webgl_shaders_ocean.html 5.1 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - geometry - terrain</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. color: #000;
  10. font-family:Monospace;
  11. font-size:13px;
  12. margin: 0px;
  13. overflow: hidden;
  14. }
  15. #info {
  16. position: absolute;
  17. top: 0px; width: 100%;
  18. text-align:center;
  19. padding: 5px;
  20. }
  21. a {
  22. color: #a06851;
  23. }
  24. </style>
  25. </head>
  26. <body>
  27. <div id="info"><a href="http://threejs.org" target="_blank">three.js</a> - webgl ocean demo</div>
  28. <script src="../build/three.js"></script>
  29. <script src="js/controls/OrbitControls.js"></script>
  30. <script src="js/Mirror.js"></script>
  31. <script src="js/WaterShader.js"></script>
  32. <script src="js/Detector.js"></script>
  33. <script src="js/libs/stats.min.js"></script>
  34. <script>
  35. if ( ! Detector.webgl ) {
  36. Detector.addGetWebGLMessage();
  37. document.getElementById( 'container' ).innerHTML = "";
  38. }
  39. var container, stats;
  40. var camera, scene, renderer;
  41. var sphere;
  42. var parameters = {
  43. width: 2000,
  44. height: 2000,
  45. widthSegments: 250,
  46. heightSegments: 250,
  47. depth: 1500,
  48. param: 4,
  49. filterparam: 1
  50. };
  51. var waterNormals;
  52. init();
  53. animate();
  54. function init() {
  55. container = document.createElement( 'div' );
  56. document.body.appendChild( container );
  57. renderer = new THREE.WebGLRenderer();
  58. renderer.setPixelRatio( window.devicePixelRatio );
  59. renderer.setSize( window.innerWidth, window.innerHeight );
  60. container.appendChild( renderer.domElement );
  61. scene = new THREE.Scene();
  62. camera = new THREE.PerspectiveCamera( 55, window.innerWidth / window.innerHeight, 0.5, 3000000 );
  63. camera.position.set( 2000, 750, 2000 );
  64. controls = new THREE.OrbitControls( camera, renderer.domElement );
  65. controls.enablePan = false;
  66. controls.minDistance = 1000.0;
  67. controls.maxDistance = 5000.0;
  68. controls.maxPolarAngle = Math.PI * 0.495;
  69. controls.target.set( 0, 500, 0 );
  70. scene.add( new THREE.AmbientLight( 0x444444 ) );
  71. var light = new THREE.DirectionalLight( 0xffffbb, 1 );
  72. light.position.set( - 1, 1, - 1 );
  73. scene.add( light );
  74. waterNormals = new THREE.TextureLoader().load( 'textures/waternormals.jpg' );
  75. waterNormals.wrapS = waterNormals.wrapT = THREE.RepeatWrapping;
  76. water = new THREE.Water( renderer, camera, scene, {
  77. textureWidth: 512,
  78. textureHeight: 512,
  79. waterNormals: waterNormals,
  80. alpha: 1.0,
  81. sunDirection: light.position.clone().normalize(),
  82. sunColor: 0xffffff,
  83. waterColor: 0x001e0f,
  84. distortionScale: 50.0,
  85. } );
  86. mirrorMesh = new THREE.Mesh(
  87. new THREE.PlaneBufferGeometry( parameters.width * 500, parameters.height * 500 ),
  88. water.material
  89. );
  90. mirrorMesh.add( water );
  91. mirrorMesh.rotation.x = - Math.PI * 0.5;
  92. scene.add( mirrorMesh );
  93. // load skybox
  94. var cubeMap = new THREE.CubeTexture( [] );
  95. cubeMap.format = THREE.RGBFormat;
  96. var loader = new THREE.ImageLoader();
  97. loader.load( 'textures/skyboxsun25degtest.png', function ( image ) {
  98. var getSide = function ( x, y ) {
  99. var size = 1024;
  100. var canvas = document.createElement( 'canvas' );
  101. canvas.width = size;
  102. canvas.height = size;
  103. var context = canvas.getContext( '2d' );
  104. context.drawImage( image, - x * size, - y * size );
  105. return canvas;
  106. };
  107. cubeMap.images[ 0 ] = getSide( 2, 1 ); // px
  108. cubeMap.images[ 1 ] = getSide( 0, 1 ); // nx
  109. cubeMap.images[ 2 ] = getSide( 1, 0 ); // py
  110. cubeMap.images[ 3 ] = getSide( 1, 2 ); // ny
  111. cubeMap.images[ 4 ] = getSide( 1, 1 ); // pz
  112. cubeMap.images[ 5 ] = getSide( 3, 1 ); // nz
  113. cubeMap.needsUpdate = true;
  114. } );
  115. var cubeShader = THREE.ShaderLib[ 'cube' ];
  116. cubeShader.uniforms[ 'tCube' ].value = cubeMap;
  117. var skyBoxMaterial = new THREE.ShaderMaterial( {
  118. fragmentShader: cubeShader.fragmentShader,
  119. vertexShader: cubeShader.vertexShader,
  120. uniforms: cubeShader.uniforms,
  121. depthWrite: false,
  122. side: THREE.BackSide
  123. } );
  124. var skyBox = new THREE.Mesh(
  125. new THREE.BoxGeometry( 1000000, 1000000, 1000000 ),
  126. skyBoxMaterial
  127. );
  128. scene.add( skyBox );
  129. var geometry = new THREE.IcosahedronGeometry( 400, 4 );
  130. for ( var i = 0, j = geometry.faces.length; i < j; i ++ ) {
  131. geometry.faces[ i ].color.setHex( Math.random() * 0xffffff );
  132. }
  133. var material = new THREE.MeshPhongMaterial( {
  134. vertexColors: THREE.FaceColors,
  135. shininess: 100,
  136. envMap: cubeMap
  137. } );
  138. sphere = new THREE.Mesh( geometry, material );
  139. scene.add( sphere );
  140. }
  141. //
  142. function animate() {
  143. requestAnimationFrame( animate );
  144. render();
  145. }
  146. function render() {
  147. var time = performance.now() * 0.001;
  148. sphere.position.y = Math.sin( time ) * 500 + 250;
  149. sphere.rotation.x = time * 0.5;
  150. sphere.rotation.z = time * 0.51;
  151. water.material.uniforms.time.value += 1.0 / 60.0;
  152. controls.update();
  153. water.render();
  154. renderer.render( scene, camera );
  155. }
  156. </script>
  157. </body>
  158. </html>