下面以Windows系统为例：

安装步骤：

1.下载Java JDK，并安装它。目前的最新版是1_5_0_07，文件名为jdk-1_5_0_07-windows-i586-p.exe，文件大小约为34MB，从http://192.18.108.138/ECom/EComTicketServlet/BEGINCC371BB88AD6EB024CA824E5078E9C56/-2147483648/1612698399/1/732086/731822/1612698399/2ts+/westCoastFSEND/jdk-1.5.0_07-oth-JPR/jdk-1.5.0_07-oth-JPR:2/jdk-1_5_0_07-windows-i586-p.exe下载。

2.设置环境变量。就我的电脑为例：

JDK安装路径是C:\Program Files\Java\jdk1.5.0。

设置环境变量:

JAVA_HOME = C:\Program Files\Java\jdk1.5.0;

PATH = %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;"C:\Program Files\Microsoft DirectX SDK (August 2006)\Utilities\Bin\x86";C:\Program Files\PC Connectivity Solution\;D:\oracle\ora92\bin;C:\Program Files\Oracle\jre\1.3.1\bin;C:\Program Files\Oracle\jre\1.1.8\bin;C:\Program Files\Borland\Delphi7\Bin;C:\Program Files\Borland\Delphi7\Projects\Bpl\;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\ATI Technologies\ATI.ACE\;C:\Program Files\IDM Computer Solutions\UltraEdit-32;C:\Program Files\Microsoft SQL Server\80\Tools\BINN;C:\Program Files\Python22;C:\Program Files\MySQL\MySQL Server 5.0\bin;E:\3dsmax5\backburner2\;C:\Program Files\Common Files\Autodesk Shared\

CLASSPATH = .;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar

3.下载Java3D，目前的最新版是1.4.0_01 ，文件名为java3d-1_4_0_01-windows-i586.exe，大小约为 2.77 MB，从 http://192.18.108.149/ECom/EComTicketServlet/BEGIN380C9A6CAFAA00614B92D56EB6694EAA/-2147483648/1612707939/1/735290/735278/1612707939/2ts+/westCoastFSEND/java3d-1.4.0_01-oth-JPR/java3d-1.4.0_01-oth-JPR:5/java3d-1_4_0_01-windows-i586.exe下载。

默认安装就行了。

4.测试Java3D.

我们就用记事本写一个Java3D程序：

import com.sun.j3d.utils.universe.*;

import com.sun.j3d.utils.geometry.ColorCube;

import javax.media.j3d.*;

import javax.vecmath.*;

import java.awt.GraphicsConfiguration;

/**

* Simple Java 3D example program to display a spinning cube.

*/

public class HelloUniverse extends javax.swing.JFrame {

private SimpleUniverse univ = null;

private BranchGroup scene = null;

public BranchGroup createSceneGraph() {

// Create the root of the branch graph

BranchGroup objRoot = new BranchGroup();

// Create the TransformGroup node and initialize it to the

// identity. Enable the TRANSFORM_WRITE capability so that

// our behavior code can modify it at run time. Add it to

// the root of the subgraph.

TransformGroup objTrans = new TransformGroup();

objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

objRoot.addChild(objTrans);

// Create a simple Shape3D node; add it to the scene graph.

objTrans.addChild(new ColorCube(0.4));

// Create a new Behavior object that will perform the

// desired operation on the specified transform and add

// it into the scene graph.

Transform3D yAxis = new Transform3D();

Alpha rotationAlpha = new Alpha(-1, 4000);

RotationInterpolator rotator =

new RotationInterpolator(rotationAlpha, objTrans, yAxis,

0.0f, (float) Math.PI*2.0f);

BoundingSphere bounds =

new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

rotator.setSchedulingBounds(bounds);

objRoot.addChild(rotator);

// Have Java 3D perform optimizations on this scene graph.

objRoot.compile();

return objRoot;

}

private Canvas3D createUniverse() {

// Get the preferred graphics configuration for the default screen

GraphicsConfiguration config =

SimpleUniverse.getPreferredConfiguration();

// Create a Canvas3D using the preferred configuration

Canvas3D c = new Canvas3D(config);

// Create simple universe with view branch

univ = new SimpleUniverse(c);

// This will move the ViewPlatform back a bit so the

// objects in the scene can be viewed.

univ.getViewingPlatform().setNominalViewingTransform();

// Ensure at least 5 msec per frame (i.e., < 200Hz)

univ.getViewer().getView().setMinimumFrameCycleTime(5);

return c;

}

/**

* Creates new form HelloUniverse

*/

public HelloUniverse() {

// Initialize the GUI components

initComponents();

// Create Canvas3D and SimpleUniverse; add canvas to drawing panel

Canvas3D c = createUniverse();

drawingPanel.add(c, java.awt.BorderLayout.CENTER);

// Create the content branch and add it to the universe

scene = createSceneGraph();

univ.addBranchGraph(scene);

}

// ----------------------------------------------------------------

/** This method is called from within the constructor to

* initialize the form.

* WARNING: Do NOT modify this code. The content of this method is

* always regenerated by the Form Editor.

*/

// //GEN-BEGIN:initComponents

private void initComponents() {

drawingPanel = new javax.swing.JPanel();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

setTitle("HelloUniverse");

drawingPanel.setLayout(new java.awt.BorderLayout());

drawingPanel.setPreferredSize(new java.awt.Dimension(250, 250));

getContentPane().add(drawingPanel, java.awt.BorderLayout.CENTER);

pack();

}// //GEN-END:initComponents

/**

* @param args the command line arguments

*/

public static void main(String args[]) {

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new HelloUniverse().setVisible(true);

}

});

}

// Variables declaration - do not modify//GEN-BEGIN:variables

private javax.swing.JPanel drawingPanel;

// End of variables declaration//GEN-END:variables

}

然后把它把保存为HelloUniverse.java，然后用javac HelloUniverse.java编译，最后用java HelloUniverse运行就会出现一个旋转的立方体。

希望大家以后多多交流。