interleavedniobuffer.java

java 3d编程的一些例子源代码

	// rotate the shape
	Transform3D temp = new Transform3D();
        temp.rotX(Math.PI/4.0d);
	t.mul(temp);
        temp.rotY(Math.PI/4.0d);
        t.mul(temp);
	
	// Shrink the object 
	t.setScale(0.6);

	TransformGroup trans = new TransformGroup(t);
	trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
	trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);

	objRoot.addChild(trans);
	trans.addChild(shape);

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

	// Set up the global lights
	Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
	Vector3f lDir1  = new Vector3f(-1.0f, -1.0f, -1.0f);
	Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);

	AmbientLight aLgt = new AmbientLight(alColor);
	aLgt.setInfluencingBounds(bounds);
	DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
	lgt1.setInfluencingBounds(bounds);
	objRoot.addChild(aLgt);
	objRoot.addChild(lgt1);
	
	// Let Java 3D perform optimizations on this scene graph.
        objRoot.compile();

	return objRoot;
    }

    JPanel createGeometryByReferencePanel() {
	JPanel panel = new JPanel();
	panel.setBorder(new TitledBorder("Geometry Type"));

	String values[] = {"Array", "Strip", "Indexed", "IndexedStrip"};
	geomType = new JComboBox(values);
	geomType.setLightWeightPopupEnabled(false);
	geomType.addActionListener(this);
	geomType.setSelectedIndex(0);
	panel.add(new JLabel("Geometry Type")); 	
	panel.add(geomType);

	transparency = new JCheckBox("EnableTransparency", 
				      false);
	transparency.addActionListener(this);
	panel.add(transparency);

	textureBox = new JCheckBox("EnableTexture", false);
	textureBox.addActionListener(this);
	panel.add(textureBox);

	return panel;
    }

    public InterleavedNIOBuffer() {
    }

    public InterleavedNIOBuffer(java.net.URL texURL1, java.net.URL texURL2) {
	texImage1 = texURL1;
	texImage2 = texURL2;
    }

    public void init() {

	// create textures
        texImage1 = Resources.getResource("resources/images/bg.jpg");
        if (texImage1 == null) {
            System.err.println("resources/images/bg.jpg not found");
            System.exit(1);
        }

        texImage2 = Resources.getResource("resources/images/one.jpg");
        if (texImage2 == null) {
            System.err.println("resources/images/one.jpg not found");
            System.exit(1);
        }
        
	Container contentPane = getContentPane();
	
        Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
        contentPane.add("Center", c);

        BranchGroup scene = createSceneGraph();
        // SimpleUniverse is a Convenience Utility class
        u = new SimpleUniverse(c);

	// add mouse behaviors to the viewingPlatform
	ViewingPlatform viewingPlatform = u.getViewingPlatform();

        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
        viewingPlatform.setNominalViewingTransform();

	// add Orbit behavior to the viewing platform
	OrbitBehavior orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL);
	BoundingSphere bounds =
	    new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
	orbit.setSchedulingBounds(bounds);
	viewingPlatform.setViewPlatformBehavior(orbit);
	
        u.addBranchGraph(scene);


	// Create GUI
	JPanel p = new JPanel();
	BoxLayout boxlayout = new BoxLayout(p, 
					    BoxLayout.Y_AXIS);
	p.add(createGeometryByReferencePanel());
	p.setLayout(boxlayout);

	contentPane.add("South", p);
    }

    public void destroy() {
	u.cleanup();
    }

    public void actionPerformed(ActionEvent e) {
	Object target = e.getSource();
	if (target == geomType) {
	    shape.setGeometry(geoArrays[geomType.getSelectedIndex()]);

	} 
	else if (target == transparency) {
	    if (transparency.isSelected()) {
		transp.setTransparencyMode(TransparencyAttributes.BLENDED);
	    }
	    else {
		transp.setTransparencyMode(TransparencyAttributes.NONE);
	    }
	} 
	else if (target == textureBox) {
	    if (textureBox.isSelected()) {
		app.setTextureUnitState(textureUnitState);
	    }
	    else {
		app.setTextureUnitState(null);
	    }
	}
    }


			   
    public static void main(String[] args) {
        java.net.URL texURL1 = null;
        java.net.URL texURL2 = null;
        // the path to the image for an application
        texURL1 = Resources.getResource("resources/images/bg.jpg");
        if (texURL1 == null) {
            System.err.println("resources/images/bg.jpg not found");
            System.exit(1);
        }

        texURL2 = Resources.getResource("resources/images/one.jpg");
        if (texURL2 == null) {
            System.err.println("resources/images/one.jpg not found");
            System.exit(1);
        }

