Added CTMLoader and example.

OpenCTM mesh format looks quite promising, smaller than UTF8 and more robust, just geometry creation time is slower (decompression is done in JavaScript as opposed to piggybacking on built-in http gzip).

examples/js/ctm/CTMLoader.js

@@ -0,0 +1,293 @@
+/**
+ * Loader for CTM encoded models generated by OpenCTM tools:
+ *	http://openctm.sourceforge.net/
+ *
+ * Uses js-openctm library by Juan Mellado
+ *	http://code.google.com/p/js-openctm/
+ *
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+THREE.CTMLoader = function ( ) {
+
+};
+
+THREE.CTMLoader.prototype = new THREE.CTMLoader();
+THREE.CTMLoader.prototype.constructor = THREE.CTMLoader;
+
+
+// Load CTMLoader compressed models
+//  - parameters
+//		- url (required)
+//		- callback (required)
+
+THREE.CTMLoader.prototype.load = function( url, callback ) {
+
+	var xhr = new XMLHttpRequest(),
+		callbackProgress = null;
+
+	var length = 0;
+
+	xhr.onreadystatechange = function() {
+
+		if ( xhr.readyState == 4 ) {
+
+			if ( xhr.status == 200 || xhr.status == 0 ) {
+
+				THREE.CTMLoader.prototype.createModel( xhr.responseText, callback );
+
+			} else {
+
+				alert( "Couldn't load [" + url + "] [" + xhr.status + "]" );
+
+			}
+
+		} else if ( xhr.readyState == 3 ) {
+
+			if ( callbackProgress ) {
+
+				if ( length == 0 ) {
+
+					length = xhr.getResponseHeader( "Content-Length" );
+
+				}
+
+				callbackProgress( { total: length, loaded: xhr.responseText.length } );
+
+			}
+
+		} else if ( xhr.readyState == 2 ) {
+
+			length = xhr.getResponseHeader( "Content-Length" );
+
+		}
+
+	}
+
+	xhr.overrideMimeType( "text/plain; charset=x-user-defined" );
+	xhr.open( "GET", url, true );
+	xhr.send( null );
+
+};
+
+
+THREE.CTMLoader.prototype.createModel = function ( data, callback ) {
+
+	var Model = function ( texture_path ) {
+
+		var s = (new Date).getTime();
+
+		var scope = this;
+
+		scope.materials = [];
+
+		THREE.Geometry.call( this );
+
+		var file = new CTM.File( new CTM.Stream( data ) );
+
+		console.log( file );
+
+		var normals = [],
+			uvs = [],
+			colors = [];
+
+		init_vertices( file.body.vertices );
+
+		if ( file.body.normals !== undefined )
+			init_normals( file.body.normals );
+
+		if ( file.body.uvMaps !== undefined && file.body.uvMaps.length > 0 )
+			init_uvs( file.body.uvMaps[ 0 ].uv );
+
+		if ( file.body.attrMaps !== undefined && file.body.attrMaps.length > 0 && file.body.attrMaps[ 0 ].name === "Color" )
+			init_colors( file.body.attrMaps[ 0 ].attr );
+
+		var hasNormals = normals.length > 0 ? true : false,
+			hasUvs = uvs.length > 0 ? true : false,
+			hasColors = colors.length > 0 ? true : false;
+
+		init_faces( file.body.indices );
+
+		this.computeCentroids();
+		this.computeFaceNormals();
+		//this.computeTangents();
+
+		var e = (new Date).getTime();
+
+		console.log( "CTM data parse time: " + (e-s) + " ms" );
+
+		function init_vertices( buffer ) {
+
+			var x, y, z, i, il = buffer.length;
+
+			for( i = 0; i < il; i += 3 ) {
+
+				x = buffer[ i ];
+				y = buffer[ i + 1 ];
+				z = buffer[ i + 2 ];
+
+				vertex( scope, x, y, z );
+
+			}
+
+		};
+
+		function init_normals( buffer ) {
+
+			var x, y, z, i, il = buffer.length;
+
+			for( i = 0; i < il; i += 3 ) {
+
+				x = buffer[ i ];
+				y = buffer[ i + 1 ];
+				z = buffer[ i + 2 ];
+
+				normals.push( x, y, z );
+
+			}
+
+		};
+
+		function init_colors( buffer ) {
+
+			var r, g, b, a, i, il = buffer.length;
+
+			for( i = 0; i < il; i += 4 ) {
+
+				r = buffer[ i ];
+				g = buffer[ i + 1 ];
+				b = buffer[ i + 2 ];
+				a = buffer[ i + 3 ];
+
+				var color = new THREE.Color();
+				color.setRGB( r, g, b );
+
+				colors.push( color );
+
+			}
+
+		};
+
+
+		function init_uvs( buffer ) {
+
+			var u, v, i, il = buffer.length;
+
+			for( i = 0; i < il; i += 2 ) {
+
+				u = buffer[ i ];
+				v = buffer[ i + 1 ];
+
+				uvs.push( u, 1 - v );
+
+			}
+
+		};
+
+		function init_faces( buffer ) {
+
+			var a, b, c,
+				u1, v1, u2, v2, u3, v3,
+				m, face,
+				i, il = buffer.length;
+
+			m = 0; // all faces defaulting to material 0
+
+			for( i = 0; i < il; i += 3 ) {
+
+				a = buffer[ i ];
+				b = buffer[ i + 1 ];
+				c = buffer[ i + 2 ];
+
+				if ( hasNormals )
+					face = f3n( scope, normals, a, b, c, m, a, b, c );
+				else
+					face = f3( scope, a, b, c, m );
+
+				if ( hasColors ) {
+
+					face.vertexColors[ 0 ] = colors[ a ];
+					face.vertexColors[ 1 ] = colors[ b ];
+					face.vertexColors[ 2 ] = colors[ c ];
+
+				}
+
+				if ( hasUvs ) {
+
+					u1 = uvs[ a * 2 ];
+					v1 = uvs[ a * 2 + 1 ];
+
+					u2 = uvs[ b * 2 ];
+					v2 = uvs[ b * 2 + 1 ];
+
+					u3 = uvs[ c * 2 ];
+					v3 = uvs[ c * 2 + 1 ];
+
+					uv3( scope.faceVertexUvs[ 0 ], u1, v1, u2, v2, u3, v3 );
+
+				}
+
+			}
+
+		}
+
+	};
+
+	function vertex ( scope, x, y, z ) {
+
+		scope.vertices.push( new THREE.Vertex( new THREE.Vector3( x, y, z ) ) );
+
+	};
+
+	function f3 ( scope, a, b, c, mi ) {
+
+		var face = new THREE.Face3( a, b, c, null, null, mi );
+
+		scope.faces.push( face );
+
+		return face;
+
+	};
+
+	function f3n ( scope, normals, a, b, c, mi, na, nb, nc ) {
+
+		var nax = normals[ na * 3     ],
+			nay = normals[ na * 3 + 1 ],
+			naz = normals[ na * 3 + 2 ],
+
+			nbx = normals[ nb * 3     ],
+			nby = normals[ nb * 3 + 1 ],
+			nbz = normals[ nb * 3 + 2 ],
+
+			ncx = normals[ nc * 3     ],
+			ncy = normals[ nc * 3 + 1 ],
+			ncz = normals[ nc * 3 + 2 ];
+
+		var na = new THREE.Vector3( nax, nay, naz ),
+			nb = new THREE.Vector3( nbx, nby, nbz ),
+			nc = new THREE.Vector3( ncx, ncy, ncz );
+
+		var face = new THREE.Face3( a, b, c, [ na, nb, nc ], null, mi );
+
+		scope.faces.push( face );
+
+		return face;
+
+	};
+
+	function uv3 ( where, u1, v1, u2, v2, u3, v3 ) {
+
+		var uv = [];
+		uv.push( new THREE.UV( u1, v1 ) );
+		uv.push( new THREE.UV( u2, v2 ) );
+		uv.push( new THREE.UV( u3, v3 ) );
+		where.push( uv );
+
+	};
+
+	Model.prototype = new THREE.Geometry();
+	Model.prototype.constructor = Model;
+
+	callback( new Model() );
+
+};

