Java tutorial
/* * LocalEyeApp.java 1.0 99/04/12 * * Copyright (c) 1999 Sun Microsystems, Inc. All Rights Reserved. * * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use, * modify and redistribute this software in source and binary code form, * provided that i) this copyright notice and license appear on all copies of * the software; and ii) Licensee does not utilize the software in a manner * which is disparaging to Sun. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * * This software is not designed or intended for use in on-line control of * aircraft, air traffic, aircraft navigation or aircraft communications; or in * the design, construction, operation or maintenance of any nuclear * facility. Licensee represents and warrants that it will not use or * redistribute the Software for such purposes. */ /* * This program demonstrates the difference between Local Eye Lighting * and Infinite Eye Lighting. To see the difference, you need to * comment out the appropriate line in the code, recompile and rerun * the application. * * This version of the program is different than the one used to * generate images for the tutorial document. This this version * both a directional and point light are included in the scene. * the directional light is red, the point light is white. The spheres * are blue (diffuse) with white specular material. * * The red specular reflections are from the directional light. * The white specular reflections are from the point light. * The blue diffuse reflection is from the directional light. * * This application (or a version of it) generated one or more * of the images in Chapter 6 of Getting Started with the Java 3D API. * The Java 3D Turtorial. * * See http://www.sun.com/desktop/java3d/collateral for more information. * */ import java.applet.Applet; import java.awt.BorderLayout; import javax.media.j3d.AmbientLight; import javax.media.j3d.Appearance; import javax.media.j3d.Background; import javax.media.j3d.BoundingSphere; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.DirectionalLight; import javax.media.j3d.Material; import javax.media.j3d.PointLight; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.vecmath.Color3f; import javax.vecmath.Point3f; import javax.vecmath.Vector3f; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.geometry.Sphere; import com.sun.j3d.utils.universe.SimpleUniverse; /** * LocalEyeApp creates a single plane with texture mapping. */ public class LocalEyeApp extends Applet { TransformGroup createTG(float x, float y, float z) { Vector3f position = new Vector3f(x, y, z); Transform3D translate = new Transform3D(); translate.set(position); TransformGroup trans1 = new TransformGroup(translate); return trans1; } Appearance createMatAppear(Color3f dColor, Color3f sColor, float shine) { Appearance appear = new Appearance(); Material material = new Material(); material.setDiffuseColor(dColor); material.setSpecularColor(sColor); material.setShininess(shine); appear.setMaterial(material); return appear; } public LocalEyeApp() { setLayout(new BorderLayout()); Canvas3D c = new Canvas3D(null); add("Center", c); Color3f white = new Color3f(1.0f, 1.0f, 1.0f); Color3f red = new Color3f(1.0f, 0.0f, 0.0f); Color3f blue = new Color3f(0.0f, 0.0f, 1.0f); BranchGroup scene = new BranchGroup(); TransformGroup trans11 = createTG(-0.7f, 0.7f, -0.5f); scene.addChild(trans11); trans11.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans12 = createTG(0.0f, 0.7f, -0.5f); scene.addChild(trans12); trans12.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans13 = createTG(0.7f, 0.7f, -0.5f); scene.addChild(trans13); trans13.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans21 = createTG(-0.7f, 0.0f, -0.5f); scene.addChild(trans21); trans21.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans22 = createTG(0.0f, 0.0f, -0.5f); scene.addChild(trans22); trans22.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans23 = createTG(0.7f, 0.0f, -0.5f); scene.addChild(trans23); trans23.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans31 = createTG(-0.7f, -0.7f, -0.5f); scene.addChild(trans31); trans31.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans32 = createTG(0.0f, -0.7f, -0.5f); scene.addChild(trans32); trans32.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); TransformGroup trans33 = createTG(0.7f, -0.7f, -0.5f); scene.addChild(trans33); trans33.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f))); AmbientLight lightA = new AmbientLight(); lightA.setInfluencingBounds(new BoundingSphere()); scene.addChild(lightA); DirectionalLight lightD1 = new DirectionalLight(); lightD1.setInfluencingBounds(new BoundingSphere()); Vector3f direction = new Vector3f(0.0f, 0.0f, -1.0f); direction.normalize(); lightD1.setDirection(direction); lightD1.setColor(red); scene.addChild(lightD1); PointLight lightP1 = new PointLight(); lightP1.setInfluencingBounds(new BoundingSphere()); Point3f position = new Point3f(0.0f, 0.0f, 1.0f); lightP1.setPosition(position); scene.addChild(lightP1); Background background = new Background(); background.setApplicationBounds(new BoundingSphere()); background.setColor(white); scene.addChild(background); SimpleUniverse u = new SimpleUniverse(c); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. u.getViewingPlatform().setNominalViewingTransform(); //Enable Local Eye Lighting u.getViewer().getView().setLocalEyeLightingEnable(true); u.addBranchGraph(scene); } public static void main(String argv[]) { System.out.println("This scene has a red directional light and white point light."); System.out.println("The spheres are blue (diffuse) with white specular material."); System.out.println("The red specular reflections are from the directional light."); System.out.println("The white specular reflections are from the point light."); System.out.println("The blue diffuse reflection is from the point light."); new MainFrame(new LocalEyeApp(), 256, 256); } }