	Frame frame = new MainFrame(new InterleavedNIOBuffer(texURL1, texURL2), 
					800, 800);
    }
			   
    public GeometryArray createGeometry (int type) {
	GeometryArray tetra = null;
        int texCoordSetMap[] = {0, 0};

	if (type == 1) {
	    tetra =new TriangleArray(12, 
				     TriangleArray.COORDINATES|
				     TriangleArray.COLOR_3|
				     /*
				       TriangleArray.NORMAL_3|
				       */
				     TriangleArray.TEXTURE_COORDINATE_2 |
				     TriangleArray.INTERLEAVED|
				     TriangleArray.BY_REFERENCE|
				     TriangleArray.USE_NIO_BUFFER,
				     2, texCoordSetMap);
	    
	    tetra.setInterleavedVertexBuffer(interleavedBuffer);

	}
	else if (type == 2) {
	    tetra = new TriangleStripArray(12,
					   TriangleStripArray.COORDINATES|
					   TriangleStripArray.COLOR_3|
					   /*
					     TriangleArray.NORMAL_3|
					     */
					   TriangleArray.TEXTURE_COORDINATE_2 |
					   TriangleStripArray.INTERLEAVED|
					   TriangleStripArray.BY_REFERENCE|
					   TriangleStripArray.USE_NIO_BUFFER,
					   2, texCoordSetMap,
					   stripVertexCounts);
	    tetra.setInterleavedVertexBuffer(interleavedBuffer);

	    
	}
	else if (type == 3) { // Indexed Geometry
	    tetra = new IndexedTriangleArray(4,
					     IndexedTriangleArray.COORDINATES|
					     IndexedTriangleArray.COLOR_3|
					     /*
					       IndexedTriangleArray.NORMAL_3|
					       */
					     IndexedTriangleArray.TEXTURE_COORDINATE_2 |
					     IndexedTriangleArray.INTERLEAVED|
					     IndexedTriangleArray.BY_REFERENCE|
					     IndexedTriangleArray.USE_NIO_BUFFER|
					     IndexedTriangleArray.USE_COORD_INDEX_ONLY,
					     2, texCoordSetMap,
					     12);
	    tetra.setInterleavedVertexBuffer(indexedInterleavedBuffer);
	    ((IndexedTriangleArray)tetra).setCoordinateIndices(0, indices);
	    /*
	    // Do not set color or texcoord indices in UCIO mode
	    ((IndexedTriangleArray)tetra).setColorIndices(0, indices);
	    ((IndexedTriangleArray)tetra).setTextureCoordinateIndices(
					0, 0, indices);
	    ((IndexedTriangleArray)tetra).setTextureCoordinateIndices(
					1, 0, indices);
	    */
	}
	else if (type == 4) { // Indexed strip geometry
	    tetra = new IndexedTriangleStripArray(4,
						  IndexedTriangleStripArray.COORDINATES|
						  IndexedTriangleStripArray.COLOR_3|
						  /*
						    IndexedTriangleArray.NORMAL_3|
						    */
						  IndexedTriangleArray.TEXTURE_COORDINATE_2 |
						  IndexedTriangleStripArray.INTERLEAVED|
						  IndexedTriangleStripArray.BY_REFERENCE|
						  IndexedTriangleStripArray.USE_NIO_BUFFER,
						  //IndexedTriangleStripArray.USE_COORD_INDEX_ONLY,
					          2, texCoordSetMap,
						  12,
						  stripVertexCounts);
	    tetra.setInterleavedVertexBuffer(indexedInterleavedBuffer);
	    ((IndexedTriangleStripArray)tetra).setCoordinateIndices(0, indices);
	    ((IndexedTriangleStripArray)tetra).setColorIndices(0, indices);
	    ((IndexedTriangleStripArray)tetra).setTextureCoordinateIndices(
					0, 0, indices);
	    ((IndexedTriangleStripArray)tetra).setTextureCoordinateIndices(
					1, 0, indices);
	}
	else if (type == 5) { // Interleaved array
	}
	return tetra;
    }
}