Examples with DistanceLodCalculator com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator used on opensource projects

Example 11 with DistanceLodCalculator

use of com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator in project jmonkeyengine by jMonkeyEngine.

the class TerrainGridAlphaMapTest method simpleInitApp.

@Override
public void simpleInitApp() {
    DirectionalLight sun = new DirectionalLight();
    sun.setColor(ColorRGBA.White);
    sun.setDirection(new Vector3f(-1, -1, -1).normalizeLocal());
    rootNode.addLight(sun);
    AmbientLight al = new AmbientLight();
    al.setColor(ColorRGBA.White.mult(1.3f));
    rootNode.addLight(al);
    File file = new File("TerrainGridTestData.zip");
    if (!file.exists()) {
        assetManager.registerLocator("https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/jmonkeyengine/TerrainGridTestData.zip", HttpZipLocator.class);
    } else {
        assetManager.registerLocator("TerrainGridTestData.zip", ZipLocator.class);
    }
    this.flyCam.setMoveSpeed(100f);
    ScreenshotAppState state = new ScreenshotAppState();
    this.stateManager.attach(state);
    // TERRAIN TEXTURE material
    material = new Material(assetManager, "Common/MatDefs/Terrain/TerrainLighting.j3md");
    material.setBoolean("useTriPlanarMapping", false);
    //material.setBoolean("isTerrainGrid", true);
    material.setFloat("Shininess", 0.0f);
    // GRASS texture
    Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
    grass.setWrap(WrapMode.Repeat);
    material.setTexture("DiffuseMap", grass);
    material.setFloat("DiffuseMap_0_scale", grassScale);
    // DIRT texture
    Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
    dirt.setWrap(WrapMode.Repeat);
    material.setTexture("DiffuseMap_1", dirt);
    material.setFloat("DiffuseMap_1_scale", dirtScale);
    // ROCK texture
    Texture rock = assetManager.loadTexture("Textures/Terrain/splat/road.jpg");
    rock.setWrap(WrapMode.Repeat);
    material.setTexture("DiffuseMap_2", rock);
    material.setFloat("DiffuseMap_2_scale", rockScale);
    // WIREFRAME material
    matWire = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    matWire.getAdditionalRenderState().setWireframe(true);
    matWire.setColor("Color", ColorRGBA.Green);
    this.base = new FractalSum();
    this.base.setRoughness(0.7f);
    this.base.setFrequency(1.0f);
    this.base.setAmplitude(1.0f);
    this.base.setLacunarity(2.12f);
    this.base.setOctaves(8);
    this.base.setScale(0.02125f);
    this.base.addModulator(new NoiseModulator() {

        @Override
        public float value(float... in) {
            return ShaderUtils.clamp(in[0] * 0.5f + 0.5f, 0, 1);
        }
    });
    FilteredBasis ground = new FilteredBasis(this.base);
    this.perturb = new PerturbFilter();
    this.perturb.setMagnitude(0.119f);
    this.therm = new OptimizedErode();
    this.therm.setRadius(5);
    this.therm.setTalus(0.011f);
    this.smooth = new SmoothFilter();
    this.smooth.setRadius(1);
    this.smooth.setEffect(0.7f);
    this.iterate = new IterativeFilter();
    this.iterate.addPreFilter(this.perturb);
    this.iterate.addPostFilter(this.smooth);
    this.iterate.setFilter(this.therm);
    this.iterate.setIterations(1);
    ground.addPreFilter(this.iterate);
    this.terrain = new TerrainGrid("terrain", 33, 257, new FractalTileLoader(ground, 256));
    this.terrain.setMaterial(this.material);
    this.terrain.setLocalTranslation(0, 0, 0);
    this.terrain.setLocalScale(2f, 1f, 2f);
    this.rootNode.attachChild(this.terrain);
    TerrainLodControl control = new TerrainGridLodControl(this.terrain, this.getCamera());
    // patch size, and a multiplier
    control.setLodCalculator(new DistanceLodCalculator(33, 2.7f));
    this.terrain.addControl(control);
    final BulletAppState bulletAppState = new BulletAppState();
    stateManager.attach(bulletAppState);
    this.getCamera().setLocation(new Vector3f(0, 256, 0));
    this.viewPort.setBackgroundColor(new ColorRGBA(0.7f, 0.8f, 1f, 1f));
    if (usePhysics) {
        CapsuleCollisionShape capsuleShape = new CapsuleCollisionShape(0.5f, 1.8f, 1);
        player3 = new CharacterControl(capsuleShape, 0.5f);
        player3.setJumpSpeed(20);
        player3.setFallSpeed(10);
        player3.setGravity(10);
        player3.setPhysicsLocation(new Vector3f(cam.getLocation().x, 256, cam.getLocation().z));
        bulletAppState.getPhysicsSpace().add(player3);
    }
    terrain.addListener(new TerrainGridListener() {

