASD/RF/QE + mouse
  38. </div>
  39. <script src="../build/three.js"></script>
  40. <script src="js/controls/FlyControls.js"></script>
  41. <script src="js/libs/stats.min.js"></script>
  42. <script>
  43. var container, stats;
  44. var camera, scene, renderer;
  45. var clock = new THREE.Clock();
  46. init();
  47. animate();
  48. function init() {
  49. container = document.createElement( 'div' );
  50. document.body.appendChild( container );
  51. // camera
  52. camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 15000 );
  53. camera.position.z = 250;
  54. controls = new THREE.FlyControls( camera );
  55. controls.movementSpeed = 2500;
  56. controls.domElement = container;
  57. controls.rollSpeed = Math.PI / 6;
  58. controls.autoForward = false;
  59. controls.dragToLook = false;
  60. // scene
  61. scene = new THREE.Scene();
  62. scene.fog = new THREE.Fog( 0x000000, 3500, 15000 );
  63. scene.fog.color.setHSL( 0.51, 0.4, 0.01 );
  64. // world
  65. var s = 250;
  66. var cube = new THREE.BoxGeometry( s, s, s );
  67. var material = new THREE.MeshPhongMaterial( { color: 0xffffff, specular: 0xffffff, shininess: 50 } );
  68. for ( var i = 0; i < 3000; i ++ ) {
  69. var mesh = new THREE.Mesh( cube, material );
  70. mesh.position.x = 8000 * ( 2.0 * Math.random() - 1.0 );
  71. mesh.position.y = 8000 * ( 2.0 * Math.random() - 1.0 );
  72. mesh.position.z = 8000 * ( 2.0 * Math.random() - 1.0 );
  73. mesh.rotation.x = Math.random() * Math.PI;
  74. mesh.rotation.y = Math.random() * Math.PI;
  75. mesh.rotation.z = Math.random() * Math.PI;
  76. mesh.matrixAutoUpdate = false;
  77. mesh.updateMatrix();
  78. scene.add( mesh );
  79. }
  80. // lights
  81. var dirLight = new THREE.DirectionalLight( 0xffffff, 0.05 );
  82. dirLight.position.set( 0, -1, 0 ).normalize();
  83. scene.add( dirLight );
  84. dirLight.color.setHSL( 0.1, 0.7, 0.5 );
  85. // lens flares
  86. var textureLoader = new THREE.TextureLoader();
  87. var textureFlare0 = textureLoader.load( "textures/lensflare/lensflare0.png" );
  88. var textureFlare2 = textureLoader.load( "textures/lensflare/lensflare2.png" );
  89. var textureFlare3 = textureLoader.load( "textures/lensflare/lensflare3.png" );
  90. addLight( 0.55, 0.9, 0.5, 5000, 0, -1000 );
  91. addLight( 0.08, 0.8, 0.5, 0, 0, -1000 );
  92. addLight( 0.995, 0.5, 0.9, 5000, 5000, -1000 );
  93. function addLight( h, s, l, x, y, z ) {
  94. var light = new THREE.PointLight( 0xffffff, 1.5, 2000 );
  95. light.color.setHSL( h, s, l );
  96. light.position.set( x, y, z );
  97. scene.add( light );
  98. var flareColor = new THREE.Color( 0xffffff );
  99. flareColor.setHSL( h, s, l + 0.5 );
  100. var lensFlare = new THREE.LensFlare( textureFlare0, 700, 0.0, THREE.AdditiveBlending, flareColor );
  101. lensFlare.add( textureFlare2, 512, 0.0, THREE.AdditiveBlending );
  102. lensFlare.add( textureFlare2, 512, 0.0, THREE.AdditiveBlending );
  103. lensFlare.add( textureFlare2, 512, 0.0, THREE.AdditiveBlending );
  104. lensFlare.add( textureFlare3, 60, 0.6, THREE.AdditiveBlending );
  105. lensFlare.add( textureFlare3, 70, 0.7, THREE.AdditiveBlending );
  106. lensFlare.add( textureFlare3, 120, 0.9, THREE.AdditiveBlending );
  107. lensFlare.add( textureFlare3, 70, 1.0, THREE.AdditiveBlending );
  108. lensFlare.customUpdateCallback = lensFlareUpdateCallback;
  109. lensFlare.position.copy( light.position );
  110. scene.add( lensFlare );
  111. }
  112. // renderer
  113. renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
  114. renderer.setClearColor( scene.fog.color );
  115. renderer.setPixelRatio( window.devicePixelRatio );
  116. renderer.setSize( window.innerWidth, window.innerHeight );
  117. container.appendChild( renderer.domElement );
  118. //
  119. renderer.gammaInput = true;
  120. renderer.gammaOutput = true;
  121. // stats
  122. stats = new Stats();
  123. container.appendChild( stats.dom );
  124. // events
  125. window.addEventListener( 'resize', onWindowResize, false );
  126. }
  127. //
  128. function lensFlareUpdateCallback( object ) {
  129. var f, fl = object.lensFlares.length;
  130. var flare;
  131. var vecX = -object.positionScreen.x * 2;
  132. var vecY = -object.positionScreen.y * 2;
  133. for( f = 0; f < fl; f++ ) {
  134. flare = object.lensFlares[ f ];
  135. flare.x = object.positionScreen.x + vecX * flare.distance;
  136. flare.y = object.positionScreen.y + vecY * flare.distance;
  137. flare.rotation = 0;
  138. }
  139. object.lensFlares[ 2 ].y += 0.025;
  140. object.lensFlares[ 3 ].rotation = object.positionScreen.x * 0.5 + THREE.Math.degToRad( 45 );
  141. }
  142. //
  143. function onWindowResize( event ) {
  144. renderer.setSize( window.innerWidth, window.innerHeight );
  145. camera.aspect = window.innerWidth / window.innerHeight;
  146. camera.updateProjectionMatrix();
  147. }
  148. //
  149. function animate() {
  150. requestAnimationFrame( animate );
  151. render();
  152. stats.update();
  153. }
  154. function render() {
  155. var delta = clock.getDelta();
  156. controls.update( delta );
  157. renderer.render( scene, camera );
  158. }
  159. </script>
  160. </body>
  161. </html>