java3d applet 入门小案例

import java.applet.Applet; import java.awt.*; import com.sun.j3d.utils.applet.MainFrame; import java.awt.BorderLayout; import com.sun.j3d.utils.universe.SimpleUniverse; import javax.media.j3d.*; import javax.vecmath.*; import com.sun.j3d.utils.behaviors.mouse.*; import com.sun.j3d.utils.geometry.*; import com.sun.j3d.utils.image.TextureLoader; public class box extends Applet { BranchGroup createSceneGraph() { Color3f black = new Color3f(0.0f, 0.0f, 0.0f); Color3f white = new Color3f(1.0f, 1.0f, 1.0f); Color3f gray = new Color3f(0.4f, 0.4f, 0.4f); BranchGroup objRoot=new BranchGroup(); BoundingSphere bounds=new BoundingSphere(new Point3d(0,0,0),100); DirectionalLight lightB=new DirectionalLight(new Color3f(1.0f,0.0f,0.0f),new Vector3f(0.0f,0.0f,-1.0f)); lightB.setInfluencingBounds(new BoundingSphere()); objRoot.addChild(lightB); Appearance ap=new Appearance(); ColoringAttributes ca=new ColoringAttributes(); TransparencyAttributes ta=new TransparencyAttributes(); ta.setTransparency(0.2f); ta.setTransparencyMode(TransparencyAttributes.BLENDED); ca.setColor(1f,1f,1f); ap.setTransparencyAttributes(ta); ap.setColoringAttributes(ca); Box box=new Box(0.6f,0.5f,0.1f,ap); Transform3D t3d=new Transform3D(); TransformGroup trans=new TransformGroup(); trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); trans.addChild(box); Appearance app1=new Appearance(); TextureLoader tex = new TextureLoader("mm.jpg", this); app1.setTexture(tex.getTexture()); app1.setMaterial(new Material(gray, black, gray, white, 1.0f)); Box QC = new Box(0.55f,0.45f,0.05f,Primitive.GENERATE_NORMALS|Primitive.GENERATE_TEXTURE_COORDS,app1); trans.addChild(QC); objRoot.addChild(trans); MouseRotate behavior=new MouseRotate(); behavior.setTransformGroup(trans); behavior.setSchedulingBounds(bounds); objRoot.addChild(behavior); MouseZoom behaviorZ=new MouseZoom(MouseBehavior.INVERT_INPUT); behaviorZ.setTransformGroup(trans); behaviorZ.setSchedulingBounds(bounds); objRoot.addChild(behaviorZ); return objRoot; } public box () { setLayout(new BorderLayout()); GraphicsConfiguration config=SimpleUniverse.getPreferredConfiguration(); Canvas3D c=new Canvas3D(config); add("Center",c); BranchGroup scene=createSceneGraph(); SimpleUniverse u= new SimpleUniverse(c); u.getViewingPlatform().setNominalViewingTransform(); u.addBranchGraph(scene); } public static void main(String args []) { new MainFrame(new box(),800,600); } }