        public void gridMoved(Vector3f newCenter) {
        }

        public void tileAttached(Vector3f cell, TerrainQuad quad) {
            Texture alpha = null;
            try {
                alpha = assetManager.loadTexture("TerrainAlphaTest/alpha_" + (int) cell.x + "_" + (int) cell.z + ".png");
            } catch (Exception e) {
                alpha = assetManager.loadTexture("TerrainAlphaTest/alpha_default.png");
            }
            quad.getMaterial().setTexture("AlphaMap", alpha);
            if (usePhysics) {
                quad.addControl(new RigidBodyControl(new HeightfieldCollisionShape(quad.getHeightMap(), terrain.getLocalScale()), 0));
                bulletAppState.getPhysicsSpace().add(quad);
            }
            updateMarkerElevations();
        }

        public void tileDetached(Vector3f cell, TerrainQuad quad) {
            if (usePhysics) {
                if (quad.getControl(RigidBodyControl.class) != null) {
                    bulletAppState.getPhysicsSpace().remove(quad);
                    quad.removeControl(RigidBodyControl.class);
                }
            }
            updateMarkerElevations();
        }
    });
    this.initKeys();
    markers = new Node();
    rootNode.attachChild(markers);
    createMarkerPoints(1);
}

Example 12 with DistanceLodCalculator

use of com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator in project jmonkeyengine by jMonkeyEngine.

the class TerrainGridTest method simpleInitApp.

@Override
public void simpleInitApp() {
    File file = new File("TerrainGridTestData.zip");
    if (!file.exists()) {
        assetManager.registerLocator("https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/jmonkeyengine/TerrainGridTestData.zip", HttpZipLocator.class);
    } else {
        assetManager.registerLocator("TerrainGridTestData.zip", ZipLocator.class);
    }
    this.flyCam.setMoveSpeed(100f);
    ScreenshotAppState state = new ScreenshotAppState();
    this.stateManager.attach(state);
    // TERRAIN TEXTURE material
    this.mat_terrain = new Material(this.assetManager, "Common/MatDefs/Terrain/HeightBasedTerrain.j3md");
    // Parameters to material:
    // regionXColorMap: X = 1..4 the texture that should be appliad to state X
    // regionX: a Vector3f containing the following information:
    //      regionX.x: the start height of the region
    //      regionX.y: the end height of the region
    //      regionX.z: the texture scale for the region
    //  it might not be the most elegant way for storing these 3 values, but it packs the data nicely :)
    // slopeColorMap: the texture to be used for cliffs, and steep mountain sites
    // slopeTileFactor: the texture scale for slopes
    // terrainSize: the total size of the terrain (used for scaling the texture)
    // GRASS texture
    Texture grass = this.assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
    grass.setWrap(WrapMode.Repeat);
    this.mat_terrain.setTexture("region1ColorMap", grass);
    this.mat_terrain.setVector3("region1", new Vector3f(88, 200, this.grassScale));
    // DIRT texture
    Texture dirt = this.assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
    dirt.setWrap(WrapMode.Repeat);
    this.mat_terrain.setTexture("region2ColorMap", dirt);
    this.mat_terrain.setVector3("region2", new Vector3f(0, 90, this.dirtScale));
    // ROCK texture
    Texture rock = this.assetManager.loadTexture("Textures/Terrain/Rock2/rock.jpg");
    rock.setWrap(WrapMode.Repeat);
    this.mat_terrain.setTexture("region3ColorMap", rock);
    this.mat_terrain.setVector3("region3", new Vector3f(198, 260, this.rockScale));
    this.mat_terrain.setTexture("region4ColorMap", rock);
    this.mat_terrain.setVector3("region4", new Vector3f(198, 260, this.rockScale));
    this.mat_terrain.setTexture("slopeColorMap", rock);
    this.mat_terrain.setFloat("slopeTileFactor", 32);
    this.mat_terrain.setFloat("terrainSize", 129);
    this.terrain = new TerrainGrid("terrain", 65, 257, new ImageTileLoader(assetManager, new Namer() {

