onebyoneblog

package {
 
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.display.DisplayObject;
	import flash.display.Loader;
	import flash.display.MovieClip;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.net.URLRequest;
 
	import org.papervision3d.core.proto.MaterialObject3D;
	import org.papervision3d.materials.BitmapMaterial;
	import org.papervision3d.materials.ColorMaterial;
	import org.papervision3d.objects.DisplayObject3D;
	import org.papervision3d.objects.primitives.Plane;	
 
	/**
	 * @author den ivanov
 	 * 		   www.cleoag.ru
	 * 		   den [at] cleoag.ru
	 * 
	 * slightly modified by devon wolfgang
	 * 			www.onebyonedesign.com
	 *
	 */
	public class ExtrudedImage extends DisplayObject3D {
 
		private var front:Plane;
		private var back:Plane;
		private var sides:ExtrudedBitmapSides;
		private var zoom:int;
		private var image:BitmapData;
		private var depth:Number;
		private var loader:Loader;
		private var useSmooth:Boolean;
 
		public function ExtrudedImage(img:DisplayObject, useSmooth:Boolean = false, zoomRatio:int = 20, depth:Number = 100) {
			super();
			this.zoom = zoomRatio;
			this.depth = depth * .5;
			this.useSmooth = useSmooth;
			extrudeImage(img);
		}
 
		private function extrudeImage(img:DisplayObject):void {
			clear();
			image = new BitmapData(img.width, img.height, true, 0x00000000);
			image.draw(img);
 
			var m1:BitmapMaterial = new BitmapMaterial(image);
			m1.smooth = useSmooth;
			front = new Plane(m1, image.width * zoom, image.height * zoom, Math.floor(image.width * .25), Math.floor(image.height * .25));
			front.name = "front";
 
			var m2:BitmapMaterial = new BitmapMaterial(image);
			m2.smooth = useSmooth;
			m2.opposite = true;
			back = new Plane(m2, image.width * zoom, image.height * zoom, Math.floor(image.width * .25), Math.floor(image.height * .25));
			back.name = "back";
 
			front.z = -depth;
			back.z = depth;
 
			addChild(front);
			addChild(back);
 
			var m3:BitmapMaterial = new BitmapMaterial(image);
			m3.smooth = useSmooth;
			sides = new ExtrudedBitmapSides(m3, image, zoom, depth);
			sides.name = "sides";
			addChild(sides);
		}
 
		override public function get material():MaterialObject3D { return front.material }
 
		override public function set material(value:MaterialObject3D):void {
			front.material = value;
			back.material = value;
			sides.material = value;
		}
 
		public function clear() : void {
			if (image != null) {
				removeChild(sides);
				removeChild(front);
				removeChild(back);
				sides = null;
				front = null;
				back = null;
				image.dispose();
			}
		}
	}
}

var extrudedImage = new ExtrudedImage(someSprite, true, 4);
var shader:GouraudShader = new GouraudShader(_light);
var shadeMat:ShadedMaterial = new ShadedMaterial((extrudedImage.material) as BitmapMaterial, shader);
shadeMat.smooth = true;
extrudedImage.getChildByName("front").material = shadeMat;