examples/js/ctm/ctm.js

@@ -0,0 +1,626 @@
+
+var CTM = CTM || {};
+
+CTM.CompressionMethod = {
+  RAW: 0x00574152,
+  MG1: 0x0031474d,
+  MG2: 0x0032474d
+};
+
+CTM.Flags = {
+  NORMALS: 0x00000001
+};
+
+CTM.File = function(stream){
+  this.load(stream);
+};
+
+CTM.File.prototype.load = function(stream){
+  this.header = new CTM.FileHeader(stream);
+
+  this.body = new CTM.FileBody(this.header);
+  
+  this.getReader().read(stream, this.body);
+};
+
+CTM.File.prototype.getReader = function(){
+  var reader;
+
+  switch(this.header.compressionMethod){
+    case CTM.CompressionMethod.RAW:
+      reader = new CTM.ReaderRAW();
+      break;
+    case CTM.CompressionMethod.MG1:
+      reader = new CTM.ReaderMG1();
+      break;
+    case CTM.CompressionMethod.MG2:
+      reader = new CTM.ReaderMG2();
+      break;
+  }
+
+  return reader;
+};
+
+CTM.FileHeader = function(stream){
+  stream.readInt32(); //magic "OCTM"
+  this.fileFormat = stream.readInt32();
+  this.compressionMethod = stream.readInt32();
+  this.vertexCount = stream.readInt32();
+  this.triangleCount = stream.readInt32();
+  this.uvMapCount = stream.readInt32();
+  this.attrMapCount = stream.readInt32();
+  this.flags = stream.readInt32();
+  this.comment = stream.readString();
+};
+
+CTM.FileHeader.prototype.hasNormals = function(){
+  return this.flags & CTM.Flags.NORMALS;
+};
+
+CTM.FileBody = function(header){
+  var i = header.triangleCount * 3,
+      v = header.vertexCount * 3,
+      n = header.hasNormals()? header.vertexCount * 3: 0,
+      u = header.vertexCount * 2,
+      a = header.vertexCount * 4,
+      j = 0;
+
+  var data = new ArrayBuffer(
+    (i + v + n + (u * header.uvMapCount) + (a * header.attrMapCount) ) * 4);
+
+  this.indices = new Uint32Array(data, 0, i);
+
+  this.vertices = new Float32Array(data, i * 4, v);
+
+  if ( header.hasNormals() ){
+    this.normals = new Float32Array(data, (i + v) * 4, n);
+  }
+  
+  if (header.uvMapCount){
+    this.uvMaps = [];
+    for (j = 0; j < header.uvMapCount; ++ j){
+      this.uvMaps[j] = {uv: new Float32Array(data,
+        (i + v + n + (j * u) ) * 4, u) };
+    }
+  }
+  
+  if (header.attrMapCount){
+    this.attrMaps = [];
+    for (j = 0; j < header.attrMapCount; ++ j){
+      this.attrMaps[j] = {attr: new Float32Array(data,
+        (i + v + n + (u * header.uvMapCount) + (j * a) ) * 4, a) };
+    }
+  }
+};
+
+CTM.FileMG2Header = function(stream){
+  stream.readInt32(); //magic "MG2H"
+  this.vertexPrecision = stream.readFloat32();
+  this.normalPrecision = stream.readFloat32();
+  this.lowerBoundx = stream.readFloat32();
+  this.lowerBoundy = stream.readFloat32();
+  this.lowerBoundz = stream.readFloat32();
+  this.higherBoundx = stream.readFloat32();
+  this.higherBoundy = stream.readFloat32();
+  this.higherBoundz = stream.readFloat32();
+  this.divx = stream.readInt32();
+  this.divy = stream.readInt32();
+  this.divz = stream.readInt32();
+  
+  this.sizex = (this.higherBoundx - this.lowerBoundx) / this.divx;
+  this.sizey = (this.higherBoundy - this.lowerBoundy) / this.divy;
+  this.sizez = (this.higherBoundz - this.lowerBoundz) / this.divz;
+};
+
+CTM.ReaderRAW = function(){
+};
+
+CTM.ReaderRAW.prototype.read = function(stream, body){
+  this.readIndices(stream, body.indices);
+  this.readVertices(stream, body.vertices);
+  
+  if (body.normals){
+    this.readNormals(stream, body.normals);
+  }
+  if (body.uvMaps){
+    this.readUVMaps(stream, body.uvMaps);
+  }
+  if (body.attrMaps){
+    this.readAttrMaps(stream, body.attrMaps);
+  }
+};
+
+CTM.ReaderRAW.prototype.readIndices = function(stream, indices){
+  stream.readInt32(); //magic "INDX"
+  stream.readArrayInt32(indices);
+};
+
+CTM.ReaderRAW.prototype.readVertices = function(stream, vertices){
+  stream.readInt32(); //magic "VERT"
+  stream.readArrayFloat32(vertices);
+};
+
+CTM.ReaderRAW.prototype.readNormals = function(stream, normals){
+  stream.readInt32(); //magic "NORM"
+  stream.readArrayFloat32(normals);
+};
+
+CTM.ReaderRAW.prototype.readUVMaps = function(stream, uvMaps){
+  var i = 0;
+  for (; i < uvMaps.length; ++ i){
+    stream.readInt32(); //magic "TEXC"
+
+    uvMaps[i].name = stream.readString();
+    uvMaps[i].filename = stream.readString();
+    stream.readArrayFloat32(uvMaps[i].uv);
+  }
+};
+
+CTM.ReaderRAW.prototype.readAttrMaps = function(stream, attrMaps){
+  var i = 0;
+  for (; i < attrMaps.length; ++ i){
+    stream.readInt32(); //magic "ATTR"
+
+    attrMaps[i].name = stream.readString();
+    stream.readArrayFloat32(attrMaps[i].attr);
+  }
+};
+
+CTM.ReaderMG1 = function(){
+};
+
+CTM.ReaderMG1.prototype.read = function(stream, body){
+  this.readIndices(stream, body.indices);
+  this.readVertices(stream, body.vertices);
+  
+  if (body.normals){
+    this.readNormals(stream, body.normals);
+  }
+  if (body.uvMaps){
+    this.readUVMaps(stream, body.uvMaps);
+  }
+  if (body.attrMaps){
+    this.readAttrMaps(stream, body.attrMaps);
+  }
+};
+
+CTM.ReaderMG1.prototype.readIndices = function(stream, indices){
+  stream.readInt32(); //magic "INDX"
+  stream.readInt32(); //packed size
+  
+  var interleaved = new CTM.InterleavedStream(indices, 3);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+
+  CTM.restoreIndices(indices, indices.length);
+};
+
+CTM.ReaderMG1.prototype.readVertices = function(stream, vertices){
+  stream.readInt32(); //magic "VERT"
+  stream.readInt32(); //packed size
+  
+  var interleaved = new CTM.InterleavedStream(vertices, 1);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+};
+
+CTM.ReaderMG1.prototype.readNormals = function(stream, normals){
