* `examples/geometry/primitives` ⟶ `src/extras/primitives`

src/extras/primitives/Cube.js

@@ -0,0 +1,46 @@
+/**
+ * @author mr.doob / http://mrdoob.com/
+ */
+
+var Cube = function (width, height, depth) {
+
+	THREE.Geometry.call(this);
+
+	var scope = this,
+	width_half = width / 2,
+	height_half = height / 2,
+	depth_half = depth / 2;
+
+	v(  width_half,  height_half, -depth_half );
+	v(  width_half, -height_half, -depth_half );
+	v( -width_half, -height_half, -depth_half );
+	v( -width_half,  height_half, -depth_half );
+	v(  width_half,  height_half,  depth_half );
+	v(  width_half, -height_half,  depth_half );
+	v( -width_half, -height_half,  depth_half );
+	v( -width_half,  height_half,  depth_half );
+
+	f4( 0, 1, 2, 3 );
+	f4( 4, 7, 6, 5 );
+	f4( 0, 4, 5, 1 );
+	f4( 1, 5, 6, 2 );
+	f4( 2, 6, 7, 3 );
+	f4( 4, 0, 3, 7 );
+
+	function v(x, y, z) {
+
+		scope.vertices.push( new THREE.Vertex( new THREE.Vector3( x, y, z ) ) );
+	}
+
+	function f4(a, b, c, d) {
+
+		scope.faces.push( new THREE.Face4( a, b, c, d ) );
+	}
+
+	this.computeCentroids();
+	this.computeNormals();
+
+}
+
+Cube.prototype = new THREE.Geometry();
+Cube.prototype.constructor = Cube;

src/extras/primitives/Cylinder.js

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+/**
+ * @author kile / http://kile.stravaganza.org/
+ */
+
+var Cylinder = function (numSegs, topRad, botRad, height, topOffset, botOffset) {
+
+	THREE.Geometry.call(this);
+
+	var scope = this, i;
+
+	// VERTICES
+
+	// Top circle vertices
+	for (i = 0; i < numSegs; i++) {
+
+		v( 
+			Math.sin(2 * 3.1415 * i / numSegs)*topRad,
+			Math.cos(2 * 3.1415 * i / numSegs)*topRad,
+			0);
+	}
+
+	// Bottom circle vertices
+	for (i = 0; i < numSegs; i++) {
+
+		v(  
+			Math.sin(2 * 3.1415 * i / numSegs)*botRad,
+			Math.cos(2 * 3.1415 * i / numSegs)*botRad,
+			height);
+	}
+
+
+	// FACES
+
+	// Body	
+	for (i = 0; i < numSegs; i++) {
+
+		f4(i, i + numSegs, numSegs + (i + 1) % numSegs, (i + 1) % numSegs, '#ff0000');
+	}
+
+	// Bottom circle
+	if (botRad != 0) {
+
+		v(0, 0, -topOffset);
+
+		for (i = numSegs; i < numSegs + (numSegs / 2); i++) {
+
+			f4(2 * numSegs,
+			(2 * i - 2 * numSegs) % numSegs,
+			(2 * i - 2 * numSegs + 1) % numSegs,
+			(2 * i - 2 * numSegs + 2) % numSegs);
+		}
+	}
+
+	// Top circle
+	if (topRad != 0) {
+
+		v(0, 0, height + topOffset);
+
+		for (i = numSegs + (numSegs / 2); i < 2 * numSegs; i++) {
+
+			f4(	(2 * i - 2 * numSegs + 2) % numSegs + numSegs,
+				(2 * i - 2 * numSegs + 1) % numSegs + numSegs,
+				(2 * i - 2 * numSegs) % numSegs+numSegs, 
+				2 * numSegs + 1);
+		}
+	}
+
+	this.computeCentroids();
+	this.computeNormals();
+
+	function v(x, y, z) {
+
+		scope.vertices.push( new THREE.Vertex( new THREE.Vector3( x, y, z ) ) );
+	}
+
+	function f4(a, b, c, d) {
+
+		scope.faces.push( new THREE.Face4( a, b, c, d ) );
+	}
+}
+
+Cylinder.prototype = new THREE.Geometry();
+Cylinder.prototype.constructor = Cylinder;

src/extras/primitives/Plane.js

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+/**
+ * @author mr.doob / http://mrdoob.com/
+ * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as
+ */
+
+var Plane = function ( width, height, segments_width, segments_height ) {
+
+	THREE.Geometry.call( this );
+
+	var ix, iy,
+	width_half = width / 2,
+	height_half = height / 2,
+	gridX = segments_width || 1,
+	gridY = segments_height || 1,
+	gridX1 = gridX + 1,
+	gridY1 = gridY + 1,
+	segment_width = width / gridX,
+	segment_height = height / gridY;
+
+
+	for( iy = 0; iy < gridY1; iy++ ) {
+
+		for( ix = 0; ix < gridX1; ix++ ) {
+
+			var x = ix * segment_width - width_half;
+			var y = iy * segment_height - height_half;
+
+			this.vertices.push( new THREE.Vertex( new THREE.Vector3( x, - y, 0 ) ) );
+
+		}
+
+	}
+
+	for( iy = 0; iy < gridY; iy++ ) {
+
+		for( ix = 0; ix < gridX; ix++ ) {
+
+			var a = ix + gridX1 * iy;
+			var b = ix + gridX1 * ( iy + 1 );
+			var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
+			var d = ( ix + 1 ) + gridX1 * iy;
+
+			this.faces.push( new THREE.Face4( a, b, c, d ) );
+			this.uvs.push( [
+						new THREE.UV( ix / gridX, iy / gridY ),
+						new THREE.UV( ix / gridX, ( iy + 1 ) / gridY ),
+						new THREE.UV( ( ix + 1 ) / gridX, ( iy + 1 ) / gridY ),
+						new THREE.UV( ( ix + 1 ) / gridX, iy / gridY )
+					] );
+
+		}
+
+	}
+
+	this.computeCentroids();
+	this.computeNormals();
+
+}
+
+Plane.prototype = new THREE.Geometry();
+Plane.prototype.constructor = Plane;

