Java3D/J3D/Jogamp测试代码

Posted 2022-12-11 柳鲲鹏

记得之前已经发布过，没找到，于是就发一个。

不同平台需要对应的本地编译库。按照六石风格，已经贴心的提供了下载：

https://download.csdn.net/download/quantum7/86952154

package taishan;

import java.awt.GraphicsConfiguration;
import java.awt.image.BufferedImage;
import java.util.Enumeration;

import javax.media.j3d.Alpha;
import javax.media.j3d.Appearance;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.Interpolator;
import javax.media.j3d.PolygonAttributes;
import javax.media.j3d.QuadArray;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.WakeupCriterion;
import javax.media.j3d.WakeupOnElapsedFrames;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.vecmath.Point3d;

import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.universe.SimpleUniverse;

@SuppressWarnings("serial")
public class Java3DTest extends TsFrame

    Java3DTest()
    
        setTitle("gl");
        setBounds(0, 0, 500, 500);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel();
        add(panel);
    
    
    private void action3d()
    
    	try
    	
    		GraphicsConfiguration config =  SimpleUniverse.getPreferredConfiguration();
        	
            Canvas3D canvas3d = new Canvas3D(config);
            canvas3d.setBounds(0, 0, 500, 500);
            add(canvas3d);
            
            SimpleUniverse u = new SimpleUniverse(canvas3d);
            u.addBranchGraph(createSence());
            u.getViewingPlatform().setNominalViewingTransform();
        
    	catch (Throwable e)
    	
    		e.printStackTrace();
    	
    

    private BranchGroup createSence()
    
        BranchGroup sence = new BranchGroup();
        
        final TransformGroup tg = new TransformGroup();
        tg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
        
        final Alpha alpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0);
        final float[] verts = 
                -1,  1,  0,
                -1, -1,  0,
                 1, -1,  0,
                 1,  1,  0
        ;
        final float[] src = 
                -1,  1,  0,
                -1, -1,  0,
                 1, -1,  0,
                 1,  1,  0
        ;
        
        final float[] cs = new float[3];
        Interpolator interpolator = new Interpolator() 
            private WakeupCriterion passiveWakeupCriterion = new WakeupOnElapsedFrames(0, true);
            private Transform3D transform3d = new Transform3D();
            
            @Override
            public void processStimulus(@SuppressWarnings("rawtypes") Enumeration criteria) 
                float alphaValue = alpha.value();
                double val = (1.0 - alphaValue) * 0 + alphaValue * Math.PI*2;
                for(int i=0;i<4;i++) 
                    System.arraycopy(src, i*3, cs, 0, 3);
                    float[] ps = MatrixKit.roteY(cs , val);
                    System.arraycopy(ps, 0, verts, i*3, 3);
                
                wakeupOn(passiveWakeupCriterion);
                tg.setTransform(transform3d);
            
        ;
        interpolator.setSchedulingBounds(new BoundingSphere(new Point3d(0, 0, 0), 100f));
        tg.addChild(interpolator);
        
        sence.addChild(tg);
        
        QuadArray arr = new QuadArray(4, QuadArray.COORDINATES|QuadArray.BY_REFERENCE|QuadArray.TEXTURE_COORDINATE_2);
        arr.setCapability(QuadArray.ALLOW_COORDINATE_WRITE);
        arr.setTexCoordRefFloat(0, new float[] 0, 0, 1, 0, 1, 1, 1, 0);
        arr.setCoordRefFloat(verts);
        
        Shape3D shape = new Shape3D(arr);
        Appearance app = createTextureApp();
        shape.setAppearance(app);
        tg.addChild(shape);
        return sence;
    
    
    private Appearance createTextureApp() 
        Appearance app = new Appearance();
        app.setCapability(Appearance.ALLOW_TRANSPARENCY_ATTRIBUTES_WRITE);
        BufferedImage image = getImage();
        app.setTexture(new TextureLoader(image, TextureLoader.ALLOW_NON_POWER_OF_TWO|TextureLoader.BY_REFERENCE).getTexture());

        //for loop.
        PolygonAttributes polygonAttributes = new PolygonAttributes();
        polygonAttributes.setCullFace(PolygonAttributes.CULL_NONE);
        polygonAttributes.setCapability(PolygonAttributes.ALLOW_CULL_FACE_WRITE);
        app.setPolygonAttributes(polygonAttributes);
        
        return app;
    
    
    public static void main(String[] args)
    
        Java3DTest test = new Java3DTest();
        test.action3d();
        test.setVisible(true);