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@@ -1,274 +0,0 @@
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-<!DOCTYPE HTML>
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-<html lang="en">
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- <head>
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- <title>three.js - geometry - webgl terrain</title>
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- <meta charset="utf-8">
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- <style type="text/css">
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- body {
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- color: #61443e;
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- font-family:Monospace;
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- font-size:13px;
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- text-align:center;
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-
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- background-color: #efd1b5;
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- margin: 0px;
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- overflow: hidden;
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- }
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-
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- #info {
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- position: absolute;
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- top: 0px; width: 100%;
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- padding: 5px;
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- }
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-
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- a {
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-
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- color: #a06851;
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- }
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-
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- </style>
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- </head>
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- <body>
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-
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- <div id="container"><br /><br /><br /><br /><br />Generating world...</div>
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- <div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - webgl terrain demo<br />(left click: forward, right click: backward)</div>
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-
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- <script type="text/javascript" src="js/Stats.js"></script>
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- <script type="text/javascript" src="js/ImprovedNoise.js"></script>
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-
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- <script type="text/javascript" src="../build/Three.js"></script>
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- <script type="text/javascript" src="../src/renderers/WebGLRenderer2.js"></script>
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-
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- <script type="text/javascript" src="../src/extras/GeometryUtils.js"></script>
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- <script type="text/javascript" src="../src/extras/primitives/Plane.js"></script>
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-
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- <script type="text/javascript">
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-
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- var container, stats;
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-
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- var camera, scene, renderer;
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-
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- var mesh, texture;
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-
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- var worldWidth = 256, worldDepth = 256,
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- worldHalfWidth = worldWidth / 2, worldHalfDepth = worldDepth / 2;
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-
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- var mouseX = 0, mouseY = 0,
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- lat = 0, lon = 0, phy = 0, theta = 0;
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-
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- var direction = new THREE.Vector3(),
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- moveForward = false, moveBackward = false;
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-
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- var windowHalfX = window.innerWidth / 2;
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- var windowHalfY = window.innerHeight / 2;
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-
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-
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- init();
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- setInterval( loop, 1000 / 60 );
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-
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-
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- function init() {
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-
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- container = document.getElementById( 'container' );
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-
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- camera = new THREE.Camera( 60, window.innerWidth / window.innerHeight, 1, 750 );
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- camera.target.position.z = - 100;
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-
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- scene = new THREE.Scene();
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- scene.fog = new THREE.Fog( 0xefd1b5, 1, 750 );
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-
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- data = generateHeight( worldWidth, worldDepth );
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-
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- camera.position.y = data[ worldHalfWidth + worldHalfDepth * worldWidth ] * 10 + 500;
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- camera.target.position.y = camera.position.y;
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-
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- var geometry = new Plane( 7500, 7500, worldWidth - 1, worldDepth - 1 );
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-
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- for ( var i = 0, l = geometry.vertices.length; i < l; i ++ ) {
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-
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- geometry.vertices[ i ].position.z = data[ i ] * 10;
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-
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- }
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-
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- texture = new THREE.Texture( generateTexture( data, worldWidth, worldDepth ), new THREE.UVMapping(), THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping );
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-
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- mesh = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { map: texture } ) );
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- mesh.rotation.x = - 90 * Math.PI / 180;
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- scene.addObject( mesh );
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-
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- renderer = new THREE.WebGLRenderer2( false );
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- renderer.sortObjects = false;
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- renderer.setSize( window.innerWidth, window.innerHeight );
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-
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- container.innerHTML = "";
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-
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- container.appendChild( renderer.domElement );
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-
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- stats = new Stats();
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- stats.domElement.style.position = 'absolute';
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- stats.domElement.style.top = '0px';
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- container.appendChild( stats.domElement );
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-
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- document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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- document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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- document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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- document.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false );
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-
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- }
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-
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- function generateHeight( width, height ) {
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-
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- var size = width * height, data = new Float32Array( size ),
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- perlin = new ImprovedNoise(), quality = 1, z = Math.random() * 100;
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-
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- for ( var i = 0; i < size; i ++ ) {
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-
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- data[ i ] = 0
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-
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- }
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-
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- for ( var j = 0; j < 4; j ++ ) {
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-
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- for ( var i = 0; i < size; i ++ ) {
