[b]【[url]http://www.newflash3d.com[/url]---flash3D先鋒隊：北京貝武易科技公司】[/b]
有疑問請聯系我QQ:363596350
在Papervision3d，新加入的QuadTree（四叉樹）渲染方法，很好的解決了Papervision3d中交叉面的顯示問題，面少的時候，效率還行。
“QuadrantRenderEngine確實解決了破面現象，但效率實在不敢恭維，特別是面多的時候（如人物）”
下面是一個實際的例子。
單擊一下畫面，我們就可以在Papervision3d BasicRenderEngine（默認的渲染驅動）與QuadrantRenderEngine（四叉樹渲染驅動）之間切換。
[flash=640,480]http://www.ccialuban.com/blogswf/QuadTreeExe01.swf[/flash]
代碼如下，貼圖您可以用自己的貼圖。
package
{
import flash.display.*;
import flash.events.*;
import flash.utils.*;

import org.papervision3d.cameras.*;
import org.papervision3d.materials.*;
import org.papervision3d.materials.special.*;
import org.papervision3d.materials.utils.*;
import org.papervision3d.objects.*;
import org.papervision3d.objects.primitives.*;
import org.papervision3d.render.*;
import org.papervision3d.view.*;

[SWF(width="640", height="480", backgroundColor = "0x000000", frameRate = "60")]

public class QuadTreeExe01 extends BasicView
{
private var plane :DisplayObject3D;
private var cube :DisplayObject3D;

[Embed(source = "assets/bvu.jpg")] private var BitmapClass:Class;

public function QuadTreeExe01()
{
super(0, 0, true, false, CameraType.TARGET);

cube = new Cube(new MaterialsList( { all:new BitmapMaterial(new BitmapClass().bitmapData, true) } ));
cube.x = 400;

var planeMaterial:CompositeMaterial = new CompositeMaterial();
planeMaterial.addMaterial(new ColorMaterial(0xFFFFFF, .5));
planeMaterial.addMaterial(new WireframeMaterial(0xFFFFFF));

plane = new Plane(planeMaterial, 1500, 1500);
plane.material.doubleSided = true;
plane.material.tiled = true;

plane.pitch(90);

scene.addChild(plane);
scene.addChild(cube);

renderer = new QuadrantRenderEngine(QuadrantRenderEngine.ALL_FILTERS);

startRendering()

stage.addEventListener(MouseEvent.CLICK, clickHandler);

}

private function clickHandler(e:MouseEvent):void
{
if(renderer is QuadrantRenderEngine)
renderer = new BasicRenderEngine();
else
renderer = new QuadrantRenderEngine(QuadrantRenderEngine.ALL_FILTERS);
}

protected override function onRenderTick(e:Event = null):void
{
cube.y = Math.sin(getTimer() / 400) * 400;
cube.x = Math.cos(getTimer() / 400) * 100;
cube.roll(1);

// rotate by mouse interactive
camera.x += (Math.sin(mouseX / stage.stageWidth * 3 * Math.PI) * 1200 - camera.x) * .1;
camera.z += (Math.cos(mouseX / stage.stageWidth * 3 * Math.PI) * 1200 - camera.z) * .1;
camera.y += (mouseY / stage.stageHeight * 2000 - 500 - camera.y) * .05;

super.onRenderTick(e)
}
}
}
[b]【[url]http://www.newflash3d.com[/url]---flash3D先鋒隊：北京貝武易科技公司】[/b]
有疑問請聯系我QQ:363596350

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