+  stream.readInt32(); //magic "NORM"
+  stream.readInt32(); //packed size
+
+  var interleaved = new CTM.InterleavedStream(normals, 3);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+};
+
+CTM.ReaderMG1.prototype.readUVMaps = function(stream, uvMaps){
+  var i = 0;
+  for (; i < uvMaps.length; ++ i){
+    stream.readInt32(); //magic "TEXC"
+
+    uvMaps[i].name = stream.readString();
+    uvMaps[i].filename = stream.readString();
+    
+    stream.readInt32(); //packed size
+
+    var interleaved = new CTM.InterleavedStream(uvMaps[i].uv, 2);
+    LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+  }
+};
+
+CTM.ReaderMG1.prototype.readAttrMaps = function(stream, attrMaps){
+  var i = 0;
+  for (; i < attrMaps.length; ++ i){
+    stream.readInt32(); //magic "ATTR"
+
+    attrMaps[i].name = stream.readString();
+    
+    stream.readInt32(); //packed size
+
+    var interleaved = new CTM.InterleavedStream(attrMaps[i].attr, 4);
+    LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+  }
+};
+
+CTM.ReaderMG2 = function(){
+};
+
+CTM.ReaderMG2.prototype.read = function(stream, body){
+  this.MG2Header = new CTM.FileMG2Header(stream);
+  
+  this.readVertices(stream, body.vertices);
+  this.readIndices(stream, body.indices);
+  
+  if (body.normals){
+    this.readNormals(stream, body);
+  }
+  if (body.uvMaps){
+    this.readUVMaps(stream, body.uvMaps);
+  }
+  if (body.attrMaps){
+    this.readAttrMaps(stream, body.attrMaps);
+  }
+};
+
+CTM.ReaderMG2.prototype.readVertices = function(stream, vertices){
+  stream.readInt32(); //magic "VERT"
+  stream.readInt32(); //packed size
+
+  var interleaved = new CTM.InterleavedStream(vertices, 3);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+  
+  var gridIndices = this.readGridIndices(stream, vertices);
+  
+  CTM.restoreVertices(vertices, this.MG2Header, gridIndices, this.MG2Header.vertexPrecision);
+};
+
+CTM.ReaderMG2.prototype.readGridIndices = function(stream, vertices){
+  stream.readInt32(); //magic "GIDX"
+  stream.readInt32(); //packed size
+  
+  var gridIndices = new Uint32Array(vertices.length / 3);
+  
+  var interleaved = new CTM.InterleavedStream(gridIndices, 1);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+  
+  CTM.restoreGridIndices(gridIndices, gridIndices.length);
+  
+  return gridIndices;
+};
+
+CTM.ReaderMG2.prototype.readIndices = function(stream, indices){
+  stream.readInt32(); //magic "INDX"
+  stream.readInt32(); //packed size
+
+  var interleaved = new CTM.InterleavedStream(indices, 3);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+
+  CTM.restoreIndices(indices, indices.length);
+};
+
+CTM.ReaderMG2.prototype.readNormals = function(stream, body){
+  stream.readInt32(); //magic "NORM"
+  stream.readInt32(); //packed size
+
+  var interleaved = new CTM.InterleavedStream(body.normals, 3);
+  LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+
+  var smooth = CTM.calcSmoothNormals(body.indices, body.vertices);
+
+  CTM.restoreNormals(body.normals, smooth, this.MG2Header.normalPrecision);
+};
+
+CTM.ReaderMG2.prototype.readUVMaps = function(stream, uvMaps){
+  var i = 0;
+  for (; i < uvMaps.length; ++ i){
+    stream.readInt32(); //magic "TEXC"
+
+    uvMaps[i].name = stream.readString();
+    uvMaps[i].filename = stream.readString();
+    
+    var precision = stream.readFloat32();
+    
+    stream.readInt32(); //packed size
+
+    var interleaved = new CTM.InterleavedStream(uvMaps[i].uv, 2);
+    LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+    
+    CTM.restoreMap(uvMaps[i].uv, 2, precision);
+  }
+};
+
+CTM.ReaderMG2.prototype.readAttrMaps = function(stream, attrMaps){
+  var i = 0;
+  for (; i < attrMaps.length; ++ i){
+    stream.readInt32(); //magic "ATTR"
+
+    attrMaps[i].name = stream.readString();
+    
+    var precision = stream.readFloat32();
+    
+    stream.readInt32(); //packed size
+
+    var interleaved = new CTM.InterleavedStream(attrMaps[i].attr, 4);
+    LZMA.decompress(stream, stream, interleaved, interleaved.data.length);
+    
+    CTM.restoreMap(attrMaps[i].attr, 4, precision);
+  }
+};
+
+CTM.restoreIndices = function(indices, len){
+  var i = 3;
+  if (len > 0){
+    indices[2] += indices[0];
+  }
+  for (; i < len; i += 3){
+    indices[i] += indices[i - 3];
+    
+    if (indices[i] === indices[i - 3]){
+      indices[i + 1] += indices[i - 2];
+    }else{
+      indices[i + 1] += indices[i];
+    }
+
+    indices[i + 2] += indices[i];
+  }
+};
+
+CTM.restoreGridIndices = function(gridIndices, len){
+  var i = 1;
+  for (; i < len; ++ i){
+    gridIndices[i] += gridIndices[i - 1];
+  }
+};
+
+CTM.restoreVertices = function(vertices, grid, gridIndices, precision){
+  var gridIdx, delta, x, y, z,
+      intVertices = new Uint32Array(vertices.buffer, vertices.byteOffset, vertices.length),
+      ydiv = grid.divx, zdiv = ydiv * grid.divy,
+      prevGridIdx = 0x7fffffff, prevDelta = 0,
+      i = 0, j = 0, len = gridIndices.length;
+
+  for (; i < len; j += 3){
+    x = gridIdx = gridIndices[i ++];
+    
+    z = ~~(x / zdiv);
+    x -= ~~(z * zdiv);
+    y = ~~(x / ydiv);
+    x -= ~~(y * ydiv);
+
+    delta = intVertices[j];
+    if (gridIdx === prevGridIdx){
+      delta += prevDelta;
+    }
+
+    vertices[j]     = grid.lowerBoundx +
+      x * grid.sizex + precision * delta;
+    vertices[j + 1] = grid.lowerBoundy +
+      y * grid.sizey + precision * intVertices[j + 1];
+    vertices[j + 2] = grid.lowerBoundz +
+      z * grid.sizez + precision * intVertices[j + 2];
+
+    prevGridIdx = gridIdx;
+    prevDelta = delta;
+  }
+};
+
+CTM.restoreNormals = function(normals, smooth, precision){
