ViewportLayer

ViewportLayer is a layer and may be sorted by z, index, or origin.

Example

Instructions

Import

import org.papervision3d.view.layer.ViewportLayer;

Declare
```
private var layer :ViewportLayer;
```
Initialize
```
layer = new ViewportLayer(viewport, do3d, isDynamic);
```
Parameter Default Description
viewport NONE viewport
do3d NONE object
isDynamic false

Parameter	Default	Description
viewport	NONE	viewport
do3d	NONE	object
isDynamic	false

Add layer

viewport.containerSprite.addLayer(layer);

Add chlid layer
```
layer.getChildLayer(object);
```

Code

package
{
    import flash.display.Sprite;
    import flash.events.Event;

    import org.papervision3d.cameras.Camera3D;
    import org.papervision3d.events.InteractiveScene3DEvent;
    import org.papervision3d.materials.ColorMaterial;
    import org.papervision3d.objects.primitives.Plane;
    import org.papervision3d.render.BasicRenderEngine;
    import org.papervision3d.scenes.Scene3D;
    import org.papervision3d.view.Viewport3D;
    import org.papervision3d.view.layer.ViewportLayer;

    public class Papervision3DViewportLayer extends Sprite
    {
        private var scene     :Scene3D;
        private var camera    :Camera3D;
        private var viewport  :Viewport3D;
        private var layer     :ViewportLayer;
        private var renderer  :BasicRenderEngine;
        private var material  :ColorMaterial;
        private var material2 :ColorMaterial;
        private var object    :Plane;
        private var object2   :Plane;

        public function Papervision3DViewportLayer()
        {
            scene = new Scene3D();

            camera = new Camera3D();

            viewport                  = new Viewport3D();
            viewport.autoScaleToStage = true;
            viewport.interactive      = true;
            addChild(viewport);

            layer          = new ViewportLayer(viewport, null);
            layer.sortMode = "index";
            viewport.containerSprite.addLayer(layer);

            renderer = new BasicRenderEngine();

            material             = new ColorMaterial(0x000000);
            material.doubleSided = true;
            material.interactive = true;

            material2             = new ColorMaterial(0xff0000);
            material2.doubleSided = true;
            material2.interactive = true;

            object   = new Plane(material);
            object.z = -300;
            scene.addChild(object);

            object2           = new Plane(material2);
            object2.rotationY = 90;
            object2.z         = 300;
            scene.addChild(object2);

            layer.getChildLayer(object).layerIndex = 1;
            layer.getChildLayer(object2).layerIndex = 2;

            object.addEventListener(InteractiveScene3DEvent.OBJECT_OVER, handleObjectOver);
            object.addEventListener(InteractiveScene3DEvent.OBJECT_OUT, handleObjectOut);
            object.addEventListener(InteractiveScene3DEvent.OBJECT_PRESS, handleObjectPress);

            object2.addEventListener(InteractiveScene3DEvent.OBJECT_OVER, handleObjectOver);
            object2.addEventListener(InteractiveScene3DEvent.OBJECT_OUT, handleObjectOut);
            object2.addEventListener(InteractiveScene3DEvent.OBJECT_PRESS, handleObjectPress);

            addEventListener(Event.ENTER_FRAME, handleEnterFrame);
        }

        private function handleEnterFrame(e:Event):void
        {
            object.yaw(1);
            object2.yaw(1);

            renderer.renderScene(scene, camera, viewport);
        }

        private function handleObjectOver(e:InteractiveScene3DEvent):void
        {
            viewport.containerSprite.buttonMode = true;
        }

        private function handleObjectOut(e:InteractiveScene3DEvent):void
        {
            viewport.containerSprite.buttonMode = false;
        }

        private function handleObjectPress(e:InteractiveScene3DEvent):void
        {
            if (layer.getChildLayer(object).layerIndex == 1) {
                layer.getChildLayer(object).layerIndex = 2;
                layer.getChildLayer(object2).layerIndex = 1;
            } else {
                layer.getChildLayer(object).layerIndex = 1;
                layer.getChildLayer(object2).layerIndex = 2;
            }
        }
    }
}

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