Another way to solve your z-sorting issues is the use of the Quadrant Render Engine. The QuadrantRenderEngine only takes one parameter (type).
The three "types" of filtering available to you are:
QuadrantRenderEngine.ALL_FILTERS
QuadrantRenderEngine.CORRECT_Z_FILTER
QuadrantRenderEngine.QUAD_SPLIT_FILTER
For a full explanation of each of the 3 types available to you with this renderer take a look at this article.
The QuadrantRenderEngine use a technique of subdividing the screen into smaller and smaller regions to resolve potential conflicts between triangles.
blog.papervision3d.org
As also noted by others, this is a great tool to have around it does come with its performance issues. You may want to test out using ViewportLayers and optimizing in other areas.
Here is the simple code you need to change your renderer when extending BasicView.as:
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renderer = new QuadrantRenderEngine(QuadrantRenderEngine.ALL_FILTERS);
Here is the full code for this example:
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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.render.QuadrantRenderEngine;
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import org.papervision3d.view.BasicView;
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import org.papervision3d.materials.BitmapFileMaterial;
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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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public function Main()
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{
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super();
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//Try commenting out this line to see the issues.
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renderer = new QuadrantRenderEngine(QuadrantRenderEngine.ALL_FILTERS);
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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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}
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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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}
