diff --git a/README.md b/README.md
index 1ec239fb21bb26048d508dcbde1b0795fbaad8c0..4f1d9d3995cb58839c30d7c32330dfc8ef193f31 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ Similar projects: [pre3d](http://deanm.github.com/pre3d/), [pvjs](http://code.go
 
 ### Examples ###
 
+[![geometry_terrain](http://github.com/mrdoob/three.js/raw/master/assets/examples/06_terrain.png)](http://mrdoob.com/projects/three.js/examples/geometry_terrain.html)
 [![materials_video](http://github.com/mrdoob/three.js/raw/master/assets/examples/05_video.png)](http://mrdoob.com/projects/three.js/examples/materials_video.html)
 [![geometry_vr](http://github.com/mrdoob/three.js/raw/master/assets/examples/04_vr.png)](http://mrdoob.com/projects/three.js/examples/geometry_vr.html)
 [![geometry_cube](http://github.com/mrdoob/three.js/raw/master/assets/examples/03_cube.png)](http://mrdoob.com/projects/three.js/examples/geometry_cube.html)
@@ -30,7 +31,7 @@ Similar projects: [pre3d](http://deanm.github.com/pre3d/), [pvjs](http://code.go
 [![jsflowfield4d](http://github.com/mrdoob/three.js/raw/master/assets/projects/00_jsflowfield4d.png)](http://test.sjeiti.com/jsflowfield4d/)
 [![spikeball](http://github.com/mrdoob/three.js/raw/master/assets/projects/03_spikeball.png)](http://kile.stravaganza.org/lab/js/spikeball/)
 
-### How to use ###
+### Usage ###
 
 The library needs to be included first thing.
 