+  var ro, phi, theta, sinPhi,
+      nx, ny, nz, by, bz, len,
+      intNormals = new Uint32Array(normals.buffer, normals.byteOffset, normals.length),
+      i = 0, k = normals.length,
+      PI_DIV_2 = 3.141592653589793238462643 * 0.5;
+
+  for (; i < k; i += 3){
+    ro = intNormals[i] * precision;
+    phi = intNormals[i + 1];
+
+    if (phi === 0){
+      normals[i]     = smooth[i]     * ro;
+      normals[i + 1] = smooth[i + 1] * ro;
+      normals[i + 2] = smooth[i + 2] * ro;
+    }else{
+      
+      if (phi <= 4){
+        theta = (intNormals[i + 2] - 2) * PI_DIV_2;
+      }else{
+        theta = ( (intNormals[i + 2] * 4 / phi) - 2) * PI_DIV_2;
+      }
+      
+      phi *= precision * PI_DIV_2;
+      sinPhi = ro * Math.sin(phi);
+
+      nx = sinPhi * Math.cos(theta);
+      ny = sinPhi * Math.sin(theta);
+      nz = ro * Math.cos(phi);
+
+      bz = smooth[i + 1];
+      by = smooth[i] - smooth[i + 2];
+
+      len = Math.sqrt(2 * bz * bz + by * by);
+      if (len > 1e-20){
+        by /= len;
+        bz /= len;
+      }
+
+      normals[i]     = smooth[i]     * nz +
+        (smooth[i + 1] * bz - smooth[i + 2] * by) * ny - bz * nx;
+      normals[i + 1] = smooth[i + 1] * nz -
+        (smooth[i + 2]      + smooth[i]   ) * bz  * ny + by * nx;
+      normals[i + 2] = smooth[i + 2] * nz +
+        (smooth[i]     * by + smooth[i + 1] * bz) * ny + bz * nx;
+    }
+  }
+};
+
+CTM.restoreMap = function(map, count, precision){
+  var delta, value,
+      intMap = new Uint32Array(map.buffer, map.byteOffset, map.length),
+      i = 0, j, len = map.length;
+
+  for (; i < count; ++ i){
+    delta = 0;
+
+    for (j = i; j < len; j += count){
+      value = intMap[j];
+      
+      delta += value & 1? -( (value + 1) >> 1): value >> 1;
+      
+      map[j] = delta * precision;
+    }
+  }
+};
+
+CTM.calcSmoothNormals = function(indices, vertices){
+  var smooth = new Float32Array(vertices.length),
+      indx, indy, indz, nx, ny, nz,
+      v1x, v1y, v1z, v2x, v2y, v2z, len,
+      i, k;
+
+  for (i = 0, k = indices.length; i < k;){
+    indx = indices[i ++] * 3;
+    indy = indices[i ++] * 3;
+    indz = indices[i ++] * 3;
+
+    v1x = vertices[indy]     - vertices[indx];
+    v2x = vertices[indz]     - vertices[indx];
+    v1y = vertices[indy + 1] - vertices[indx + 1];
+    v2y = vertices[indz + 1] - vertices[indx + 1];
+    v1z = vertices[indy + 2] - vertices[indx + 2];
+    v2z = vertices[indz + 2] - vertices[indx + 2];
+    
+    nx = v1y * v2z - v1z * v2y;
+    ny = v1z * v2x - v1x * v2z;
+    nz = v1x * v2y - v1y * v2x;
+    
+    len = Math.sqrt(nx * nx + ny * ny + nz * nz);
+    if (len > 1e-10){
+      nx /= len;
+      ny /= len;
+      nz /= len;
+    }
+    
+    smooth[indx]     += nx;
+    smooth[indx + 1] += ny;
+    smooth[indx + 2] += nz;
+    smooth[indy]     += nx;
+    smooth[indy + 1] += ny;
+    smooth[indy + 2] += nz;
+    smooth[indz]     += nx;
+    smooth[indz + 1] += ny;
+    smooth[indz + 2] += nz;
+  }
+
+  for (i = 0, k = smooth.length; i < k; i += 3){
+    len = Math.sqrt(smooth[i] * smooth[i] + 
+      smooth[i + 1] * smooth[i + 1] +
+      smooth[i + 2] * smooth[i + 2]);
+
+    if(len > 1e-10){
+      smooth[i]     /= len;
+      smooth[i + 1] /= len;
+      smooth[i + 2] /= len;
+    }
+  }
+
+  return smooth;
+};
+
+CTM.isLittleEndian = (function(){
+  var buffer = new ArrayBuffer(2),
+      bytes = new Uint8Array(buffer),
+      ints = new Uint16Array(buffer);
+
+  bytes[0] = 1;
+
+  return ints[0] === 1;
+}());
+
+CTM.InterleavedStream = function(data, count){
+  this.data = new Uint8Array(data.buffer, data.byteOffset, data.byteLength);
+  this.offset = CTM.isLittleEndian? 3: 0;
+  this.count = count * 4;
+  this.len = this.data.length;
+};
+
+CTM.InterleavedStream.prototype.writeByte = function(value){
+  this.data[this.offset] = value;
+  
+  this.offset += this.count;
+  if (this.offset >= this.len){
+  
+    this.offset -= this.len - 4;
+    if (this.offset >= this.count){
+    
+      this.offset -= this.count + (CTM.isLittleEndian? 1: -1);
+    }
+  }
+};
+
+CTM.Stream = function(data){
+  this.data = data;
+  this.offset = 0;
+};
+
+CTM.Stream.prototype.TWO_POW_MINUS23 = Math.pow(2, -23);
+
+CTM.Stream.prototype.TWO_POW_MINUS126 = Math.pow(2, -126);
+
+CTM.Stream.prototype.readByte = function(){
+  return this.data.charCodeAt(this.offset ++) & 0xff;
+};
+
+CTM.Stream.prototype.readInt32 = function(){
+  var i = this.readByte();
+  i |= this.readByte() << 8;
+  i |= this.readByte() << 16;
+  return i | (this.readByte() << 24);
+};
+
+CTM.Stream.prototype.readFloat32 = function(){
+  var m = this.readByte();
+  m += this.readByte() << 8;
+
+  var b1 = this.readByte();
+  var b2 = this.readByte();
+
+  m += (b1 & 0x7f) << 16; 
+  var e = ( (b2 & 0x7f) << 1) | ( (b1 & 0x80) >>> 7);
+  var s = b2 & 0x80? -1: 1;
+
+  if (e === 255){
+    return m !== 0? NaN: s * Infinity;
+  }
+  if (e > 0){
+    return s * (1 + (m * this.TWO_POW_MINUS23) ) * Math.pow(2, e - 127);
+  }
+  if (m !== 0){
+    return s * m * this.TWO_POW_MINUS126;
+  }
+  return s * 0;
+};
+
+CTM.Stream.prototype.readString = function(){
+  var len = this.readInt32();
+
+  this.offset += len;
+
+  return this.data.substr(this.offset - len, len);
+};
+
+CTM.Stream.prototype.readArrayInt32 = function(array){
+  var i = 0, len = array.length;
+  
+  while(i < len){
+    array[i ++] = this.readInt32();
+  }
+
+  return array;
+};
+
+CTM.Stream.prototype.readArrayFloat32 = function(array){
+  var i = 0, len = array.length;
+
+  while(i < len){
+    array[i ++] = this.readFloat32();
+  }
+
+  return array;
+};

