Java tutorial
/* * LitPlaneApp.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 absence of automatic shadowing * in Java 3D. The scene has a sphere above a plane lit from * above. Theer is no shadow of the sphere on the plane. * * Note that no real time 3D graphics API provides automatic * shadowing. * * 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.BoundingSphere; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.DirectionalLight; import javax.media.j3d.Geometry; import javax.media.j3d.GeometryArray; import javax.media.j3d.Material; import javax.media.j3d.QuadArray; import javax.media.j3d.Shape3D; import javax.vecmath.Color3f; import javax.vecmath.Point3d; 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; public class LitPlaneApp extends Applet { public class LitPlane extends Shape3D { LitPlane() { this.setGeometry(createGeometry()); this.setAppearance(createAppearance()); } Geometry createGeometry() { QuadArray plane = new QuadArray(4, GeometryArray.COORDINATES | GeometryArray.NORMALS); Point3f p = new Point3f(-1.0f, -0.5f, -1.0f); plane.setCoordinate(0, p); p.set(-1.0f, -0.5f, 1.0f); plane.setCoordinate(1, p); p.set(1.0f, -0.5f, 1.0f); plane.setCoordinate(2, p); p.set(1.0f, -0.5f, -1.0f); plane.setCoordinate(3, p); Vector3f n = new Vector3f(0.0f, 1.0f, 0.0f); plane.setNormal(0, n); plane.setNormal(1, n); plane.setNormal(2, n); plane.setNormal(3, n); return plane; } Appearance createAppearance() { Appearance appear = new Appearance(); Material material = new Material(); // make modifications to default material properties appear.setMaterial(material); return appear; } } // end of LitPlane class public LitPlaneApp() { setLayout(new BorderLayout()); Canvas3D c = new Canvas3D(null); add("Center", c); BranchGroup scene = new BranchGroup(); Shape3D plane = new LitPlane(); scene.addChild(new LitPlane()); scene.addChild(new Sphere(0.5f, Sphere.GENERATE_NORMALS, plane.getAppearance())); AmbientLight lightA = new AmbientLight(); lightA.setInfluencingBounds(new BoundingSphere()); scene.addChild(lightA); DirectionalLight lightD1 = new DirectionalLight(); lightD1.setInfluencingBounds(new BoundingSphere(new Point3d(0.0, 0.5, 0.0), 0.1)); Vector3f direction = new Vector3f(-1.0f, -1.0f, -1.0f); direction.normalize(); lightD1.setDirection(direction); lightD1.setColor(new Color3f(1.0f, 1.0f, 1.0f)); scene.addChild(lightD1); 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(); u.addBranchGraph(scene); } public static void main(String argv[]) { new MainFrame(new LitPlaneApp(), 256, 256); } }