/*
* 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);
}
}
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