diff --git a/assets/examples/06_terrain.png b/assets/examples/06_terrain.png
new file mode 100644
index 0000000000000000000000000000000000000000..ff53a228f75c752fabd01d9a5d0fba8f28cd49d4
Binary files /dev/null and b/assets/examples/06_terrain.png differ
diff --git a/examples/geometry_terrain.html b/examples/geometry_terrain.html
new file mode 100644
index 0000000000000000000000000000000000000000..c57b878c7a587a4a1a8cd2c77476e8dcc25141ec
--- /dev/null
+++ b/examples/geometry_terrain.html
@@ -0,0 +1,305 @@
+<!DOCTYPE HTML>
+<html lang="en">
+	<head>
+		<title>three.js - geometry - terrain</title>
+		<meta charset="utf-8">
+		<style type="text/css">
+			body {
+				color: #71544e;
+				font-family:Monospace;
+				font-size:13px;
+				text-align:center;
+
+				background-color: #bfd1e5;
+				margin: 0px;
+				overflow: hidden;
+			}
+
+			#info {
+				position: absolute;
+				top: 0px; width: 100%;
+				padding: 5px;
+			}
+
+			a {
+
+				color: #b07861;
+			}
+
+		</style>
+	</head>
+	<body>
+
+		<div id="container"><br /><br /><br /><br /><br />Generating...</div> 
+		<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - terrain demo.</div> 
+
+		<script type="text/javascript" src="http://github.com/mrdoob/stats.js/raw/master/build/stats.js"></script>
+		<script type="text/javascript" src="../build/three.js"></script>
+
+		<script type="text/javascript" src="primitives/Plane.js"></script>
+
+		<script type="text/javascript">
+
+			var Perlin = function () {
+
+				// http://mrl.nyu.edu/~perlin/noise/
+
+				var p = [151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,8,99,37,240,21,10,
+					 23,190,6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,35,11,32,57,177,33,88,237,149,56,87,
+					 174,20,125,136,171,168,68,175,74,165,71,134,139,48,27,166,77,146,158,231,83,111,229,122,60,211,
+					 133,230,220,105,92,41,55,46,245,40,244,102,143,54,65,25,63,161,1,216,80,73,209,76,132,187,208,
+					 89,18,169,200,196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226,250,124,123,5,
+					 202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,189,28,42,223,183,170,213,119,
+					 248,152,2,44,154,163,70,221,153,101,155,167,43,172,9,129,22,39,253,19,98,108,110,79,113,224,232,
+					 178,185,112,104,218,246,97,228,251,34,242,193,238,210,144,12,191,179,162,241,81,51,145,235,249,
+					 14,239,107,49,192,214,31,181,199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,138,236,205,
+					 93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180];
+
+				for (var i=0; i < 256 ; i++) {
+
+					p[256+i] = p[i];
+
+				}
+
+				function fade(t) {
+
+					return t * t * t * (t * (t * 6 - 15) + 10);
+
+				}
+
+				function lerp(t, a, b) {
+
+					return a + t * (b - a);
+
+				}
+
+				function grad(hash, x, y, z) {
+
+					var h = hash & 15;
+					var u = h < 8 ? x : y, v = h < 4 ? y : h == 12 || h == 14 ? x : z;
+					return ((h&1) == 0 ? u : -u) + ((h&2) == 0 ? v : -v);
+
+				}
+
+				return {
+
+					noise: function (x, y, z) {
+
+						var floorX = Math.floor(x), floorY = Math.floor(y), floorZ = Math.floor(z);
+
+						var X = floorX & 255, Y = floorY & 255, Z = floorZ & 255;
+
+						x -= floorX;
+						y -= floorY;
+						z -= floorZ;
+
+						var xMinus1 = x -1, yMinus1 = y - 1, zMinus1 = z - 1;
+
+						var u = fade(x), v = fade(y), w = fade(z);
+
+						var A = p[X]+Y, AA = p[A]+Z, AB = p[A+1]+Z, B = p[X+1]+Y, BA = p[B]+Z, BB = p[B+1]+Z;
+
+						return lerp(w, lerp(v, lerp(u, grad(p[AA], x, y, z), 
+										grad(p[BA], xMinus1, y, z)),
+									lerp(u, grad(p[AB], x, yMinus1, z),
+										grad(p[BB], xMinus1, yMinus1, z))),
+								lerp(v, lerp(u, grad(p[AA+1], x, y, zMinus1),
+										grad(p[BA+1], xMinus1, y, z-1)),
+									lerp(u, grad(p[AB+1], x, yMinus1, zMinus1),
+										grad(p[BB+1], xMinus1, yMinus1, zMinus1))));
+
+					}
+				}
+			}
+
+			//
+
+			var SCREEN_WIDTH = window.innerWidth, SCREEN_HEIGHT = window.innerHeight;
+
+			var container, stats;
+
+			var camera, scene, renderer;
+
+			var mesh;
+
+			var mouseX = 0;
+			var mouseY = 0;
+
+			var windowHalfX = window.innerWidth >> 1;
+			var windowHalfY = window.innerHeight >> 1;
+
+
+			init();
+			setInterval( loop, 1000 / 60 );
+
+
+			function init() {
+
+				container = document.getElementById( 'container' );
+
+				camera = new THREE.Camera(0, 0, 500);
+				camera.focus = 300;
+
+				scene = new THREE.Scene();
+
+				var heightMap = height( 1024, 1024 );
+				var textureMap = shadow( heightMap );
+				var material = new THREE.BitmapUVMappingMaterial( textureMap );
+
+				var quality = 20;
+				var quality1 = quality + 1;
+
+				var plane = new Plane( 2000, 2000, quality, quality );
+
+				var data = heightMap.getContext( '2d' ).getImageData( 0, 0, heightMap.width, heightMap.height ).data;
+				var pixelsPerTriangle = Math.floor(heightMap.width / quality1);
+
+				for ( var y = 0; y < quality1; y++ ) {
+
+					for (var x = 0; x < quality1; x++ ) {
+
+						plane.vertices[x + y * quality1].position.z = data[((x * pixelsPerTriangle) + (y * pixelsPerTriangle) * heightMap.width) * 4];
+
+					}
+
+				}
+
+				mesh = new THREE.Mesh( plane, material );
+				mesh.rotation.x = -90 * Math.PI / 180;
+				scene.add(mesh);
+
+				renderer = new THREE.CanvasRenderer();
+				renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
+
+				container.innerHTML = "";
+
+				container.appendChild(renderer.domElement);
+
+				stats = new Stats();
+				stats.domElement.style.position = 'absolute';
+				stats.domElement.style.top = '0px';
+				container.appendChild(stats.domElement);
+
+				document.addEventListener('mousemove', onDocumentMouseMove, false);
+
+			}
+
+			function onDocumentMouseMove(event) {
+
+				mouseX = (event.clientX - windowHalfX);
+				mouseY = (event.clientY - windowHalfY);
+
+			}
+
+			function loop() {
+
+				camera.position.x += (mouseX - camera.position.x) * .05;
+				camera.position.y += (-mouseY - camera.position.y) * .05;
+
+				renderer.render(scene, camera);
+				stats.update();
+
+			}
+
+			function height(width, height) {
+
+				var canvas, context, image, data;
+
+				canvas = document.createElement( 'canvas' );
+				canvas.width = width;
+				canvas.height = height;
+
+				context = canvas.getContext( '2d' );
+				context.fillStyle = '#000';
+				context.fillRect( 0, 0, width, height );
+
+				image = context.getImageData( 0, 0, width, height );
+				data = image.data;
+
+				var perlin = new Perlin();
+
+				var size = width * height;
+				var quality = 2;
+				var zz = Math.random() * 100;
+
+				for ( var j = 0; j < 4; j ++ ) {
+
+					var x = 0, y = 0, yy = 0;
+
+					quality *= 4;
+
+					for ( var i = 0; i < size; i ++ ) {
+
+						data[ i * 4 ] += Math.floor( perlin.noise( x / quality, yy, zz ) * quality + 10 );
+
+						x++;
+
+						if (x == width)
+						{
+							x = 0;
+							y ++;
+							yy = y / quality;
+						}
+
+					}
+				}
+
+				context.putImageData( image, 0, 0 );
+
+				return canvas;
+
+			}
+
+			function shadow( texture ) {
+
+				var canvas, context, image, data, src_data,
+				index, level, diff, width = texture.width, height = texture.height;
+
+				canvas = document.createElement( 'canvas' );
+				canvas.width = width;
+				canvas.height = height;
+
+				context = canvas.getContext( '2d' );
+				context.fillStyle = '#000';
+				context.fillRect( 0, 0, width, height );
+
+				image = context.getImageData( 0, 0, width, height );
+				data = image.data;
+
+				src_data = texture.getContext( '2d' ).getImageData( 0, 0, width, height ).data;
+
+				for ( var y = 0; y < height; y++ ) {
+
+					for ( var x = 0; x < width; x++ ) {
+
+						index = ( x + y * width ) * 4;
+
+						diff = 0;
+						level = width / 4;
+
+						while ( level > 4 ) {
+
+							diff += ( ( src_data[ index - level ] >>> 0 ) - ( src_data[ index + level ] >>> 0 ) ) +
+							( ( src_data[ index - ( width * level ) ] >>> 0 ) - ( src_data[ index + ( width * level ) ] >>> 0 ) ) + 32;
+
+							level /= 2;
+
+						}
+
+						data[ index ] = diff * 0.45;
+						data[ index + 1 ] = diff * 0.29;
+						data[ index + 2 ] = diff * 0.19;
+
+					}
+				}
+
+				context.putImageData( image, 0, 0 );
+
+				return canvas;
+			}
+
+
+		</script>
+
+	</body>
+</html>
diff --git a/examples/materials_video.html b/examples/materials_video.html
index 4dbbc508f26e5699fdfea28b8014ddd617c4036a..aa89f96b7eb34a04ea25d3f90baa3761f322767a 100644
--- a/examples/materials_video.html
+++ b/examples/materials_video.html
@@ -15,15 +15,14 @@
 	</head>
 	<body>
 
