Licht.java Source code

Introduction

Here is the source code for Licht.java

Source

// From: http://www.micg.et.fh-stralsund.de/Java3D/java3D.htm#Bild1

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;

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.Material;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
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 Licht extends Applet {

    /**
     * init Methoden fur die Darstellung als Applet
     */
    public void init() {
        setLayout(new BorderLayout());
        GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
        canvas3D = new Canvas3D(config);
        add("Center", canvas3D);
        BranchGroup szene = macheSzene();
        szene.compile();
        universe = new SimpleUniverse(canvas3D);
        universe.getViewingPlatform().setNominalViewingTransform();
        universe.addBranchGraph(szene);
    }

    /**
     * Erstellt den Szenegraphen
     * 
     * @return BranchGroup
     */
    public BranchGroup macheSzene() {
        BranchGroup objWurzel = new BranchGroup();
        // Transformation, 2 Rotationen:
        Transform3D drehung = new Transform3D();
        Transform3D drehung2 = new Transform3D();
        drehung.rotX(Math.PI / 4.0d);
        drehung2.rotY(Math.PI / 5.0d);
        drehung.mul(drehung2);
        TransformGroup objDreh = new TransformGroup(drehung);

        Sphere kugel = new Sphere(0.5f, Sphere.GENERATE_NORMALS, 50, makeAppearance());
        objWurzel.addChild(kugel);
        objWurzel.addChild(objDreh);

        //directes Licht
        DirectionalLight d_Licht = new DirectionalLight();
        d_Licht.setInfluencingBounds(new BoundingSphere(new Point3d(0.0d, 0.0d, 0.0d), Double.MAX_VALUE));
        d_Licht.setColor(new Color3f(1.0f, 0.0f, 0.0f));
        Vector3f dir = new Vector3f(1.0f, 2.0f, -1.0f);
        dir.normalize();
        d_Licht.setDirection(dir);
        objWurzel.addChild(d_Licht);

        // ambient Licht
        AmbientLight a_licht = new AmbientLight();
        a_licht.setInfluencingBounds(new BoundingSphere(new Point3d(0.0f, 0.0f, 0.0f), Double.MAX_VALUE));
        a_licht.setColor(new Color3f(1.0f, 0.0f, 0.0f));
        objWurzel.addChild(a_licht);

        return objWurzel;
    }

    /**
     * Wurfeldarstellung
     * 
     * @return Appearance
     */
    private Appearance makeAppearance() {
        Appearance a = new Appearance();
        Material mat = new Material();
        mat.setShininess(50.0f);
        mat.setDiffuseColor(new Color3f(1.0f, 0.0f, 0.0f));
        mat.setSpecularColor(new Color3f(0.0f, 0.0f, 0.0f));
        a.setMaterial(mat);
        return a;
    }

    /**
     * gibt speicher frei
     */
    public void destroy() {
        universe.removeAllLocales();
    }

    public static void main(String[] args) {
        frame = new MainFrame(new Licht(), 500, 500);
        frame.setTitle("Licht");
    }

    //---- Attribute -----------------------
    private SimpleUniverse universe;

    private Canvas3D canvas3D;

    private static Frame frame;
}