Take a look at the sphere on the left. Ever had this happen to you and wondered if there was a good way to get rid of it? One of the ways we use is by adding a viewport layer. This works much the same as adding a new layer in flash or adding movieclip over another in AS3.
The best thing about this approach is that it's very simple and quick to implement:
Actionscript:
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viewportLayer = viewport.getChildLayer(sphere, true);
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viewportLayer.addDisplayObject3D(sphere);
For even more in depth discussion on viewport layers take a look at:
http://blog.zupko.info/?p=129
Here is the full class:
Actionscript:
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package
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{
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import flash.events.Event;
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import org.papervision3d.materials.ColorMaterial;
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import org.papervision3d.objects.primitives.Plane;
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import org.papervision3d.objects.primitives.Sphere;
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import org.papervision3d.view.BasicView;
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import org.papervision3d.objects.primitives.Cone;
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import org.papervision3d.materials.BitmapFileMaterial;
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import org.papervision3d.view.layer.ViewportLayer;
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public class Main extends BasicView
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{
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protected var sphere:Sphere
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protected var plane:Plane;
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protected var bitmapMaterial:BitmapFileMaterial;
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protected var colorMaterial:ColorMaterial;
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protected var viewportLayer:ViewportLayer;
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public function Main()
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{
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super();
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createChildren();
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commitProperties();
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startRendering();
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}
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protected function createChildren():void
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{
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//Create a new 3D object
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colorMaterial = new ColorMaterial(0x000000);
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bitmapMaterial = new BitmapFileMaterial("images/ourtex.jpg")
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//Create 3D Objects
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plane = new Plane(colorMaterial,1000,1000,5,5)
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sphere = new Sphere(bitmapMaterial, 50, 10,10);
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//Add to scene
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scene.addChild(plane);
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scene.addChild(sphere);
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//To see the z-sorting issue comment out these two lines
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viewportLayer = viewport.getChildLayer(sphere, true);
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viewportLayer.addDisplayObject3D(sphere);
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}
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protected function commitProperties():void
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{
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//Set some properties
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sphere.scale = 4;
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sphere.pitch( -10);
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plane.rotationX = 60;
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}
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override protected function onRenderTick(event:Event = null):void
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{
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super.onRenderTick(event);
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//Rotate
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sphere.yaw(1);
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}
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}
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}
