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LightScopeApp creates a scene that is paritally light

/*  *      LightScopeApp.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 application demonstrates the use of scoping for controlling  * the influence of lights.  *  * This applicaion is not necessarilly a demonstration of good  * program design or coding.  *  * 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.GeometryArray; import javax.media.j3d.Material; import javax.media.j3d.PointLight; 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.TriangleStripArray; 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.Box; import com.sun.j3d.utils.universe.SimpleUniverse; /**  * LightScopeApp creates a scene that is paritally light by a light using the  * scoping feature.  */ public class LightScopeApp extends Applet {   Appearance createMaterialAppearance(Color3f color) {     Appearance appear = new Appearance();     Material material = new Material();     material.setDiffuseColor(color);     material.setShininess(50.0f);     appear.setMaterial(material);     return appear;   }   Shape3D createXZPlane(Point3f p0, Point3f p1, Point3f p2, Point3f p3) {     Shape3D plane = new Shape3D();     QuadArray planeGeom = new QuadArray(4, QuadArray.COORDINATES         | QuadArray.NORMALS);     planeGeom.setCoordinate(0, p0);     planeGeom.setCoordinate(1, p1);     planeGeom.setCoordinate(2, p2);     planeGeom.setCoordinate(3, p3);     Vector3f norm = new Vector3f(0.0f, 1.0f, 0.0f);     planeGeom.setNormal(0, norm);     planeGeom.setNormal(1, norm);     planeGeom.setNormal(2, norm);     planeGeom.setNormal(3, norm);     plane.setGeometry(planeGeom);     return plane;   }   Shape3D createLampShape() {     Shape3D lamp = new Shape3D();     int stripCounts[] = { 10, 10 };     TriangleStripArray lampGeom = new TriangleStripArray(20,         GeometryArray.COORDINATES | GeometryArray.NORMALS, stripCounts);     lampGeom.setCoordinate(0, new Point3f(-0.01f, 0.9f, 0.01f));     lampGeom.setCoordinate(1, new Point3f(-0.01f, 0.0f, 0.01f));     lampGeom.setCoordinate(2, new Point3f(0.01f, 0.9f, 0.01f));     lampGeom.setCoordinate(3, new Point3f(0.01f, 0.0f, 0.01f));     lampGeom.setCoordinate(4, new Point3f(0.01f, 0.9f, -0.01f));     lampGeom.setCoordinate(5, new Point3f(0.01f, 0.0f, -0.01f));     lampGeom.setCoordinate(6, new Point3f(-0.01f, 0.9f, -0.01f));     lampGeom.setCoordinate(7, new Point3f(-0.01f, 0.0f, -0.01f));     lampGeom.setCoordinate(8, new Point3f(-0.01f, 0.9f, 0.01f));     lampGeom.setCoordinate(9, new Point3f(-0.01f, 0.0f, 0.01f));     lampGeom.setCoordinate(10, new Point3f(-0.1f, 0.9f, 0.1f));     lampGeom.setCoordinate(11, new Point3f(-0.2f, 0.5f, 0.2f));     lampGeom.setCoordinate(12, new Point3f(0.1f, 0.9f, 0.1f));     lampGeom.setCoordinate(13, new Point3f(0.2f, 0.5f, 0.2f));     lampGeom.setCoordinate(14, new Point3f(0.1f, 0.9f, -0.1f));     lampGeom.setCoordinate(15, new Point3f(0.2f, 0.5f, -0.2f));     lampGeom.setCoordinate(16, new Point3f(-0.1f, 0.9f, -0.1f));     lampGeom.setCoordinate(17, new Point3f(-0.2f, 0.5f, -0.2f));     lampGeom.setCoordinate(18, new Point3f(-0.1f, 0.9f, 0.1f));     lampGeom.setCoordinate(19, new Point3f(-0.2f, 0.5f, 0.2f));     Vector3f norm = new Vector3f(-0.7f, 0.0f, 0.7f);     lampGeom.setNormal(0, norm);     lampGeom.setNormal(1, norm);     norm.set(0.7f, 0.0f, 0.7f);     lampGeom.setNormal(2, norm);     lampGeom.setNormal(3, norm);     norm.set(0.7f, 0.0f, -0.7f);     lampGeom.setNormal(4, norm);     lampGeom.setNormal(5, norm);     norm.set(-0.7f, 0.0f, -0.7f);     lampGeom.setNormal(6, norm);     lampGeom.setNormal(7, norm);     norm.set(-0.7f, 0.0f, 0.7f);     lampGeom.setNormal(8, norm);     lampGeom.setNormal(9, norm);     norm.set(-0.7f, 0.0f, 0.7f);     lampGeom.setNormal(10, norm);     lampGeom.setNormal(11, norm);     norm.set(0.7f, 0.0f, 0.7f);     lampGeom.setNormal(12, norm);     lampGeom.setNormal(13, norm);     norm.set(0.7f, 0.0f, -0.7f);     lampGeom.setNormal(14, norm);     lampGeom.setNormal(15, norm);     norm.set(-0.7f, 0.0f, -0.7f);     lampGeom.setNormal(16, norm);     lampGeom.setNormal(17, norm);     norm.set(-0.7f, 0.0f, 0.7f);     lampGeom.setNormal(18, norm);     lampGeom.setNormal(19, norm);     