examples/js/ctm/license/OpenCTM.txt

@@ -0,0 +1,20 @@
+Copyright (c) 2009-2010 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not
+    be misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.

examples/js/ctm/license/js-lzma.txt

@@ -0,0 +1,19 @@
+Copyright (c) 2011 Juan Mellado
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

examples/js/ctm/license/js-openctm.txt

@@ -0,0 +1,19 @@
+Copyright (c) 2011 Juan Mellado
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

examples/js/ctm/lzma.js

@@ -0,0 +1,510 @@
+
+var LZMA = LZMA || {};
+
+LZMA.OutWindow = function(){
+  this._windowSize = 0;
+};
+
+LZMA.OutWindow.prototype.create = function(windowSize){
+  if ( (!this._buffer) || (this._windowSize !== windowSize) ){
+    this._buffer = [];
+  }
+  this._windowSize = windowSize;
+  this._pos = 0;
+  this._streamPos = 0;
+};
+
+LZMA.OutWindow.prototype.flush = function(){
+  var size = this._pos - this._streamPos;
+  if (size !== 0){
+    while(size --){
+      this._stream.writeByte(this._buffer[this._streamPos ++]);
+    }
+    if (this._pos >= this._windowSize){
+      this._pos = 0;
+    }
+    this._streamPos = this._pos;
+  }
+};
+
+LZMA.OutWindow.prototype.releaseStream = function(){
+  this.flush();
+  this._stream = null;
+};
+
+LZMA.OutWindow.prototype.setStream = function(stream){
+  this.releaseStream();
+  this._stream = stream;
+};
+
+LZMA.OutWindow.prototype.init = function(solid){
+  if (!solid){
+    this._streamPos = 0;
+    this._pos = 0;
+  }
+};
+
+LZMA.OutWindow.prototype.copyBlock = function(distance, len){
+  var pos = this._pos - distance - 1;
+  if (pos < 0){
+    pos += this._windowSize;
+  }
+  while(len --){
+    if (pos >= this._windowSize){
+      pos = 0;
+    }
+    this._buffer[this._pos ++] = this._buffer[pos ++];
+    if (this._pos >= this._windowSize){
+      this.flush();
+    }
+  }
+};
+
+LZMA.OutWindow.prototype.putByte = function(b){
+  this._buffer[this._pos ++] = b;
+  if (this._pos >= this._windowSize){
+    this.flush();
+  }
+};
+
+LZMA.OutWindow.prototype.getByte = function(distance){
+  var pos = this._pos - distance - 1;
+  if (pos < 0){
+    pos += this._windowSize;
+  }
+  return this._buffer[pos];
+};
+
+LZMA.RangeDecoder = function(){
+};
+
+LZMA.RangeDecoder.prototype.setStream = function(stream){
+  this._stream = stream;
+};
+
+LZMA.RangeDecoder.prototype.releaseStream = function(){
+  this._stream = null;
+};
+
+LZMA.RangeDecoder.prototype.init = function(){
+  var i = 5;
+
+  this._code = 0;
+  this._range = -1;
+  
+  while(i --){
+    this._code = (this._code << 8) | this._stream.readByte();
+  }
+};
+
+LZMA.RangeDecoder.prototype.decodeDirectBits = function(numTotalBits){
+  var result = 0, i = numTotalBits, t;
+
+  while(i --){
+    this._range >>>= 1;
+    t = (this._code - this._range) >>> 31;
+    this._code -= this._range & (t - 1);
+    result = (result << 1) | (1 - t);
+
+    if ( (this._range & 0xff000000) === 0){
+      this._code = (this._code << 8) | this._stream.readByte();
+      this._range <<= 8;
+    }
+  }
+
+  return result;
+};
+
+LZMA.RangeDecoder.prototype.decodeBit = function(probs, index){
+  var prob = probs[index],
+      newBound = (this._range >>> 11) * prob;
+
+  if ( (this._code ^ 0x80000000) < (newBound ^ 0x80000000) ){
+    this._range = newBound;
+    probs[index] += (2048 - prob) >>> 5;
+    if ( (this._range & 0xff000000) === 0){
+      this._code = (this._code << 8) | this._stream.readByte();
+      this._range <<= 8;
+    }
+    return 0;
+  }
+
+  this._range -= newBound;
+  this._code -= newBound;
+  probs[index] -= prob >>> 5;
+  if ( (this._range & 0xff000000) === 0){
+    this._code = (this._code << 8) | this._stream.readByte();
+    this._range <<= 8;
+  }
+  return 1;
+};
+
+LZMA.initBitModels = function(probs, len){
+  while(len --){
+    probs[len] = 1024;
+  }
+};
+
+LZMA.BitTreeDecoder = function(numBitLevels){
+  this._models = [];
+  this._numBitLevels = numBitLevels;
+};
+
+LZMA.BitTreeDecoder.prototype.init = function(){
+  LZMA.initBitModels(this._models, 1 << this._numBitLevels);
+};
+
+LZMA.BitTreeDecoder.prototype.decode = function(rangeDecoder){
+  var m = 1, i = this._numBitLevels;
+
+  while(i --){
+    m = (m << 1) | rangeDecoder.decodeBit(this._models, m);
+  }
+  return m - (1 << this._numBitLevels);
+};
+
+LZMA.BitTreeDecoder.prototype.reverseDecode = function(rangeDecoder){
+  var m = 1, symbol = 0, i = 0, bit;
+
+  for (; i < this._numBitLevels; ++ i){
+    bit = rangeDecoder.decodeBit(this._models, m);
+    m = (m << 1) | bit;
+    symbol |= bit << i;
+  }
+  return symbol;
+};
+
+LZMA.reverseDecode2 = function(models, startIndex, rangeDecoder, numBitLevels){
+  var m = 1, symbol = 0, i = 0, bit;
+