+		<script type="text/javascript" src="http://github.com/mrdoob/stats.js/raw/master/build/stats.js"></script>
 		<script type="text/javascript" src="../build/three.js"></script>
 
 		<script type="text/javascript" src="primitives/Plane.js"></script>
 
-		<script type="text/javascript" src="http://github.com/mrdoob/stats.js/raw/master/build/stats.js"></script>
-
-		<video id="video" autoplay="true" style="display:none">
-			<source src="textures/sintel.mp4" type="video/mp4">
-			<source src="textures/sintel.ogv" type="video/ogg">
+		<video id="video" autoplay style="display:none">
+			<source src="textures/sintel.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'>
+			<source src="textures/sintel.ogv" type='video/ogg; codecs="theora, vorbis"'>
 		</video>
 
 		<script type="text/javascript">
@@ -159,7 +158,10 @@
 				camera.position.x += (mouseX - camera.position.x) * .05;
 				camera.position.y += (-mouseY - camera.position.y) * .05;
 
-				textureContext.drawImage( video, 0, 0 );
+				if (video.readyState === video.HAVE_ENOUGH_DATA) {
+
+					textureContext.drawImage( video, 0, 0 );
+				}
 
 				textureReflectionContext.drawImage( texture, 0, 0 );
 				textureReflectionContext.fillStyle = textureReflectionGradient;
diff --git a/examples/primitives/Plane.js b/examples/primitives/Plane.js
index 334affdfbc8db231f378ff1facb866e3acf45def..970ed1f5226f0072919200db8f5b7194f4bf810a 100644
--- a/examples/primitives/Plane.js
+++ b/examples/primitives/Plane.js
@@ -18,7 +18,7 @@ var Plane = function ( width, height, segments_width, segments_height ) {
 	segment_height = height / gridY;
 
 
-	for(var iy = 0; iy < gridY1; iy++) {
+	for( var iy = 0; iy < gridY1; iy++ ) {
 
 		for( var ix = 0; ix < gridX1; ix++ ) {
 
@@ -31,7 +31,7 @@ var Plane = function ( width, height, segments_width, segments_height ) {
 
 	}
 
-	for(  iy = 0; iy < gridY; iy++ ) {
+	for( iy = 0; iy < gridY; iy++ ) {
 
 		for( ix = 0; ix < gridX; ix++ ) {
 
