Examples of com.jme3.terrain.geomipmap.TerrainQuad

com.jme3.effect.EmitterSphereShape
TerrainQuad is a heightfield-based terrain system. Heightfield terrain is fast and can render large areas, and allows for easy Level of Detail control. However it does not permit caves easily. TerrainQuad is a quad tree, meaning that the root quad has four children, and each of those children have four children. All the way down until you reach the bottom, the actual geometry, the TerrainPatches. If you look at a TerrainQuad in wireframe mode with the TerrainLODControl attached, you will see blocks that change their LOD level together; these are the TerrainPatches. The TerrainQuad is just an organizational structure for the TerrainPatches so patches that are not in the view frustum get culled quickly. TerrainQuads size are a power of 2, plus 1. So 513x513, or 1025x1025 etc. Each point in the terrain is one unit apart from its neighbour. So a 513x513 terrain will be 513 units wide and 513 units long. Patch size can be specified on the terrain. This sets how large each geometry (TerrainPatch) is. It also must be a power of 2 plus 1 so the terrain can be subdivided equally.

The height of the terrain can be modified at runtime using setHeight()

A terrain quad is a node in the quad tree of the terrain system. The root terrain quad will be the only one that receives the update() call every frame and it will determine if there has been any LOD change.
The leaves of the terrain quad tree are Terrain Patches. These have the real geometry mesh.
Heightmap coordinates start from the bottom left of the world and work towards the top right.
```
 +x ^ | ......N = length of heightmap | :     : | :     : | 0.....: +---------> +z (world coordinates) 
```
@author Brent Owens

  public static void startApp(){
    app.startCanvas();
    app.enqueue(new Callable<Void>(){
      public Void call(){
        if (app instanceof SimpleApplication){
          SimpleApplication simpleApp = (SimpleApplication) app;
          simpleApp.getFlyByCamera().setDragToRotate(true);
          String assdir =  new File(workspace).getAbsolutePath();
          app.setAssetsPath(assdir);
        }
        return null;
      }

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     * Attaches Statistics View to guiNode and displays it on the screen
     * above FPS statistics line.
     *
     */
    public void loadStatsView() {
        statsView = new StatsView("Statistics View", assetManager, renderer.getStatistics());
//         move it up so it appears above fps text
        statsView.setLocalTranslation(0, fpsText.getLineHeight(), 0);
        guiNode.attachChild(statsView);
    }

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        listener = new Listener();
        ar.setListener(listener);
        
        // init StateManager ----------------------------
        stateManager = new AppStateManager(this);
        
        // simple Init ----------------------------------
        guiNode.setQueueBucket(Bucket.Gui);
        guiNode.setCullHint(CullHint.Never);
        //loadFPSText();

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    private void setColor(Node node, ColorRGBA color){
  for(int i = 0; i < node.getQuantity(); i++){
      Spatial spatial = node.getChild(i);
      if(spatial instanceof Geometry){
                //Material material = new Material();
                AssetManager assetManager = JmeSystem.newAssetManager(Thread.currentThread().getContextClassLoader().getResource("com/jme3/asset/Desktop.cfg"));
                Material material = new Material(assetManager, "Common/MatDefs/Misc/SolidColor.j3md");
                material.setColor("m_Color",color);
                //Material geomMaterial = ((Geometry)spatial).getMaterial();
                spatial.setMaterial(material);
                System.out.println("Spatial: "+spatial.getName());

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     * Sets the color of the geometries of the children and home.
     * Note, this is a recursive method.
     * @param node the node that contains children
     **/
    private void setColor(Geometry geometry, ColorRGBA color){
        AssetManager assetManager = JmeSystem.newAssetManager(Thread.currentThread().getContextClassLoader().getResource("com/jme3/asset/Desktop.cfg"));
        Material material = new Material(assetManager, "Common/MatDefs/Misc/SolidColor.j3md");
        material.setColor("m_Color",color);
        geometry.setMaterial(material);
        System.out.println("Spatial: "+geometry.getName());
    }

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    //bgNode.attachChild(sky);


    sphere.updateModelBound();
    sphere.setQueueBucket(Bucket.Sky);
    Material sky = new Material(assetManager, "Common/MatDefs/Misc/Sky.j3md");
    TextureKey key = new TextureKey("Textures/Sky/Stars.dds", true);
    key.setGenerateMips(true);
    key.setAsCube(true);
    Texture tex = assetManager.loadTexture(key);
    sky.setTexture("m_Texture", tex);
    sky.setVector3("m_NormalScale", Vector3f.UNIT_XYZ);
    sphere.setMaterial(sky);
    sphere.setCullHint(Spatial.CullHint.Never);

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        // init Audio ----------------------------------
        // edited by floh -- 31/10/2011
        ar = JmeSystem.newAudioRenderer(settings);
        ar.initialize();


        listener = new Listener();
        ar.setListener(listener);
        
        // init StateManager ----------------------------
        stateManager = new AppStateManager(this);

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            Spatial spatial = assetManager.loadModel(obj);
            //Material mat = new Material(assetManager, "Common/MatDefs/Misc/ShowNormals.j3md");
            //spatial.setMaterial(mat);
            node.attachChild(spatial);


      node.setModelBound(new BoundingSphere());
      node.updateModelBound();
  } catch (Exception e) {
            e.printStackTrace();
      //logger.logp(Level.SEVERE, this.getClass().toString(),"loadNode()", "Exception", e);
      node = null;

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    entities.add(entity);
    mapNode.attachChild(entity);
  }
  
  public CollisionResults getCollisions(Ray ray) {
    CollisionResults results = new CollisionResults();
    mapNode.collideWith(ray, results);
    return results;
  }

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        flame.setSelectRandomImage(true);
        flame.setStartColor(new ColorRGBA(1f, 0.4f, 0.05f, 1f));
        flame.setEndColor(new ColorRGBA(.4f, .22f, .12f, 0f));
        flame.setStartSize(1.3f);
        flame.setEndSize(2f);
        flame.setShape(new EmitterSphereShape(Vector3f.ZERO, 1f));
        flame.setParticlesPerSec(0);
        flame.setGravity(-5f);
        flame.setLowLife(1f);
        flame.setHighLife(1f);
        flame.setInitialVelocity(new Vector3f(0, 7, 0));

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clj3D.Viewer

clj3D.Viewer$AppActionListener

com.jme3.bounding.BoundingBox

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com.jme3.math.Vector2f

com.jme3.math.Vector3f

com.jme3.scene.Geometry

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