+  for (; i < numBitLevels; ++ i){
+    bit = rangeDecoder.decodeBit(models, startIndex + m);
+    m = (m << 1) | bit;
+    symbol |= bit << i;
+  }
+  return symbol;
+};
+
+LZMA.LenDecoder = function(){
+  this._choice = [];
+  this._lowCoder = [];
+  this._midCoder = [];
+  this._highCoder = new LZMA.BitTreeDecoder(8);
+  this._numPosStates = 0;
+};
+
+LZMA.LenDecoder.prototype.create = function(numPosStates){
+  for (; this._numPosStates < numPosStates; ++ this._numPosStates){
+    this._lowCoder[this._numPosStates] = new LZMA.BitTreeDecoder(3);
+    this._midCoder[this._numPosStates] = new LZMA.BitTreeDecoder(3);
+  }
+};
+
+LZMA.LenDecoder.prototype.init = function(){
+  var i = this._numPosStates;
+  LZMA.initBitModels(this._choice, 2);
+  while(i --){
+    this._lowCoder[i].init();
+    this._midCoder[i].init();
+  }
+  this._highCoder.init();
+};
+
+LZMA.LenDecoder.prototype.decode = function(rangeDecoder, posState){
+  if (rangeDecoder.decodeBit(this._choice, 0) === 0){
+    return this._lowCoder[posState].decode(rangeDecoder);
+  }
+  if (rangeDecoder.decodeBit(this._choice, 1) === 0){
+    return 8 + this._midCoder[posState].decode(rangeDecoder);
+  }
+  return 16 + this._highCoder.decode(rangeDecoder);
+};
+
+LZMA.Decoder2 = function(){
+  this._decoders = [];
+};
+
+LZMA.Decoder2.prototype.init = function(){
+  LZMA.initBitModels(this._decoders, 0x300);
+};
+
+LZMA.Decoder2.prototype.decodeNormal = function(rangeDecoder){
+  var symbol = 1;
+
+  do{
+    symbol = (symbol << 1) | rangeDecoder.decodeBit(this._decoders, symbol);
+  }while(symbol < 0x100);
+
+  return symbol & 0xff;
+};
+
+LZMA.Decoder2.prototype.decodeWithMatchByte = function(rangeDecoder, matchByte){
+  var symbol = 1, matchBit, bit;
+
+  do{
+    matchBit = (matchByte >> 7) & 1;
+    matchByte <<= 1;
+    bit = rangeDecoder.decodeBit(this._decoders, ( (1 + matchBit) << 8) + symbol);
+    symbol = (symbol << 1) | bit;
+    if (matchBit !== bit){
+      while(symbol < 0x100){
+        symbol = (symbol << 1) | rangeDecoder.decodeBit(this._decoders, symbol);
+      }
+      break;
+    }
+  }while(symbol < 0x100);
+
+  return symbol & 0xff;
+};
+
+LZMA.LiteralDecoder = function(){
+};
+
+LZMA.LiteralDecoder.prototype.create = function(numPosBits, numPrevBits){
+  var i;
+
+  if (this._coders
+    && (this._numPrevBits === numPrevBits)
+    && (this._numPosBits === numPosBits) ){
+    return;
+  }
+  this._numPosBits = numPosBits;
+  this._posMask = (1 << numPosBits) - 1;
+  this._numPrevBits = numPrevBits;
+
+  this._coders = [];
+
+  i = 1 << (this._numPrevBits + this._numPosBits);
+  while(i --){
+    this._coders[i] = new LZMA.Decoder2();
+  }
+};
+
+LZMA.LiteralDecoder.prototype.init = function(){
+  var i = 1 << (this._numPrevBits + this._numPosBits);
+  while(i --){
+    this._coders[i].init();
+  }
+};
+
+LZMA.LiteralDecoder.prototype.getDecoder = function(pos, prevByte){
+  return this._coders[( (pos & this._posMask) << this._numPrevBits)
+    + ( (prevByte & 0xff) >>> (8 - this._numPrevBits) )];
+};
+
+LZMA.Decoder = function(){
+  this._outWindow = new LZMA.OutWindow();
+  this._rangeDecoder = new LZMA.RangeDecoder();
+  this._isMatchDecoders = [];
+  this._isRepDecoders = [];
+  this._isRepG0Decoders = [];
+  this._isRepG1Decoders = [];
+  this._isRepG2Decoders = [];
+  this._isRep0LongDecoders = [];
+  this._posSlotDecoder = [];
+  this._posDecoders = [];
+  this._posAlignDecoder = new LZMA.BitTreeDecoder(4);
+  this._lenDecoder = new LZMA.LenDecoder();
+  this._repLenDecoder = new LZMA.LenDecoder();
+  this._literalDecoder = new LZMA.LiteralDecoder();
+  this._dictionarySize = -1;
+  this._dictionarySizeCheck = -1;
+
+  this._posSlotDecoder[0] = new LZMA.BitTreeDecoder(6);
+  this._posSlotDecoder[1] = new LZMA.BitTreeDecoder(6);
+  this._posSlotDecoder[2] = new LZMA.BitTreeDecoder(6);
+  this._posSlotDecoder[3] = new LZMA.BitTreeDecoder(6);
+};
+
+LZMA.Decoder.prototype.setDictionarySize = function(dictionarySize){
+  if (dictionarySize < 0){
+    return false;
+  }
+  if (this._dictionarySize !== dictionarySize){
+    this._dictionarySize = dictionarySize;
+    this._dictionarySizeCheck = Math.max(this._dictionarySize, 1);
+    this._outWindow.create( Math.max(this._dictionarySizeCheck, 4096) );
+  }
+  return true;
+};
+
+LZMA.Decoder.prototype.setLcLpPb = function(lc, lp, pb){
+  var numPosStates = 1 << pb;
+
+  if (lc > 8 || lp > 4 || pb > 4){
+    return false;
+  }
+
+  this._literalDecoder.create(lp, lc);
+
+  this._lenDecoder.create(numPosStates);
+  this._repLenDecoder.create(numPosStates);
+  this._posStateMask = numPosStates - 1;
+
+  return true;
+};
+
+LZMA.Decoder.prototype.init = function(){
+  var i = 4;
+
+  this._outWindow.init(false);
+
