package
{
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.text.TextFormat;
 
	import gs.TweenMax;
 
	import org.papervision3d.cameras.Camera3D;
	import org.papervision3d.materials.WireframeMaterial;
	import org.papervision3d.objects.DisplayObject3D;
	import org.papervision3d.objects.primitives.Plane;
	import org.papervision3d.objects.primitives.Sphere;
	import org.papervision3d.render.BasicRenderEngine;
	import org.papervision3d.scenes.Scene3D;
	import org.papervision3d.view.Viewport3D;
 
	[SWF(width="800", height="300", backgroundColor="#000000", frameRate="60")]
	public class FreeCameraVSTargetCamera extends Sprite
	{
		private var leftViewport:Viewport3D;
		private var leftCamera:Camera3D;
		private var rightViewport:Viewport3D;
		private var rightCamera:Camera3D;
		private var scene:Scene3D;
		private var renderer:BasicRenderEngine;
 
		public function FreeCameraVSTargetCamera()
		{
			leftViewport = new Viewport3D(400, 300);
			leftCamera = new Camera3D();
			leftCamera.y = 100;
			leftCamera.z = -2000;
 
			rightViewport = new Viewport3D(400, 300);
			rightCamera = new Camera3D();
			rightCamera.target = DisplayObject3D.ZERO;//x:0, y:0, z:0
			rightCamera.y = 100;
			rightCamera.z = -2000;
 
			addChild(leftViewport);
			rightViewport.x = 400;
			rightViewport.opaqueBackground = 0xffffff;
			addChild(rightViewport);
 
			scene= new Scene3D();
			renderer = new BasicRenderEngine();
 
			for(var i:int = 0; i < 5; i++)
			{
				for(var j:int = 0; j < 5; j++)
				{
					var randColor:Number = Math.random() * 0xffffff;
					var material:WireframeMaterial = new WireframeMaterial(randColor, 1, 2);
					var sphere:Sphere = new Sphere(material);
					sphere.x = 1000 * i - 2000;
					sphere.z = 1000 * j - 2000;
					scene.addChild(sphere);	
				}
			}
 
			var floor:Plane = new Plane(new WireframeMaterial(0x00cc00, 1, 2), 5000, 5000, 10, 10);
			floor.pitch(90);
			floor.y = -100;
			scene.addChild(floor);
 
			//Set both cameras along the same circular motion
			var bezierThrough:Array = [{x:2000, z:0}, {x:0, z:2000}, {x:-2000, z:0}];
			TweenMax.to(leftCamera, 10, {x:0, z:-2000, bezierThrough:bezierThrough, yoyo:true});
			TweenMax.to(rightCamera, 10, {x:0, z:-2000, bezierThrough:bezierThrough, yoyo:true});
 
			addEventListener(Event.ENTER_FRAME, enterFrameHandler);
 
			addText();
		}
 
		private function addText():void
		{
			var leftHeaderText:headerContainer = new headerContainer();
			leftHeaderText.header.text = "No target";
			addChild(leftHeaderText);
 
			var rightHeaderText:headerContainer = new headerContainer();
			rightHeaderText.x = 400;
			var textFormat:TextFormat = new TextFormat();
			textFormat.color = 0x000000;
			rightHeaderText.header.defaultTextFormat = textFormat;
			rightHeaderText.header.text = "Target DisplayObject3D.ZERO";
			addChild(rightHeaderText);
		}
 
		private function enterFrameHandler(event:Event):void
		{
			renderer.renderScene(scene, leftCamera, leftViewport);
			renderer.renderScene(scene, rightCamera, rightViewport);
		}
	}
}