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-
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- var x = i % width, y = ~~ ( i / width );
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- data[ i ] += Math.abs( perlin.noise( x / quality, y / quality, z ) * quality * 1.75 );
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-
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-
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- }
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-
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- quality *= 5;
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-
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- }
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-
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- return data;
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-
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- }
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-
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- function generateTexture( data, width, height ) {
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-
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- var canvas, canvasScaled, context, image, imageData,
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- level, diff, vector3, sun, shade;
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-
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- vector3 = new THREE.Vector3( 0, 0, 0 );
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-
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- sun = new THREE.Vector3( 1, 1, 1 );
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- sun.normalize();
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-
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- canvas = document.createElement( 'canvas' );
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- canvas.width = width;
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- canvas.height = height;
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-
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- context = canvas.getContext( '2d' );
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- context.fillStyle = '#000';
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- context.fillRect( 0, 0, width, height );
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-
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- image = context.getImageData( 0, 0, canvas.width, canvas.height );
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- imageData = image.data;
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-
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- for ( var i = 0, j = 0, l = imageData.length; i < l; i += 4, j ++ ) {
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-
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- vector3.x = data[ j - 2 ] - data[ j + 2 ];
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- vector3.y = 2;
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- vector3.z = data[ j - width * 2 ] - data[ j + width * 2 ];
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- vector3.normalize();
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-
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- shade = vector3.dot( sun );
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-
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- imageData[ i ] = ( 96 + shade * 128 ) * ( 0.5 + data[ j ] * 0.007 );
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- imageData[ i + 1 ] = ( 32 + shade * 96 ) * ( 0.5 + data[ j ] * 0.007 );
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- imageData[ i + 2 ] = ( shade * 96 ) * ( 0.5 + data[ j ] * 0.007 );
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- }
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-
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- context.putImageData( image, 0, 0 );
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-
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- // Scaled 4x
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-
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- canvasScaled = document.createElement( 'canvas' );
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- canvasScaled.width = width * 4;
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- canvasScaled.height = height * 4;
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- canvasScaled.loaded = true;
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-
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- context = canvasScaled.getContext( '2d' );
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- context.scale( 4, 4 );
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- context.drawImage( canvas, 0, 0 );
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-
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- image = context.getImageData( 0, 0, canvasScaled.width, canvasScaled.height );
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- imageData = image.data;
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-
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- for ( var i = 0, l = imageData.length; i < l; i += 4 ) {
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-
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- var v = ~~ ( Math.random() * 5 );
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-
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- imageData[ i ] += v;
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- imageData[ i + 1 ] += v;
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- imageData[ i + 2 ] += v;
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-
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- }
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-
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- context.putImageData( image, 0, 0 );
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-
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- return canvasScaled;
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-
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- }
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-
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- function onDocumentMouseDown( event ) {
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-
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- event.preventDefault();
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- event.stopPropagation();
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-
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- switch ( event.button ) {
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-
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- case 0: moveForward = true; break;
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- case 2: moveBackward = true; break;
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-
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- }
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-
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- }
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-
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- function onDocumentMouseUp( event ) {
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-
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- event.preventDefault();
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- event.stopPropagation();
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-
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- switch ( event.button ) {
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-
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- case 0: moveForward = false; break;
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- case 2: moveBackward = false; break;
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-
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- }
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-
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- }
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-
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- function onDocumentMouseMove(event) {
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-
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- mouseX = event.clientX - windowHalfX;
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- mouseY = event.clientY - windowHalfY;
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-
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- }
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-
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- function loop() {
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-
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- if ( moveForward ) camera.translateZ( - 5 );
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- if ( moveBackward ) camera.translateZ( 5 );
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-
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- lon += mouseX * 0.004;
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- lat -= mouseY * 0.004;
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-
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- lat = Math.max( - 85, Math.min( 85, lat ) );
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- phi = ( 90 - lat ) * Math.PI / 180;
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- theta = lon * Math.PI / 180;
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-
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- camera.target.position.x = 100 * Math.sin( phi ) * Math.cos( theta ) + camera.position.x;
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- camera.target.position.y = 100 * Math.cos( phi ) + camera.position.y;
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- camera.target.position.z = 100 * Math.sin( phi ) * Math.sin( theta ) + camera.position.z;
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-
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- renderer.render(scene, camera);
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- stats.update();
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-
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- }
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-
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- </script>
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-
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- </body>
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-</html>
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Mr.doob