Example usage for javax.media.j3d Background Background

Introduction

In this page you can find the example usage for javax.media.j3d Background Background.

Prototype

public Background() 

Source Link

Document

Constructs a Background node with default parameters.

Usage

From source file:BackgroundGeometry.java

public BranchGroup createSceneGraph() {

    // Create the root of the branch graph
    BranchGroup objRoot = new BranchGroup();

    // Create a Transformgroup to scale all objects so they
    // appear in the scene.
    TransformGroup objScale = new TransformGroup();
    Transform3D t3d = new Transform3D();
    t3d.setScale(0.4);/*from   w ww . j ava2 s  . co m*/
    objScale.setTransform(t3d);
    objRoot.addChild(objScale);

    // Create the transform group node and initialize it to the
    // identity. Enable the TRANSFORM_WRITE capability so that
    // our behavior code can modify it at runtime.
    TransformGroup objTrans = new TransformGroup();
    objScale.addChild(objTrans);

    Background bg = new Background();
    bg.setApplicationBounds(bounds);
    BranchGroup backGeoBranch = new BranchGroup();
    Sphere sphereObj = new Sphere(1.0f,
            Sphere.GENERATE_NORMALS | Sphere.GENERATE_NORMALS_INWARD | Sphere.GENERATE_TEXTURE_COORDS, 45);
    Appearance backgroundApp = sphereObj.getAppearance();
    backGeoBranch.addChild(sphereObj);
    bg.setGeometry(backGeoBranch);
    objTrans.addChild(bg);

    TextureLoader tex = new TextureLoader(bgImage, new String("RGB"), this);
    if (tex != null)
        backgroundApp.setTexture(tex.getTexture());

    Vector3f tranlation = new Vector3f(2.0f, 0.0f, 0.0f);
    Transform3D modelTransform = new Transform3D();
    Transform3D tmpTransform = new Transform3D();
    double angleInc = Math.PI / 8.0;
    double angle = 0.0;
    int numBoxes = 16;

    float scaleX[] = { 0.1f, 0.2f, 0.2f, 0.3f, 0.2f, 0.1f, 0.2f, 0.3f, 0.1f, 0.3f, 0.2f, 0.3f, 0.1f, 0.3f, 0.2f,
            0.3f };

    float scaleY[] = { 0.3f, 0.4f, 0.3f, 0.4f, 0.3f, 0.4f, 0.3f, 0.4f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f,
            0.4f };

    float scaleZ[] = { 0.3f, 0.2f, 0.1f, 0.1f, 0.3f, 0.2f, 0.1f, 0.3f, 0.3f, 0.2f, 0.1f, 0.3f, 0.3f, 0.2f, 0.1f,
            0.2f };

    Appearance a1 = new Appearance();
    Color3f eColor = new Color3f(0.0f, 0.0f, 0.0f);
    Color3f sColor = new Color3f(0.5f, 0.5f, 1.0f);
    Color3f oColor = new Color3f(0.5f, 0.5f, 0.3f);

    Material m = new Material(oColor, eColor, oColor, sColor, 100.0f);
    m.setLightingEnable(true);
    a1.setMaterial(m);

    for (int i = 0; i < numBoxes; i++, angle += angleInc) {
        modelTransform.rotY(angle);
        tmpTransform.set(tranlation);
        modelTransform.mul(tmpTransform);

        TransformGroup tgroup = new TransformGroup(modelTransform);
        objTrans.addChild(tgroup);

        tgroup.addChild(new Box(scaleX[i], scaleY[i], scaleZ[i], Box.GENERATE_NORMALS, a1));
    }

    // Shine it with two lights.
    Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
    Color3f lColor2 = new Color3f(0.2f, 0.2f, 0.1f);
    Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f);
    Vector3f lDir2 = new Vector3f(0.0f, 0.0f, -1.0f);
    DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
    DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2);
    lgt1.setInfluencingBounds(bounds);
    lgt2.setInfluencingBounds(bounds);
    objScale.addChild(lgt1);
    objScale.addChild(lgt2);

    return objRoot;
}

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From source file:LitSphereApp.java

