Examples of javax.media.j3d.BranchGroup

javax.media.j3d.BranchGroup
The BranchGroup serves as a pointer to the root of a scene graph branch; BranchGroup objects are the only objects that can be inserted into a Locale's set of objects. A subgraph, rooted by a BranchGroup node can be thought of as a compile unit. The following things may be done with BranchGroup:
- A BranchGroup may be compiled by calling its compile method. This causes the entire subgraph to be compiled. If any BranchGroup nodes are contained within the subgraph, they are compiled as well (along with their descendants).
- A BranchGroup may be inserted into a virtual universe by attaching it to a Locale. The entire subgraph is then said to be live.
- A BranchGroup that is contained within another subgraph may be reparented or detached at run time if the appropriate capabilities are set.
Note that that if a BranchGroup is included in another subgraph, as a child of some other group node, it may not be attached to a Locale.

    TransformGroup tgTetrahedron = new TransformGroup(tfTetrahedron);
    tgTetrahedron.addChild(tetrahedron);




//*** The root of the scenegraph. ***
    BranchGroup theScene = new BranchGroup();


    //Add the tetrahedron to the scene.
    theScene.addChild(tgTetrahedron);


    theScene.compile();


    //Add everything to the universe.
    su.addBranchGraph(theScene);


  }

View Full Code Here


  //Some light is added to the scene here.
  public void addLight(SimpleUniverse su)
  {


    BranchGroup bgLight = new BranchGroup();


    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), Double.MAX_VALUE);
    Color3f lightColour1 = new Color3f(1.0f,1.0f,1.0f);
    Vector3f lightDir1  = new Vector3f(-1.0f,0.0f,-0.5f);
    DirectionalLight light1 = new DirectionalLight(lightColour1, lightDir1);
    light1.setInfluencingBounds(bounds);




    Vector3f lightDir2  = new Vector3f(1.0f,0.0f,0.5f);
    DirectionalLight light2 = new DirectionalLight(lightColour1, lightDir2);
    light2.setInfluencingBounds(bounds);




    bgLight.addChild(light1);
    bgLight.addChild(light2);


    su.addBranchGraph(bgLight);
  }

View Full Code Here

    tgSphere.addChild(colourSwitch);






    //Generate the scenegraph.
    BranchGroup theScene = new BranchGroup();




    //In order to allow navigation through the scene with the keyboard,
    //everything must be collected in a separate transformation group to which 
    //the KeyNavigatorBehavior is applied.
    TransformGroup tgAll = new TransformGroup();
    tgAll.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    tgAll.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgAll.addChild(tgBox);
    tgAll.addChild(tgSphere);
    tgAll.addChild(tgmCyl);
    KeyNavigatorBehavior knb = new KeyNavigatorBehavior(tgAll);
    knb.setSchedulingBounds(bounds);
    tgAll.addChild(knb);
    theScene.addChild(tgAll);


    //The PickTranslateBehavior for moving the blue cube.
    PickTranslateBehavior pickTrans = new PickTranslateBehavior(theScene,myCanvas3D,bounds);
    theScene.addChild(pickTrans);






    //This class takes care of changing the colour of the sphere when the cube touches it.
    CollisionBehaviour1 scb1 = new CollisionBehaviour1(colourSwitch,bounds);
    theScene.addChild(scb1);




    //A corresponding class for the movement(s) of the cylinder.
    Alpha[] cylAlphas= new Alpha[2];
    cylAlphas[0] = cylAlphaR;
    cylAlphas[1] = cylAlphaL;


    CollisionBehaviour2 scb2 = new CollisionBehaviour2(cyli,cylAlphas,bounds);
    theScene.addChild(scb2);






    theScene.compile();




    //Add everything to the universe.
    su.addBranchGraph(theScene);

View Full Code Here


  //Some light is added to the scene here.
  public void addLight(SimpleUniverse su)
  {


    BranchGroup bgLight = new BranchGroup();


    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
    Color3f lightColour1 = new Color3f(1.0f,1.0f,1.0f);
    Vector3f lightDir1  = new Vector3f(-1.0f,0.0f,-0.5f);
    DirectionalLight light1 = new DirectionalLight(lightColour1, lightDir1);
    light1.setInfluencingBounds(bounds);


    bgLight.addChild(light1);




    Vector3f lightDir2  = new Vector3f(1.0f,-1.0f,0.5f);
    DirectionalLight light2 = new DirectionalLight(lightColour1, lightDir2);
    light2.setInfluencingBounds(bounds);


    bgLight.addChild(light2);
    su.addBranchGraph(bgLight);


  }

View Full Code Here


  //Some light is added to the scene here.
  public void addLight(SimpleUniverse su)
  {


    BranchGroup bgLight = new BranchGroup();


