protected void initScene() {
      DirectionalLight light = new DirectionalLight(0, 0, 1);

      getCurrentScene().addLight(light);
      getCurrentCamera().setPosition(0, 0, -16);

      mPlanes = new PlanesGalore();
      mMaterial = mPlanes.getMaterial();
      mMaterial.setColorInfluence(0);
      try {
        mMaterial.addTexture(new Texture("flickrPics", R.drawable.flickrpics));
      } catch (TextureException e) {
        e.printStackTrace();
      }

      mMaterialPlugin = mPlanes.getMaterialPlugin();

      mPlanes.setDoubleSided(true);
      mPlanes.setZ(4);
      addChild(mPlanes);

      Object3D empty = new Object3D();
      addChild(empty);

      CatmullRomCurve3D path = new CatmullRomCurve3D();
      path.addPoint(new Vector3(-4, 0, -20));
      path.addPoint(new Vector3(2, 1, -10));
      path.addPoint(new Vector3(-2, 0, 10));
      path.addPoint(new Vector3(0, -4, 20));
      path.addPoint(new Vector3(5, 10, 30));
      path.addPoint(new Vector3(-2, 5, 40));
      path.addPoint(new Vector3(3, -1, 60));
      path.addPoint(new Vector3(5, -1, 70));

      mCamAnim = new TranslateAnimation3D(path);
      mCamAnim.setDuration(20000);
      mCamAnim.setRepeatMode(RepeatMode.REVERSE_INFINITE);
      mCamAnim.setTransformable3D(getCurrentCamera());
      mCamAnim.setInterpolator(new AccelerateDecelerateInterpolator());
      registerAnimation(mCamAnim);
      mCamAnim.play();

      getCurrentCamera().setLookAt(new Vector3(0, 0, 30));
    }
    protected void initScene() {
      DirectionalLight light = new DirectionalLight(0, -.6f, .4f);
      light.setPower(1);
      getCurrentScene().addLight(light);

      // -- create sky sphere
      mSphere = new Sphere(400, 8, 8);
      Material sphereMaterial = new Material();
      try {
        sphereMaterial.addTexture(new Texture("skySphere", R.drawable.skysphere));
      } catch (TextureException e1) {
        e1.printStackTrace();
      }
      mSphere.setMaterial(sphereMaterial);
      mSphere.setDoubleSided(true);
      addChild(mSphere);

      try {
        // -- load gzipped serialized object
        ObjectInputStream ois;
        GZIPInputStream zis =
            new GZIPInputStream(mContext.getResources().openRawResource(R.raw.raptor));
        ois = new ObjectInputStream(zis);
        mRaptor = new Object3D((SerializedObject3D) ois.readObject());
        Material raptorMaterial = new Material();
        raptorMaterial.setDiffuseMethod(new DiffuseMethod.Lambert());
        raptorMaterial.enableLighting(true);
        raptorMaterial.addTexture(new Texture("raptorTex", R.drawable.raptor_texture));
        mRaptor.setMaterial(raptorMaterial);
        mRaptor.setScale(.5f);
        addChild(mRaptor);
      } catch (Exception e) {
        e.printStackTrace();
      }

      // -- create a bunch of cubes that will serve as orientation helpers

      mCubes = new Object3D[30];

      mRootCube = new Cube(1);
      Material rootCubeMaterial = new Material();
      rootCubeMaterial.setDiffuseMethod(new DiffuseMethod.Lambert());
      rootCubeMaterial.enableLighting(true);
      try {
        rootCubeMaterial.addTexture(new Texture("camouflage", R.drawable.camouflage));
      } catch (TextureException e) {
        e.printStackTrace();
      }
      mRootCube.setMaterial(rootCubeMaterial);
      mRootCube.setY(-1f);
      // -- similar objects with the same material, optimize
      mRootCube.setRenderChildrenAsBatch(true);
      addChild(mRootCube);
      mCubes[0] = mRootCube;

      for (int i = 1; i < mCubes.length; ++i) {
        Object3D cube = mRootCube.clone(true);
        cube.setY(-1f);
        cube.setZ(i * 30);
        mRootCube.addChild(cube);
        mCubes[i] = cube;
      }

      // -- create a chase camera
      // the first parameter is the camera offset
      // the second parameter is the interpolation factor
      ChaseCamera chaseCamera = new ChaseCamera(new Vector3(0, 3, 16), .1f);
      // -- tell the camera which object to chase
      chaseCamera.setObjectToChase(mRaptor);
      // -- set the far plane to 1000 so that we actually see the sky sphere
      chaseCamera.setFarPlane(1000);
      replaceAndSwitchCamera(chaseCamera, 0);
    }
    protected void initScene() {
      PointLight light = new PointLight();
      light.setZ(6);
      light.setPower(2);

      getCurrentScene().addLight(light);

      Texture jetTexture = new Texture("jetTexture", R.drawable.jettexture);
      SphereMapTexture sphereMapTexture =
          new SphereMapTexture("manilaSphereMapTex", R.drawable.manila_sphere_map);

      jetTexture.setInfluence(.8f);
      // -- important!
      sphereMapTexture.isEnvironmentTexture(true);
      sphereMapTexture.setInfluence(.2f);