BranchGroup createScene() {
    BranchGroup scene = new BranchGroup();

    scene.addChild(new Sphere(0.9f, Sphere.GENERATE_NORMALS, createAppearance()));

    AmbientLight lightA = new AmbientLight();
    lightA.setInfluencingBounds(new BoundingSphere());
    scene.addChild(lightA);//from   w ww.  jav a 2 s .c o m

    DirectionalLight lightD1 = new DirectionalLight();
    lightD1.setInfluencingBounds(new BoundingSphere());
    Vector3f direction1 = new Vector3f(-1.0f, -1.0f, -0.5f);
    direction1.normalize();
    lightD1.setDirection(direction1);
    lightD1.setColor(new Color3f(0.0f, 0.0f, 1.0f));
    scene.addChild(lightD1);

    DirectionalLight lightD2 = new DirectionalLight();
    lightD2.setInfluencingBounds(new BoundingSphere());
    Vector3f direction2 = new Vector3f(1.0f, -1.0f, -0.5f);
    direction2.normalize();
    lightD2.setDirection(direction2);
    lightD2.setColor(new Color3f(1.0f, 0.0f, 0.0f));
    scene.addChild(lightD2);

    Background bg = new Background();
    bg.setColor(1.0f, 1.0f, 1.0f);
    bg.setApplicationBounds(new BoundingSphere());
    scene.addChild(bg);

    return scene;
}

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From source file:AvatarTest.java

public void createBackground(Group bg) {
    // add the sky backdrop
    Background back = new Background();
    back.setApplicationBounds(getBoundingSphere());
    bg.addChild(back);//  w  ww .  ja v  a2s . c  o  m

    BranchGroup bgGeometry = new BranchGroup();

    // create an appearance and assign the texture image
    Appearance app = new Appearance();
    Texture tex = new TextureLoader("back.jpg", this).getTexture();
    app.setTexture(tex);

    Sphere sphere = new Sphere(1.0f, Primitive.GENERATE_TEXTURE_COORDS | Primitive.GENERATE_NORMALS_INWARD,
            app);

    bgGeometry.addChild(sphere);
    back.setGeometry(bgGeometry);
}

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From source file:BackgroundApp.java

public BranchGroup createSceneGraph(SimpleUniverse su) {
    // Create the root of the branch graph
    BranchGroup objRootBG = new BranchGroup();

    Vector3f translate = new Vector3f();
    Transform3D T3D = new Transform3D();

    translate.set(0.0f, -0.3f, 0.0f);/*from   w ww .  ja  va2  s  .c o  m*/
    T3D.setTranslation(translate);
    TransformGroup objRoot = new TransformGroup(T3D);
    objRootBG.addChild(objRoot);

    objRoot.addChild(createLand());

    BoundingLeaf boundingLeaf = new BoundingLeaf(new BoundingSphere());

    PlatformGeometry platformGeom = new PlatformGeometry();
    platformGeom.addChild(boundingLeaf);
    platformGeom.compile();
    su.getViewingPlatform().setPlatformGeometry(platformGeom);

    KeyNavigatorBehavior keyNavBeh = new KeyNavigatorBehavior(
            su.getViewingPlatform().getViewPlatformTransform());
    keyNavBeh.setSchedulingBoundingLeaf(boundingLeaf);
    objRootBG.addChild(keyNavBeh);

    Background background = new Background();
    background.setApplicationBounds(new BoundingSphere(new Point3d(), 1000.0));
    background.setGeometry(createBackGraph());
    objRoot.addChild(background);

    AmbientLight ambientLight = new AmbientLight();
    ambientLight.setInfluencingBounds(new BoundingSphere());
    objRootBG.addChild(ambientLight);

    return objRootBG;
}

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From source file:Text2DApp.java

public BranchGroup createSceneGraph() {

    // Create the root of the branch graph
    BranchGroup objRoot = new BranchGroup();

