canvas_geometry_panorama_fisheye.html 5.6 KB

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  1. <!doctype html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js canvas - panorama fisheye demo</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-color: rgb(200,200,200);
  10. margin: 0px;
  11. overflow: hidden;
  12. }
  13. #info {
  14. position: absolute;
  15. top: 0px; width: 100%;
  16. color: #ffffff;
  17. padding: 5px;
  18. font-family:Monospace;
  19. font-size:13px;
  20. font-weight: bold;
  21. text-align:center;
  22. }
  23. a {
  24. color: #ffffff;
  25. }
  26. </style>
  27. </head>
  28. <body>
  29. <div id="container"></div>
  30. <div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - panorama fisheye demo. cubemap by <a href="http://www.zfight.com/" target="_blank">Jochum Skoglund</a>. (mousewheel: change fov)</div>
  31. <script src="../build/Three.js"></script>
  32. <script>
  33. var camera, scene, renderer;
  34. var texture_placeholder,
  35. isUserInteracting = false,
  36. onMouseDownMouseX = 0, onMouseDownMouseY = 0,
  37. lon = 90, onMouseDownLon = 0,
  38. lat = 0, onMouseDownLat = 0,
  39. phi = 0, theta = 0,
  40. target = new THREE.Vector3();
  41. init();
  42. function init() {
  43. var container, mesh;
  44. container = document.getElementById( 'container' );
  45. camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 1100 );
  46. scene = new THREE.Scene();
  47. texture_placeholder = document.createElement( 'canvas' );
  48. texture_placeholder.width = 128;
  49. texture_placeholder.height = 128;
  50. var context = texture_placeholder.getContext( '2d' );
  51. context.fillStyle = 'rgb( 200, 200, 200 )';
  52. context.fillRect( 0, 0, texture_placeholder.width, texture_placeholder.height );
  53. var materials = [
  54. loadTexture( 'textures/cube/skybox/px.jpg' ), // right
  55. loadTexture( 'textures/cube/skybox/nx.jpg' ), // left
  56. loadTexture( 'textures/cube/skybox/py.jpg' ), // top
  57. loadTexture( 'textures/cube/skybox/ny.jpg' ), // bottom
  58. loadTexture( 'textures/cube/skybox/pz.jpg' ), // back
  59. loadTexture( 'textures/cube/skybox/nz.jpg' ) // front
  60. ];
  61. mesh = new THREE.Mesh( new THREE.CubeGeometry( 300, 300, 300, 7, 7, 7, materials, true ), new THREE.MeshFaceMaterial() );
  62. mesh.overdraw = true;
  63. scene.add( mesh );
  64. for ( var i = 0, l = mesh.geometry.vertices.length; i < l; i ++ ) {
  65. var vertex = mesh.geometry.vertices[ i ];
  66. vertex.position.normalize();
  67. vertex.position.multiplyScalar( 550 );
  68. }
  69. renderer = new THREE.CanvasRenderer();
  70. renderer.setSize( window.innerWidth, window.innerHeight );
  71. container.appendChild( renderer.domElement );
  72. document.addEventListener( 'mousedown', onDocumentMouseDown, false );
  73. document.addEventListener( 'mousemove', onDocumentMouseMove, false );
  74. document.addEventListener( 'mouseup', onDocumentMouseUp, false );
  75. document.addEventListener( 'mousewheel', onDocumentMouseWheel, false );
  76. document.addEventListener( 'DOMMouseScroll', onDocumentMouseWheel, false);
  77. document.addEventListener( 'touchstart', onDocumentTouchStart, false );
  78. document.addEventListener( 'touchmove', onDocumentTouchMove, false );
  79. }
  80. function loadTexture( path ) {
  81. var texture = new THREE.Texture( texture_placeholder );
  82. var material = new THREE.MeshBasicMaterial( { map: texture } );
  83. var image = new Image();
  84. image.onload = function () {
  85. texture.needsUpdate = true;
  86. material.map.image = this;
  87. render();
  88. };
  89. image.src = path;
  90. return material;
  91. }
  92. function onDocumentMouseDown( event ) {
  93. event.preventDefault();
  94. isUserInteracting = true;
  95. onPointerDownPointerX = event.clientX;
  96. onPointerDownPointerY = event.clientY;
  97. onPointerDownLon = lon;
  98. onPointerDownLat = lat;
  99. }
  100. function onDocumentMouseMove( event ) {
  101. if ( isUserInteracting ) {
  102. lon = ( onPointerDownPointerX - event.clientX ) * 0.1 + onPointerDownLon;
  103. lat = ( event.clientY - onPointerDownPointerY ) * 0.1 + onPointerDownLat;
  104. render();
  105. }
  106. }
  107. function onDocumentMouseUp( event ) {
  108. isUserInteracting = false;
  109. render();
  110. }
  111. function onDocumentMouseWheel( event ) {
  112. // WebKit
  113. if ( event.wheelDeltaY ) {
  114. camera.fov -= event.wheelDeltaY * 0.05;
  115. // Opera / Explorer 9
  116. } else if ( event.wheelDelta ) {
  117. camera.fov -= event.wheelDelta * 0.05;
  118. // Firefox
  119. } else if ( event.detail ) {
  120. camera.fov -= event.detail * 0.05;
  121. }
  122. camera.updateProjectionMatrix();
  123. render();
  124. }
  125. function onDocumentTouchStart( event ) {
  126. if ( event.touches.length == 1 ) {
  127. event.preventDefault();
  128. onPointerDownPointerX = event.touches[ 0 ].pageX;
  129. onPointerDownPointerY = event.touches[ 0 ].pageY;
  130. onPointerDownLon = lon;
  131. onPointerDownLat = lat;
  132. }
  133. }
  134. function onDocumentTouchMove( event ) {
  135. if ( event.touches.length == 1 ) {
  136. event.preventDefault();
  137. lon = ( onPointerDownPointerX - event.touches[0].pageX ) * 0.1 + onPointerDownLon;
  138. lat = ( event.touches[0].pageY - onPointerDownPointerY ) * 0.1 + onPointerDownLat;
  139. render();
  140. }
  141. }
  142. function render() {
  143. lat = Math.max( - 85, Math.min( 85, lat ) );
  144. phi = ( 90 - lat ) * Math.PI / 180;
  145. theta = lon * Math.PI / 180;
  146. target.x = 500 * Math.sin( phi ) * Math.cos( theta );
  147. target.y = 500 * Math.cos( phi );
  148. target.z = 500 * Math.sin( phi ) * Math.sin( theta );
  149. camera.position.x = - target.x;
  150. camera.position.y = - target.y;
  151. camera.position.z = - target.z;
  152. camera.lookAt( target );
  153. renderer.render( scene, camera );
  154. }
  155. </script>
  156. </body>
  157. </html>