+  LZMA.initBitModels(this._isMatchDecoders, 192);
+  LZMA.initBitModels(this._isRep0LongDecoders, 192);
+  LZMA.initBitModels(this._isRepDecoders, 12);
+  LZMA.initBitModels(this._isRepG0Decoders, 12);
+  LZMA.initBitModels(this._isRepG1Decoders, 12);
+  LZMA.initBitModels(this._isRepG2Decoders, 12);
+  LZMA.initBitModels(this._posDecoders, 114);
+
+  this._literalDecoder.init();
+
+  while(i --){
+    this._posSlotDecoder[i].init();
+  }
+
+  this._lenDecoder.init();
+  this._repLenDecoder.init();
+  this._posAlignDecoder.init();
+  this._rangeDecoder.init();
+};
+
+LZMA.Decoder.prototype.decode = function(inStream, outStream, outSize){
+  var state = 0, rep0 = 0, rep1 = 0, rep2 = 0, rep3 = 0, nowPos64 = 0, prevByte = 0,
+      posState, decoder2, len, distance, posSlot, numDirectBits;
+
+  this._rangeDecoder.setStream(inStream);
+  this._outWindow.setStream(outStream);
+
+  this.init();
+
+  while(outSize < 0 || nowPos64 < outSize){
+    posState = nowPos64 & this._posStateMask;
+
+    if (this._rangeDecoder.decodeBit(this._isMatchDecoders, (state << 4) + posState) === 0){
+      decoder2 = this._literalDecoder.getDecoder(nowPos64 ++, prevByte);
+
+      if (state >= 7){
+        prevByte = decoder2.decodeWithMatchByte(this._rangeDecoder, this._outWindow.getByte(rep0) );
+      }else{
+        prevByte = decoder2.decodeNormal(this._rangeDecoder);
+      }
+      this._outWindow.putByte(prevByte);
+
+      state = state < 4? 0: state - (state < 10? 3: 6);
+
+    }else{
+
+      if (this._rangeDecoder.decodeBit(this._isRepDecoders, state) === 1){
+        len = 0;
+        if (this._rangeDecoder.decodeBit(this._isRepG0Decoders, state) === 0){
+          if (this._rangeDecoder.decodeBit(this._isRep0LongDecoders, (state << 4) + posState) === 0){
+            state = state < 7? 9: 11;
+            len = 1;
+          }
+        }else{
+          if (this._rangeDecoder.decodeBit(this._isRepG1Decoders, state) === 0){
+            distance = rep1;
+          }else{
+            if (this._rangeDecoder.decodeBit(this._isRepG2Decoders, state) === 0){
+              distance = rep2;
+            }else{
+              distance = rep3;
+              rep3 = rep2;
+            }
+            rep2 = rep1;
+          }
+          rep1 = rep0;
+          rep0 = distance;
+        }
+        if (len === 0){
+          len = 2 + this._repLenDecoder.decode(this._rangeDecoder, posState);
+          state = state < 7? 8: 11;
+        }
+      }else{
+        rep3 = rep2;
+        rep2 = rep1;
+        rep1 = rep0;
+
+        len = 2 + this._lenDecoder.decode(this._rangeDecoder, posState);
+        state = state < 7? 7: 10;
+
+        posSlot = this._posSlotDecoder[len <= 5? len - 2: 3].decode(this._rangeDecoder);
+        if (posSlot >= 4){
+
+          numDirectBits = (posSlot >> 1) - 1;
+          rep0 = (2 | (posSlot & 1) ) << numDirectBits;
+
+          if (posSlot < 14){
+            rep0 += LZMA.reverseDecode2(this._posDecoders,
+                rep0 - posSlot - 1, this._rangeDecoder, numDirectBits);
+          }else{
+            rep0 += this._rangeDecoder.decodeDirectBits(numDirectBits - 4) << 4;
+            rep0 += this._posAlignDecoder.reverseDecode(this._rangeDecoder);
+            if (rep0 < 0){
+              if (rep0 === -1){
+                break;
+              }
+              return false;
+            }
+          }
+        }else{
+          rep0 = posSlot;
+        }
+      }
+
+      if (rep0 >= nowPos64 || rep0 >= this._dictionarySizeCheck){
+        return false;
+      }
+
+      this._outWindow.copyBlock(rep0, len);
+      nowPos64 += len;
+      prevByte = this._outWindow.getByte(0);
+    }
+  }
+
+  this._outWindow.flush();
+  this._outWindow.releaseStream();
+  this._rangeDecoder.releaseStream();
+
+  return true;
+};
+
+LZMA.Decoder.prototype.setDecoderProperties = function(properties){
+  var value, lc, lp, pb, dictionarySize;
+
+  if (properties.size < 5){
+    return false;
+  }
+
+  value = properties.readByte();
+  lc = value % 9;
+  value = ~~(value / 9);
+  lp = value % 5;
+  pb = ~~(value / 5);
+
+  if ( !this.setLcLpPb(lc, lp, pb) ){
+    return false;
+  }
+
+  dictionarySize = properties.readByte();
+  dictionarySize |= properties.readByte() << 8;
+  dictionarySize |= properties.readByte() << 16;
+  dictionarySize += properties.readByte() * 16777216;
+
+  return this.setDictionarySize(dictionarySize);
+};
+
+LZMA.decompress = function(properties, inStream, outStream, outSize){
+  var decoder = new LZMA.Decoder();
+
+  if ( !decoder.setDecoderProperties(properties) ){
+    throw "Incorrect stream properties";
+  }
+
+  if ( !decoder.decode(inStream, outStream, outSize) ){
+    throw "Error in data stream";
+  }
+
+  return true;
+};