    // Create the transform group node and initialize it to the
    // identity. Add it to the root of the subgraph.
    TransformGroup objSpin = new TransformGroup();
    objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    objRoot.addChild(objSpin);/*w  w w  . j  a  v a 2s .  com*/

    // Create a simple Text2D leaf node, add it to the scene graph.
    Text2D text2d = new Text2D("2D text in Java 3D", new Color3f(0.9f, 1.0f, 1.0f), "Helvetica", 24,
            Font.ITALIC);

    objSpin.addChild(text2d);

    Appearance textAppear = text2d.getAppearance();

    // The following 4 lines of code (commented out) make the Text2D object
    // 2-sided.
    // This code depends on the line of code above that sets TextAppear.
    //         PolygonAttributes polyAttrib = new PolygonAttributes();
    //         polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
    //         polyAttrib.setBackFaceNormalFlip(true);
    //         textAppear.setPolygonAttributes(polyAttrib);

    // The following 12 lines of code (commented out) use the texture from
    // the previous Text2D object on another object.
    // This code depends on the line of code above that sets TextAppear.
    //         QuadArray qa = new QuadArray(4, QuadArray.COORDINATES |
    //                                         QuadArray.TEXTURE_COORDINATE_2);
    //         qa.setCoordinate(0, new Point3f(-10.0f, 1.0f, -5.0f));
    //         qa.setCoordinate(1, new Point3f(-10.0f, -1.0f, -5.0f));
    //         qa.setCoordinate(2, new Point3f(10.0f, -1.0f, -5.0f));
    //         qa.setCoordinate(3, new Point3f(10.0f, 1.0f, -5.0f));
    //         qa.setTextureCoordinate(0, new Point2f(0.0f, 1.0f));
    //         qa.setTextureCoordinate(1, new Point2f(0.0f, 0.0f));
    //         qa.setTextureCoordinate(2, new Point2f(1.0f, 0.0f));
    //         qa.setTextureCoordinate(3, new Point2f(1.0f, 1.0f));
    //
    //         objRoot.addChild(new Shape3D(qa, textAppear));

    // Create a new Behavior object that will perform the desired
    // operation on the specified transform object and add it into
    // the scene graph.
    Alpha rotationAlpha = new Alpha(-1, 8000);

    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objSpin);

    // a bounding sphere specifies a region a behavior is active
    // create a sphere centered at the origin with radius of 100
    BoundingSphere bounds = new BoundingSphere();
    rotator.setSchedulingBounds(bounds);
    objSpin.addChild(rotator);

    Background backg = new Background();
    backg.setColor(0.4f, 0.4f, 1.0f);
    backg.setApplicationBounds(new BoundingSphere());
    objRoot.addChild(backg);

    return objRoot;
}

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From source file:MaterialApp.java

public MaterialApp() {
    setLayout(new BorderLayout());
    Canvas3D c = new Canvas3D(null);
    add("Center", c);

    Color3f white = new Color3f(1.0f, 1.0f, 1.0f);
    Color3f blue = new Color3f(0.0f, 0.0f, 1.0f);

    BranchGroup scene = new BranchGroup();

    TransformGroup trans11 = createTG(-0.7f, 0.7f, -0.5f);
    scene.addChild(trans11);//from  ww  w. j  a v  a  2s.co  m
    trans11.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 0.0f)));

    TransformGroup trans12 = createTG(0.0f, 0.7f, -0.5f);
    scene.addChild(trans12);
    trans12.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1.0f)));

    TransformGroup trans13 = createTG(0.7f, 0.7f, -0.5f);
    scene.addChild(trans13);
    trans13.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 2.0f)));

    TransformGroup trans21 = createTG(-0.7f, 0.0f, -0.5f);
    scene.addChild(trans21);
    trans21.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 5.0f)));