src/extras/primitives/Sphere.js

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+/**
+ * @author mr.doob / http://mrdoob.com/
+ * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Sphere.as
+ */
+
+var Sphere = function ( radius, segments_width, segments_height, smooth ) {
+
+	THREE.Geometry.call( this );
+
+	var gridX = segments_width || 8,
+	gridY = segments_height || 6;
+
+	var i, j;
+	var iHor = Math.max( 3, gridX );
+	var iVer = Math.max( 2, gridY );
+	var aVtc = [];
+
+	for ( j = 0; j < ( iVer + 1 ) ; j++ ) {
+
+		var fRad1 = j / iVer;
+		var fZ = radius * Math.cos( fRad1 * Math.PI );
+		var fRds = radius * Math.sin( fRad1 * Math.PI );
+		var aRow = [];
+		var oVtx = 0;
+
+		for ( i = 0; i < iHor; i++ ) {
+
+			var fRad2 = 2 * i / iHor;
+			var fX = fRds * Math.sin( fRad2 * Math.PI );
+			var fY = fRds * Math.cos( fRad2 * Math.PI );
+
+			if ( !( ( j == 0 || j == iVer ) && i > 0 ) ) {
+
+				oVtx = this.vertices.push( new THREE.Vertex( new THREE.Vector3( fY, fZ, fX ) ) ) - 1;
+
+			}
+
+			aRow.push( oVtx );
+
+		}
+
+		aVtc.push( aRow );
+
+	}
+
+	var n1, n2, n3, iVerNum = aVtc.length;
+
+	for ( j = 0; j < iVerNum; j++ ) {
+
+		var iHorNum = aVtc[ j ].length;
+
+		if ( j > 0 ) {
+
+			for ( i = 0; i < iHorNum; i++ ) {
+
+				var bEnd = i == ( iHorNum - 1 );
+				var aP1 = aVtc[ j ][ bEnd ? 0 : i + 1 ];
+				var aP2 = aVtc[ j ][ ( bEnd ? iHorNum - 1 : i ) ];
+				var aP3 = aVtc[ j - 1 ][ ( bEnd ? iHorNum - 1 : i ) ];
+				var aP4 = aVtc[ j - 1 ][ bEnd ? 0 : i + 1 ];
+
+				var fJ0 = j / ( iVerNum - 1 );
+				var fJ1 = ( j - 1 ) / ( iVerNum - 1 );
+				var fI0 = ( i + 1 ) / iHorNum;
+				var fI1 = i / iHorNum;
+
+				var aP1uv = new THREE.UV( 1 - fI0, fJ0 );
+				var aP2uv = new THREE.UV( 1 - fI1, fJ0 );
+				var aP3uv = new THREE.UV( 1 - fI1, fJ1 );
+				var aP4uv = new THREE.UV( 1 - fI0, fJ1 );
+
+				if ( j < ( aVtc.length - 1 ) ) {
+
+					n1 = this.vertices[ aP1 ].position.clone();
+					n2 = this.vertices[ aP2 ].position.clone();
+					n3 = this.vertices[ aP3 ].position.clone();
+					n1.normalize();
+					n2.normalize();
+					n3.normalize();
+
+					if ( smooth ) {
+
+						this.faces.push( new THREE.Face3( aP1, aP2, aP3, [ new THREE.Vector3( n1.x, n1.y, n1.z ), new THREE.Vector3( n2.x, n2.y, n2.z ), new THREE.Vector3( n3.x, n3.y, n3.z ) ] ) );
+
+					} else {
+
+						this.faces.push( new THREE.Face3( aP1, aP2, aP3 ) );
+
+					}
+
+					this.uvs.push( [ aP1uv, aP2uv, aP3uv ] );
+
+				}
+
+				if ( j > 1 ) {
+
+					n1 = this.vertices[aP1].position.clone();
+					n2 = this.vertices[aP3].position.clone();
+					n3 = this.vertices[aP4].position.clone();
+					n1.normalize();
+					n2.normalize();
+					n3.normalize();
+
+					if ( smooth ) {
+
+						this.faces.push( new THREE.Face3( aP1, aP3, aP4, [ new THREE.Vector3( n1.x, n1.y, n1.z ), new THREE.Vector3( n2.x, n2.y, n2.z ), new THREE.Vector3( n3.x, n3.y, n3.z ) ] ) );
+
+					} else {
+
+						this.faces.push( new THREE.Face3( aP1, aP3, aP4 ) );
+
+					}
+
+					this.uvs.push( [ aP1uv, aP3uv, aP4uv ] );
+
+				}
+
+			}
+		}
+	}
+
+	this.computeCentroids();
+	this.computeNormals();
+}
+
+Sphere.prototype = new THREE.Geometry();
+Sphere.prototype.constructor = Sphere;