examples/webgl_loader_ctm.html

@@ -0,0 +1,216 @@
+<!doctype html>
+<html lang="en">
+	<head>
+		<title>three.js webgl - io - CTM loader</title>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
+		<style>
+			body {
+				font-family: Monospace;
+				background-color: #000;
+				color: #fff;
+				margin: 0px;
+				overflow: hidden;
+			}
+			#info {
+				color: #fff;
+				position: absolute;
+				top: 10px;
+				width: 100%;
+				text-align: center;
+				z-index: 100;
+				display:block;
+			}
+			#info a, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
+		</style>
+	</head>
+
+	<body>
+		<div id="info">
+		<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> -
+		<a href="http://openctm.sourceforge.net/" target="_blank">CTM format</a> loader test -
+		using <a href="http://code.google.com/p/js-openctm/">js-openctm</a> -
+		models from <a href="http://www.sci.utah.edu/~wald/animrep/" target="_blank">The Utah 3D Animation Repository</a>,
+		<a href="http://www.ir-ltd.net/infinite-3d-head-scan-released/" target="_blank">Lee Perry-Smith</a>,
+		<a href="http://www.davidoreilly.com/2009/01/walt-disneys-head-on-a-plate" target="_blank">David OReilly</a>
+		</div>
+
+		<script src="../build/Three.js"></script>
+
+		<script src="js/ctm/lzma.js"></script>
+		<script src="js/ctm/ctm.js"></script>
+		<script src="js/ctm/CTMLoader.js"></script>
+
+		<script src="js/Detector.js"></script>
+		<script src="js/Stats.js"></script>
+
+		<script>
+
+			var SCREEN_WIDTH = window.innerWidth;
+			var SCREEN_HEIGHT = window.innerHeight;
+
+			var container, stats;
+
+			var camera, scene, renderer;
+
+			var mesh, zmesh, geometry;
+
+			var mouseX = 0, mouseY = 0;
+
+			var windowHalfX = window.innerWidth / 2;
+			var windowHalfY = window.innerHeight / 2;
+
+			document.addEventListener('mousemove', onDocumentMouseMove, false);
+
+			init();
+			animate();
+
+
+			function init() {
+
+				container = document.createElement( 'div' );
+				document.body.appendChild( container );
+
+				camera = new THREE.PerspectiveCamera( 20, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 2000 );
+				camera.position.z = 800;
+
+				scene = new THREE.Scene();
+				scene.fog = new THREE.Fog( 0x050505, 800, camera.far );
+
+
+				var path = "textures/cube/SwedishRoyalCastle/";
+				var format = '.jpg';
+				var urls = [
+					path + 'px' + format, path + 'nx' + format,
+					path + 'py' + format, path + 'ny' + format,
+					path + 'pz' + format, path + 'nz' + format
+				];
+
+				reflectionCube = THREE.ImageUtils.loadTextureCube( urls );
+
+				// LIGHTS
+
+				var ambient = new THREE.AmbientLight( 0xaaaaaa );
+				scene.add( ambient );
+
+				var directionalLight = new THREE.DirectionalLight( 0xffeedd );
+				directionalLight.position.set( 0, 0, 1 ).normalize();
+				scene.add( directionalLight );
+
+				// RENDERER
+
+				renderer = new THREE.WebGLRenderer( { antialias: true } );
+				renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
+
+				renderer.setClearColor( scene.fog.color, 1 );
+
+				renderer.domElement.style.position = "relative";
+				container.appendChild( renderer.domElement );
+
+				//
+
+				renderer.gammaInput = true;
+				renderer.gammaOutput = true;
+
+				// STATS
+
+				stats = new Stats();
+				stats.domElement.style.position = 'absolute';
+				stats.domElement.style.top = '0px';
+				stats.domElement.style.zIndex = 100;
+				container.appendChild( stats.domElement );
+
+				// EVENTS
+
+				window.addEventListener( 'resize', onWindowResize, false );
+
+				// LOADER
+
+				var loader = new THREE.CTMLoader();
+
+				loader.load( "ctm/ben.ctm",   function( geometry ) {
+
+					var material = new THREE.MeshLambertMaterial( { color: 0xffaa00, map: THREE.ImageUtils.loadTexture( "textures/ash_uvgrid01.jpg" ), envMap: reflectionCube, combine: THREE.MixOperation, reflectivity: 0.3 } );
+					callbackModel( geometry, 450, material, 0, -200, 0, 0, 0 );
+
+				} );
+
+				loader.load( "ctm/WaltHead.ctm",  function( geometry ) {
+
+					//geometry.computeVertexNormals();
+
+					var material = new THREE.MeshLambertMaterial( { color: 0xffffff, envMaps: reflectionCube, combine: THREE.MixOperation, reflectivity: 0.3 } );
+					callbackModel( geometry, 5, material, -200, 0, 0, 0, 0 );
+
+				});
+
+				loader.load( "ctm/LeePerry.ctm",  function( geometry ) {
+
+					var material = new THREE.MeshPhongMaterial( { color: 0xffffff, specular: 0x444444, shininess: 30, map: THREE.ImageUtils.loadTexture( "obj/leeperrysmith/Map-COL.jpg" ), envMaps: reflectionCube, combine: THREE.MixOperation, reflectivity: 0.3 } );
+					callbackModel( geometry, 1300, material, 200, 50, 0, 0, 0 );
+
+				});
+
+			}
+
+			function callbackModel( geometry, s, material, x, y, z, rx, ry ) {
+
+				var mesh = new THREE.Mesh( geometry, material );
+
+				mesh.position.set( x, y, z );
+				mesh.scale.set( s, s, s );
+				mesh.rotation.x = rx;
+				mesh.rotation.z = ry;
+				//mesh.flipSided = true;
+
+				scene.add( mesh );
+
+			}
+
+			//
+
+			function onWindowResize( event ) {
+
+				SCREEN_WIDTH = window.innerWidth;
+				SCREEN_HEIGHT = window.innerHeight;
+
+				renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
+
+				camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
+				camera.updateProjectionMatrix();
+
+			}
+
+			function onDocumentMouseMove( event ) {
+
+				mouseX = ( event.clientX - windowHalfX );
+				mouseY = ( event.clientY - windowHalfY );
+
+			}
+
+			//
+
+			function animate() {
+
+				requestAnimationFrame( animate );
+
+				render();
+				stats.update();
+
+			}
+
+			function render() {
+
+				camera.position.x += ( mouseX - camera.position.x ) * .05;
+				camera.position.y += ( - mouseY - camera.position.y ) * .05;
+
+				camera.lookAt( scene.position );
+
+				renderer.render( scene, camera );
+
+			}
+
+		</script>
+
+	</body>
+</html>