    TransformGroup trans22 = createTG(0.0f, 0.0f, -0.5f);
    scene.addChild(trans22);
    trans22.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 10.0f)));

    TransformGroup trans23 = createTG(0.7f, 0.0f, -0.5f);
    scene.addChild(trans23);
    trans23.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 20.0f)));

    TransformGroup trans31 = createTG(-0.7f, -0.7f, -0.5f);
    scene.addChild(trans31);
    trans31.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 50.0f)));

    TransformGroup trans32 = createTG(0.0f, -0.7f, -0.5f);
    scene.addChild(trans32);
    trans32.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 100.0f)));

    TransformGroup trans33 = createTG(0.7f, -0.7f, -0.5f);
    scene.addChild(trans33);
    trans33.addChild(new Sphere(0.3f, Sphere.GENERATE_NORMALS, 60, createMatAppear(blue, white, 1000.0f)));

    AmbientLight lightA = new AmbientLight();
    lightA.setInfluencingBounds(new BoundingSphere());
    scene.addChild(lightA);

    DirectionalLight lightD1 = new DirectionalLight();
    lightD1.setInfluencingBounds(new BoundingSphere());
    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);

    Background background = new Background();
    background.setApplicationBounds(new BoundingSphere());
    background.setColor(1.0f, 1.0f, 1.0f);
    scene.addChild(background);

    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();

    // setLocalEyeViewing
    u.getViewer().getView().setLocalEyeLightingEnable(true);

    u.addBranchGraph(scene);
}

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From source file:ExBackgroundColor.java

public Group buildScene() {
    // Get the current color
    Color3f color = (Color3f) colors[currentColor].value;

    // Turn off the example headlight
    setHeadlightEnable(false);/*  ww  w .  jav  a 2s.com*/

    // Default to walk navigation
    setNavigationType(Walk);

    // Create the scene group
    Group scene = new Group();

    // BEGIN EXAMPLE TOPIC
    // Create application bounds
    BoundingSphere worldBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center
            1000.0); // Extent

    // Set the background color and its application bounds
    background = new Background();
    background.setColor(color);
    background.setCapability(Background.ALLOW_COLOR_WRITE);
    background.setApplicationBounds(worldBounds);
    scene.addChild(background);
    // END EXAMPLE TOPIC

    // Build foreground geometry
    scene.addChild(new TowerScene(this));

    return scene;
}

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From source file:ExBackgroundImage.java

public Group buildScene() {
    // Get the current image
    ImageComponent2D image = imageComponents[currentImage];

    // Turn off the example headlight
    setHeadlightEnable(false);// w ww. j a va2s . co  m

    // Default to walk navigation
    setNavigationType(Walk);

    // Build the scene root
    Group scene = new Group();

    // BEGIN EXAMPLE TOPIC
    // Create application bounds
    BoundingSphere worldBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center
            1000.0); // Extent

    // Set the background color and its application bounds
    background = new Background();
    background.setImage(image);
    background.setCapability(Background.ALLOW_IMAGE_WRITE);
    background.setApplicationBounds(worldBounds);
    scene.addChild(background);
    // END EXAMPLE TOPIC

    // Build foreground geometry
    scene.addChild(new TowerScene(this));

    return scene;
}

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From source file:ExDepthCue.java

public Group buildScene() {
    // Get the current color
    Color3f color = (Color3f) colors[currentColor].value;

    // Turn off the example headlight
    setHeadlightEnable(false);/*from   w  w  w . j  a v a2  s  .co  m*/

    // Create the scene group
    Group scene = new Group();

    // Create a switch group to hold the fog node. This enables
    // us to turn the fog node on and off via the GUI.
    fogSwitch = new Switch();
    fogSwitch.setCapability(Switch.ALLOW_SWITCH_WRITE);

    // Create influencing bounds
    Bounds worldBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center
            1000.0); // Extent