lamp.setGeometry(lampGeom);     return lamp;   }   BranchGroup createScene() {     BranchGroup scene = new BranchGroup();     TransformGroup tableTG = new TransformGroup();     TransformGroup lampTG = new TransformGroup();     TransformGroup litBoxTG = new TransformGroup();     TransformGroup unLitBoxTG = new TransformGroup();     scene.addChild(tableTG);     tableTG.addChild(lampTG);     tableTG.addChild(litBoxTG);     tableTG.addChild(unLitBoxTG);     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, 1.0f, 0.0f);     Color3f green = new Color3f(0.0f, 0.0f, 1.0f);     Color3f black = new Color3f(0.0f, 0.0f, 0.0f);     Vector3f transVector = new Vector3f();     Transform3D transTransform = new Transform3D();     transVector.set(0.0f, -0.4f, 0.5f);     transTransform.setTranslation(transVector);     tableTG.setTransform(transTransform);     transVector.set(-0.4f, 0.001f, 0.1f);     transTransform.setTranslation(transVector);     lampTG.setTransform(transTransform);     transVector.set(-0.2f, 0.1f, 0.2f);     transTransform.setTranslation(transVector);     litBoxTG.setTransform(transTransform);     transVector.set(0.3f, 0.1f, -0.4f);     transTransform.setTranslation(transVector);     unLitBoxTG.setTransform(transTransform);     Shape3D tablePlane = createXZPlane(new Point3f(-1.0f, 0.0f, -1.0f),         new Point3f(-1.0f, 0.0f, 1.0f), new Point3f(1.0f, 0.0f, 1.0f),         new Point3f(1.0f, 0.0f, -1.0f));     tablePlane.setAppearance(createMaterialAppearance(white));     tableTG.addChild(tablePlane);     litBoxTG.addChild(new Box(0.1f, 0.1f, 0.1f, Box.GENERATE_NORMALS,         createMaterialAppearance(red)));     Shape3D shadowPlane = createXZPlane(new Point3f(0.1f, -0.095f, -0.1f),         new Point3f(0.1f, -0.095f, 0.1f), new Point3f(0.2f, -0.095f,             0.15f), new Point3f(0.2f, -0.095f, -0.15f));     shadowPlane.setAppearance(createMaterialAppearance(black));     litBoxTG.addChild(shadowPlane);     Appearance redGlowMat = createMaterialAppearance(red);     //    redGlowMat.getMaterial().setEmissiveColor(0.5f, 0.5f, 0.5f);     unLitBoxTG.addChild(new Box(0.1f, 0.1f, 0.1f, Box.GENERATE_NORMALS,         redGlowMat));     Shape3D lamp = createLampShape();     Appearance lampAppearance = createMaterialAppearance(blue);     PolygonAttributes polyAttrib = new PolygonAttributes();     polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);     polyAttrib.setBackFaceNormalFlip(true);     lampAppearance.setPolygonAttributes(polyAttrib);     lamp.setAppearance(lampAppearance);     lampTG.addChild(lamp);     PointLight lampLight = new PointLight();     lampLight.setPosition(0.1f, 0.5f, -0.1f);     lampLight.setInfluencingBounds(new BoundingSphere());     lampTG.addChild(lampLight);     Shape3D litPlane = createXZPlane(new Point3f(-0.4f, 0.0f, -0.4f),         new Point3f(-0.4f, 0.0f, 0.4f), new Point3f(0.4f, 0.0f, 0.4f),         new Point3f(0.4f, 0.0f, -0.4f));     litPlane.setAppearance(createMaterialAppearance(white));     lampTG.addChild(litPlane);     lampLight.addScope(lampTG);     lampLight.addScope(litBoxTG);     AmbientLight lightA = new AmbientLight();     lightA.setInfluencingBounds(new BoundingSphere());     scene.addChild(lightA);     DirectionalLight lightD1 = new DirectionalLight();     lightD1.setInfluencingBounds(new BoundingSphere());     lightD1.setColor(new Color3f(0.4f, 0.4f, 0.4f));     Vector3f lightDir = new Vector3f(-1.0f, -1.0f, -1.0f);     lightDir.normalize();     lightD1.setDirection(lightDir);     scene.addChild(lightD1);     DirectionalLight lightD2 = new DirectionalLight();     lightD2.setInfluencingBounds(new BoundingSphere());     lightD2.setColor(new Color3f(0.2f, 0.2f, 0.2f));     lightDir.set(1.0f, -1.0f, -1.0f);     lightDir.normalize();     lightD2.setDirection(lightDir);     scene.addChild(lightD2);     Background bg = new Background();     bg.setColor(1.0f, 1.0f, 1.0f);     bg.setApplicationBounds(new BoundingSphere());     scene.addChild(bg);     return scene;   }   public LightScopeApp() {     setLayout(new BorderLayout());     Canvas3D c = new Canvas3D(null);     add("Center", c);     BranchGroup scene = createScene();     scene.compile();     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 LightScopeApp(), 256, 256);   } }