Programmation des lumières
/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Novembre 2001 */
import java.applet.Applet;
import java.awt.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class SimpleLight extends Applet {
public BranchGroup createSceneGraph(SimpleUniverse u) {
BranchGroup objRoot = new BranchGroup();
BoundingSphere largeBounds;
largeBounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
BoundingSphere smallBounds;
smallBounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),0.4);
{ Vector3f ldir = new Vector3f(1.0F,1.0F,-1.0F);
Color3f lcouldl = new Color3f(1.0F,0.0F,0.0F);
DirectionalLight dl = new DirectionalLight(lcouldl,ldir);
dl.setInfluencingBounds(smallBounds);
objRoot.addChild(dl); }
{ Color3f lcoulal = new Color3f(0.2F,0.2F,0.1F);
AmbientLight al = new AmbientLight(lcoulal);
al.setInfluencingBounds(largeBounds);
objRoot.addChild(al); }
{ Point3f lpos = new Point3f(0.5F,0.0F,0.0F);
Point3f laten = new Point3f(1.0F,1.0F,1.0F);
Color3f lcoulpl = new Color3f(0.0F,1.0F,0.0F);
PointLight pl = new PointLight(lcoulpl,lpos,laten);
pl.setInfluencingBounds(largeBounds);
objRoot.addChild(pl); }
{ Point3f lpos = new Point3f(1.0F,-0.05F,0.1F);
Point3f laten = new Point3f(1.0F,0.0F,0.0F);
Color3f lcoulspl = new Color3f(0.0F,0.0F,1.0F);
Vector3f ldir = new Vector3f(-1.0F,0.0F,0.0F);
SpotLight spl = new SpotLight(lcoulspl,lpos,laten,ldir,0.06F,0.0F);
spl.setInfluencingBounds(largeBounds);
objRoot.addChild(spl); }
Appearance a = new Appearance();
Material m = new Material();
m.setDiffuseColor(1.0f,1.0f,1.0f);
m.setSpecularColor(1.0f,1.0f,1.0f);
m.setAmbientColor(1.0f,1.0f,1.0f);
m.setShininess(25.0f);
a.setMaterial(m);
{ TransformGroup objTrans = new TransformGroup();
objRoot.addChild(objTrans);
Transform3D t1 = new Transform3D();
t1.setTranslation(new Vector3d(-0.7,0.0,0.0)) ;
Transform3D t2 = new Transform3D();
t1.setRotation(new AxisAngle4d(1.0,1.0,0.0,Math.PI/5.0)) ;
t1.mul(t2) ;
objTrans.setTransform(t1);
objTrans.addChild(new Sphere(0.18F,1,100,a)); }
{ TransformGroup objTrans = new TransformGroup();
objRoot.addChild(objTrans);
Transform3D t1 = new Transform3D();
t1.setTranslation(new Vector3d(-0.25,0.0,0.0)) ;
Transform3D t2 = new Transform3D();
t1.setRotation(new AxisAngle4d(1.0,1.0,0.0,Math.PI/5.0)) ;
t1.mul(t2) ;
objTrans.setTransform(t1);
objTrans.addChild(new Cone(0.14F,0.28F,1,100,100,a)); }
{ TransformGroup objTrans = new TransformGroup();
objRoot.addChild(objTrans);
Transform3D t1 = new Transform3D();
t1.setTranslation(new Vector3d(0.25,0.0,0.0)) ;
Transform3D t2 = new Transform3D();
t1.setRotation(new AxisAngle4d(1.0,1.0,0.0,Math.PI/5.0)) ;
t1.mul(t2) ;
objTrans.setTransform(t1);
objTrans.addChild(new Cylinder(0.14F,0.28F,1,100,100,a)); }
{ TransformGroup objTrans = new TransformGroup();
objRoot.addChild(objTrans);
Transform3D t1 = new Transform3D();
t1.setTranslation(new Vector3d(0.7,0.0,0.0)) ;
Transform3D t2 = new Transform3D();
t1.setRotation(new AxisAngle4d(1.0,1.0,0.0,Math.PI/5.0)) ;
t1.mul(t2) ;
objTrans.setTransform(t1);
objTrans.addChild(new Box(0.05F,0.13F,0.22F,a)); }
objRoot.compile();
return objRoot;
}
public SimpleLight() {
setLayout(new BorderLayout());
GraphicsConfiguration config;
config = SimpleUniverse.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config);
add("Center",c);
SimpleUniverse u = new SimpleUniverse(c);
BranchGroup scene = createSceneGraph(u);
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
}
public static void main(String[] args) {
new MainFrame(new SimpleLight(),600,150);
}
}
Remarques,erreurs
nicolas.janey@univ-fcomte.fr
RETOUR