    // Set the fog color, density, and its influencing bounds
    fog = new LinearFog();
    fog.setColor(color);
    // front and back distances set below
    fog.setCapability(Fog.ALLOW_COLOR_WRITE);
    fog.setCapability(Fog.ALLOW_INFLUENCING_BOUNDS_WRITE);
    fog.setInfluencingBounds(worldBounds);
    fogSwitch.addChild(fog);
    scene.addChild(fogSwitch);
    if (depthCueOnOff)
        fogSwitch.setWhichChild(0); // on
    else
        fogSwitch.setWhichChild(Switch.CHILD_NONE); // off

    // Set the background color and its application bounds
    //   Usually, the background color should match the fog color
    //   or the results look odd.
    background = new Background();
    background.setColor(color);
    background.setApplicationBounds(worldBounds);
    background.setCapability(Background.ALLOW_COLOR_WRITE);
    scene.addChild(background);

    // Build foreground geometry
    Group content = buildIsoline();
    scene.addChild(content);

    // Automatically compute good front and back distances for
    // fog to get good depth-cueing. To do this, first get the
    // dimensions of the bounds around the content. Then,
    // set the front distance to be at the center of the content
    // (or closer by a tad) and the back distance at the front
    // distance PLUS half the depth of the content's bounding box
    BoundingSphere sampleSphere = new BoundingSphere();
    BoundingBox sampleBox = new BoundingBox();
    Bounds bounds = content.getBounds();
    double deltaDistance = 0.0;
    double centerZ = 0.0;

    if (bounds == null) {
        // No bounds available. Estimate the values knowing
        // that the above content is what it is.
        centerZ = 0.5; // 0.5 closer than true center
        deltaDistance = 2.0;
    } else if (bounds.getClass() == sampleSphere.getClass()) {
        BoundingSphere sphereBounds = (BoundingSphere) bounds;
        deltaDistance = Math.abs(sphereBounds.getRadius());
        Point3d center = new Point3d();
        sphereBounds.getCenter(center);
        centerZ = center.z + 0.5; // 0.5 closer than true center
    } else if (bounds.getClass() == sampleBox.getClass()) {
        BoundingBox boxBounds = (BoundingBox) bounds;
        Point3d p1 = new Point3d();
        Point3d p2 = new Point3d();
        boxBounds.getLower(p1);
        boxBounds.getUpper(p2);
        deltaDistance = p2.z - p1.z;
        if (deltaDistance < 0.0)
            deltaDistance *= -1.0;
        if (p1.z > p2.z)
            centerZ = p1.z - deltaDistance / 2.0;
        else
            centerZ = p2.z - deltaDistance / 2.0;
        centerZ += 0.5; // 0.5 closer than true center
    } else {
        System.err.println("Unknown bounds type");
    }

    // Set front distance to the distance from the default
    // viewing position (0,0,10) to the center of the bounds.
    fog.setFrontDistance(10.0f - (float) centerZ);

    // Set back distance to the distance from the default
    // viewing position (0,0,10) to the back of the bounds.
    fog.setBackDistance(10.0f - (float) centerZ + (float) deltaDistance);

    return scene;
}

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From source file:ExBluePrint.java

public Group buildScene() {
    // Get the current image
    ImageComponent2D image = imageComponents[currentImage];

    // Build the scene root
    Group scene = new Group();

    // BEGIN EXAMPLE TOPIC
    // Create application bounds
    BoundingSphere worldBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center
            1000.0); // Extent

    // Set the background color and its application bounds
    background = new Background();
    background.setColor(White);// ww w . ja  v a  2  s.  com
    background.setImage(image);
    background.setCapability(Background.ALLOW_IMAGE_WRITE);
    background.setApplicationBounds(worldBounds);
    scene.addChild(background);
    // END EXAMPLE TOPIC

    // Build foreground geometry
    scene.addChild(buildGadget());

    return scene;
}

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