      Object3D jet1 = null;
      // -- sphere map with texture

      try {
        Material material1 = new Material();
        material1.enableLighting(true);
        material1.setDiffuseMethod(new DiffuseMethod.Lambert());
        material1.addTexture(jetTexture);
        material1.addTexture(sphereMapTexture);

        ObjectInputStream ois;
        ois = new ObjectInputStream(mContext.getResources().openRawResource(R.raw.jet));
        jet1 = new Object3D((SerializedObject3D) ois.readObject());
        jet1.setMaterial(material1);
        jet1.setY(2.5f);
        addChild(jet1);
      } catch (Exception e) {
        e.printStackTrace();
      }

      Vector3 axis = new Vector3(2, -4, 1);
      axis.normalize();

      Animation3D anim1 = new RotateAnimation3D(axis, 360);
      anim1.setRepeatMode(RepeatMode.INFINITE);
      anim1.setDuration(12000);
      anim1.setTransformable3D(jet1);
      registerAnimation(anim1);
      anim1.play();

      sphereMapTexture = new SphereMapTexture("manilaSphereMapTex2", R.drawable.manila_sphere_map);
      sphereMapTexture.isEnvironmentTexture(true);
      sphereMapTexture.setInfluence(.5f);

      Material material2 = new Material();
      // -- important, indicate that we want to mix the sphere map with a color
      material2.enableLighting(true);
      material2.setDiffuseMethod(new DiffuseMethod.Lambert());
      try {
        material2.addTexture(sphereMapTexture);
      } catch (TextureException e) {
        e.printStackTrace();
      }
      material2.setColorInfluence(.5f);

      Object3D jet2 = jet1.clone(false);
      jet2.setMaterial(material2);
      // -- also specify a color
      jet2.setColor(0xff666666);
      jet2.setY(-2.5f);
      addChild(jet2);

      Animation3D anim2 = new RotateAnimation3D(axis, -360);
      anim2.setRepeatMode(RepeatMode.INFINITE);
      anim2.setDuration(12000);
      anim2.setTransformable3D(jet2);
      registerAnimation(anim2);
      anim2.play();

      getCurrentCamera().setPosition(0, 0, 14);
    }
    public void initScene() {
      //
      // -- Pack all textures in the "assets/atlas" folder into an 1024x1024 atlas
      // -- this should be used to simplify implementation of multiple textures
      // -- and to reduce texture binding calls to the GPU for increased performance
      //
      mAtlas = new TexturePacker(mContext).packTexturesFromAssets(1024, 1024, 0, false, "atlas");

      mAtlasMaterial = new Material();
      mSphereMaterial = new Material();
      mCubeMaterial = new Material();
      mPlaneMaterial = new Material();

      try {
        //
        // -- Add the entire atlas to a material so it can be shown in the example
        // -- this is not necessary in typical use cases
        //
        mAtlasMaterial.addTexture(new Texture("atlasTexture", mAtlas.getPages()[0]));
        mAtlasMaterial.setColorInfluence(0);
        //
        // -- Add each target texture to the material
        // -- they are pulled from the atlas by their original resource name
        //
        mSphereMaterial.addTexture(new Texture("earthtruecolor_nasa_big", mAtlas));
        mSphereMaterial.setColorInfluence(0);
        mCubeMaterial.addTexture(new Texture("camden_town_alpha", mAtlas));
        mCubeMaterial.setColorInfluence(0);
        mPlaneMaterial.addTexture(new Texture("rajawali", mAtlas));
        mPlaneMaterial.setColorInfluence(0);
      } catch (TextureException e) {
        e.printStackTrace();
      }

      //
      // -- Show the full atlas for demonstration purposes
      //
      mAtlasPlane = new Plane(Axis.Z);
      mAtlasPlane.setMaterial(mAtlasMaterial);
      mAtlasPlane.setY(1);
      addChild(mAtlasPlane);

      mTileSphere = new Sphere(.35f, 20, 20);
      mTileSphere.setMaterial(mAtlasMaterial);
      //
      // -- The method 'setAtlasTile' is used to scale the UVs of the target object
      // -- so that the appropriate image within the atlas is displayed
      //
      mTileSphere.setAtlasTile("earthtruecolor_nasa_big", mAtlas);
      mTileSphere.setPosition(0, -.1f, 0);
      addChild(mTileSphere);

      mTileCube = new Cube(.5f);
      mTileCube.setMaterial(mAtlasMaterial);
      mTileCube.setAtlasTile("camden_town_alpha", mAtlas);
      mTileCube.setPosition(-.5f, -1f, 0);
      mTileCube.setRotX(-1);
      addChild(mTileCube);

      mTilePlane = new Plane(.6f, .6f, 1, 1);
      mTilePlane.setMaterial(mAtlasMaterial);
      mTilePlane.setAtlasTile("rajawali", mAtlas);
      mTilePlane.setPosition(.5f, -1f, 0);
      addChild(mTilePlane);
    }