    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
    Color3f lightColour1 = new Color3f(1.0f,1.0f,1.0f);
    Vector3f lightDir1  = new Vector3f(-1.0f,0.0f,-0.5f);
    DirectionalLight light1 = new DirectionalLight(lightColour1, lightDir1);
    light1.setInfluencingBounds(bounds);


    bgLight.addChild(light1);
    su.addBranchGraph(bgLight);
  }

View Full Code Here








    //*** Generate (the root of) the scenegraph. ***
    BranchGroup theScene = new BranchGroup();




    //Add the cube and the sphere to the scene.
    theScene.addChild(tgBox);
    theScene.addChild(tgSphere);




    //Generate a white background.
    Background bg = new Background(new Color3f(1.0f,1.0f,1.0f));
    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),Double.MAX_VALUE);
    bg.setApplicationBounds(bounds);
    theScene.addChild(bg);








    theScene.compile();


    //Add everything to the universe.
    su.addBranchGraph(theScene);


  }

View Full Code Here


  //The different light sources are added to the scene here.
  public void addLight(SimpleUniverse su)
  {


    BranchGroup bgLight = new BranchGroup();


    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), Double.MAX_VALUE);








    //Light no. 1: directional light.
    Color3f lightColour1 = new Color3f(0.8f, 0.8f, 0.8f);
    Vector3f lightDir1  = new Vector3f(0.0f, 4.0f, -1.0f);
    DirectionalLight light1 = new DirectionalLight(lightColour1, lightDir1);
    light1.setInfluencingBounds(bounds);
    bgLight.addChild(light1);






    //Light no. 2: a point light.
    Color3f lightColour2 = new Color3f(0.3f, 0.3f, 0.3f);
    PointLight light2 = new PointLight(lightColour2,
                                       new Point3f(1.0f,1.0f,1.0f),
                                       new Point3f(0.2f,0.01f,0.01f));
    light2.setInfluencingBounds(bounds);
    bgLight.addChild(light2);




    //Light no. 3: a spotlight.
    Color3f lightColour3 = new Color3f(0.3f, 0.3f, 0.3f);
    SpotLight light3 = new SpotLight(lightColour3,
                                     new Point3f(0.0f,0.0f,1.0f),
                                     new Point3f(0.1f,0.1f,0.01f),
                                     new Vector3f(0.0f,0.0f,-1.0f),
                                     (float) (Math.PI/20),
                                     0.0f);


    light3.setInfluencingBounds(bounds);
    bgLight.addChild(light3);






    //Light no. 4: ambient light.
    Color3f lightColour4 = new Color3f(0.2f, 0.2f, 0.2f);
    AmbientLight light4 = new AmbientLight(lightColour4);
    light4.setInfluencingBounds(bounds);
    bgLight.addChild(light4);




    su.addBranchGraph(bgLight);
  }

View Full Code Here

        Appearance lightBlueApp = new Appearance();
        setToMyDefaultAppearance(lightBlueApp, new Color3f(0.0f, 0.1f, 0.3f));
        Shape3D partOfTheObject = (Shape3D) namedObjects.get("flugdeck");
        partOfTheObject.setAppearance(lightBlueApp);


        BranchGroup theScene = new BranchGroup();


        theScene.addChild(tgObject);


        // The following four lines generate a white background.
        Background bg = new Background(new Color3f(1.0f, 1.0f, 1.0f));
        BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
                Double.MAX_VALUE);
        bg.setApplicationBounds(bounds);
        theScene.addChild(bg);


        theScene.compile();


        // Add the scene to the universe.
        su.addBranchGraph(theScene);
    }

View Full Code Here

    }


    // Some light is added to the scene here.
    public void addLight(SimpleUniverse su) {


        BranchGroup bgLight = new BranchGroup();


        BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
                100.0);
        Color3f lightColour1 = new Color3f(1.0f, 1.0f, 1.0f);
        Vector3f lightDir1 = new Vector3f(-1.0f, 0.0f, -0.5f);
        DirectionalLight light1 = new DirectionalLight(lightColour1, lightDir1);
        light1.setInfluencingBounds(bounds);


        bgLight.addChild(light1);
        su.addBranchGraph(bgLight);
    }

View Full Code Here








    //Add everything to the scene.
    BranchGroup theScene = new BranchGroup();;
    theScene.addChild(tg1);
    theScene.addChild(tg2);




    //Generate a white background.
    Background bg = new Background(new Color3f(1.0f,1.0f,1.0f));
    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),Double.MAX_VALUE);
    bg.setApplicationBounds(bounds);
    theScene.addChild(bg);




    theScene.compile();


    //Add the scene to the universe.
    su.addBranchGraph(theScene);


  }

View Full Code Here

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