webgl_lensflares.html 6.2 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258
  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 type="text/css">
  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://github.com/mrdoob/three.js" 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.min.js"></script>
  40. <script src="js/Stats.js"></script>
  41. <script>
  42. var container, stats;
  43. var camera, scene, renderer;
  44. var clock = new THREE.Clock();
  45. var composer;
  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.setHSV( 0.51, 0.6, 0.025 );
  64. // world
  65. var s = 250;
  66. var cube = new THREE.CubeGeometry( s, s, s );
  67. var material = new THREE.MeshPhongMaterial( { ambient: 0x333333, color: 0xffffff, specular: 0xffffff, shininess: 50, perPixel: true } );
  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 ambient = new THREE.AmbientLight( 0xffffff );
  82. ambient.color.setHSV( 0.1, 0.5, 0.3 );
  83. scene.add( ambient );
  84. var dirLight = new THREE.DirectionalLight( 0xffffff, 0.125 );
  85. dirLight.position.set( 0, -1, 0 ).normalize();
  86. scene.add( dirLight );
  87. dirLight.color.setHSV( 0.1, 0.725, 0.9 );
  88. // lens flares
  89. var textureFlare0 = THREE.ImageUtils.loadTexture( "textures/lensflare/lensflare0.png" );
  90. var textureFlare2 = THREE.ImageUtils.loadTexture( "textures/lensflare/lensflare2.png" );
  91. var textureFlare3 = THREE.ImageUtils.loadTexture( "textures/lensflare/lensflare3.png" );
  92. addLight( 0.55, 0.825, 0.99, 5000, 0, -1000 );
  93. addLight( 0.08, 0.825, 0.99, 0, 0, -1000 );
  94. addLight( 0.995, 0.025, 0.99, 5000, 5000, -1000 );
  95. function addLight( h, s, v, x, y, z ) {
  96. var light = new THREE.PointLight( 0xffffff, 1.5, 4500 );
  97. light.position.set( x, y, z );
  98. scene.add( light );
  99. light.color.setHSV( h, s, v );
  100. var flareColor = new THREE.Color( 0xffffff );
  101. flareColor.copy( light.color );
  102. THREE.ColorUtils.adjustHSV( flareColor, 0, -0.5, 0.5 );
  103. var lensFlare = new THREE.LensFlare( textureFlare0, 700, 0.0, THREE.AdditiveBlending, flareColor );
  104. lensFlare.add( textureFlare2, 512, 0.0, THREE.AdditiveBlending );
  105. lensFlare.add( textureFlare2, 512, 0.0, THREE.AdditiveBlending );
  106. lensFlare.add( textureFlare2, 512, 0.0, THREE.AdditiveBlending );
  107. lensFlare.add( textureFlare3, 60, 0.6, THREE.AdditiveBlending );
  108. lensFlare.add( textureFlare3, 70, 0.7, THREE.AdditiveBlending );
  109. lensFlare.add( textureFlare3, 120, 0.9, THREE.AdditiveBlending );
  110. lensFlare.add( textureFlare3, 70, 1.0, THREE.AdditiveBlending );
  111. lensFlare.customUpdateCallback = lensFlareUpdateCallback;
  112. lensFlare.position = light.position;
  113. scene.add( lensFlare );
  114. }
  115. // renderer
  116. renderer = new THREE.WebGLRenderer( { antialias: true, maxLights: 8, alpha: true } );
  117. renderer.setSize( window.innerWidth, window.innerHeight );
  118. renderer.setClearColor( scene.fog.color, 1 );
  119. container.appendChild( renderer.domElement );
  120. //
  121. renderer.gammaInput = true;
  122. renderer.gammaOutput = true;
  123. renderer.physicallyBasedShading = true;
  124. // stats
  125. stats = new Stats();
  126. stats.domElement.style.position = 'absolute';
  127. stats.domElement.style.top = '0px';
  128. stats.domElement.style.zIndex = 100;
  129. container.appendChild( stats.domElement );
  130. stats.domElement.children[ 0 ].children[ 0 ].style.color = "#aaa";
  131. stats.domElement.children[ 0 ].style.background = "transparent";
  132. stats.domElement.children[ 0 ].children[ 1 ].style.display = "none";
  133. // events
  134. window.addEventListener( 'resize', onWindowResize, false );
  135. }
  136. //
  137. function lensFlareUpdateCallback( object ) {
  138. var f, fl = object.lensFlares.length;
  139. var flare;
  140. var vecX = -object.positionScreen.x * 2;
  141. var vecY = -object.positionScreen.y * 2;
  142. for( f = 0; f < fl; f++ ) {
  143. flare = object.lensFlares[ f ];
  144. flare.x = object.positionScreen.x + vecX * flare.distance;
  145. flare.y = object.positionScreen.y + vecY * flare.distance;
  146. flare.rotation = 0;
  147. }
  148. object.lensFlares[ 2 ].y += 0.025;
  149. object.lensFlares[ 3 ].rotation = object.positionScreen.x * 0.5 + 45 * Math.PI / 180;
  150. }
  151. //
  152. function onWindowResize( event ) {
  153. renderer.setSize( window.innerWidth, window.innerHeight );
  154. camera.aspect = window.innerWidth / window.innerHeight;
  155. camera.updateProjectionMatrix();
  156. }
  157. //
  158. function animate() {
  159. requestAnimationFrame( animate );
  160. render();
  161. stats.update();
  162. }
  163. function render() {
  164. var delta = clock.getDelta();
  165. controls.update( delta );
  166. renderer.render( scene, camera );
  167. }
  168. </script>
  169. </body>
  170. </html>