        public String getName(int x, int y) {
            return "Scenes/TerrainMountains/terrain_" + x + "_" + y + ".png";
        }
    }));
    this.terrain.setMaterial(mat_terrain);
    this.terrain.setLocalTranslation(0, 0, 0);
    this.terrain.setLocalScale(1f, 1f, 1f);
    this.rootNode.attachChild(this.terrain);
    TerrainLodControl control = new TerrainGridLodControl(this.terrain, getCamera());
    // patch size, and a multiplier
    control.setLodCalculator(new DistanceLodCalculator(65, 2.7f));
    this.terrain.addControl(control);
    final BulletAppState bulletAppState = new BulletAppState();
    stateManager.attach(bulletAppState);
    this.getCamera().setLocation(new Vector3f(0, 400, 0));
    this.getCamera().lookAt(new Vector3f(0, 0, 0), Vector3f.UNIT_Y);
    this.viewPort.setBackgroundColor(new ColorRGBA(0.7f, 0.8f, 1f, 1f));
    DirectionalLight light = new DirectionalLight();
    light.setDirection((new Vector3f(-0.5f, -1f, -0.5f)).normalize());
    rootNode.addLight(light);
    if (usePhysics) {
        CapsuleCollisionShape capsuleShape = new CapsuleCollisionShape(0.5f, 1.8f, 1);
        player3 = new CharacterControl(capsuleShape, 0.5f);
        player3.setJumpSpeed(20);
        player3.setFallSpeed(10);
        player3.setGravity(10);
        player3.setPhysicsLocation(new Vector3f(cam.getLocation().x, 256, cam.getLocation().z));
        bulletAppState.getPhysicsSpace().add(player3);
        terrain.addListener(new TerrainGridListener() {

            public void gridMoved(Vector3f newCenter) {
            }

            public void tileAttached(Vector3f cell, TerrainQuad quad) {
                while (quad.getControl(RigidBodyControl.class) != null) {
                    quad.removeControl(RigidBodyControl.class);
                }
                quad.addControl(new RigidBodyControl(new HeightfieldCollisionShape(quad.getHeightMap(), terrain.getLocalScale()), 0));
                bulletAppState.getPhysicsSpace().add(quad);
            }

            public void tileDetached(Vector3f cell, TerrainQuad quad) {
                if (quad.getControl(RigidBodyControl.class) != null) {
                    bulletAppState.getPhysicsSpace().remove(quad);
                    quad.removeControl(RigidBodyControl.class);
                }
            }
        });
    }
    this.initKeys();
}

Example 13 with DistanceLodCalculator

use of com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator in project jmonkeyengine by jMonkeyEngine.

the class TerrainTestModifyHeight method createTerrain.

private void createTerrain() {
    // First, we load up our textures and the heightmap texture for the terrain
    // TERRAIN TEXTURE material
    matTerrain = new Material(assetManager, "Common/MatDefs/Terrain/TerrainLighting.j3md");
    matTerrain.setBoolean("useTriPlanarMapping", false);
    matTerrain.setBoolean("WardIso", true);
    matTerrain.setFloat("Shininess", 0);
    // ALPHA map (for splat textures)
    matTerrain.setTexture("AlphaMap", assetManager.loadTexture("Textures/Terrain/splat/alphamap.png"));
    // GRASS texture
    Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
    grass.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap", grass);
    matTerrain.setFloat("DiffuseMap_0_scale", grassScale);
    // DIRT texture
    Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
    dirt.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_1", dirt);
    matTerrain.setFloat("DiffuseMap_1_scale", dirtScale);
    // ROCK texture
    Texture rock = assetManager.loadTexture("Textures/Terrain/splat/road.jpg");
    rock.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_2", rock);
    matTerrain.setFloat("DiffuseMap_2_scale", rockScale);
    // HEIGHTMAP image (for the terrain heightmap)
    Texture heightMapImage = assetManager.loadTexture("Textures/Terrain/splat/mountains512.png");
    AbstractHeightMap heightmap = null;
    try {
        heightmap = new ImageBasedHeightMap(heightMapImage.getImage(), 0.5f);
        heightmap.load();
        heightmap.smooth(0.9f, 1);
    } catch (Exception e) {
        e.printStackTrace();
    }
    // CREATE THE TERRAIN
    terrain = new TerrainQuad("terrain", 65, 513, heightmap.getHeightMap());
    TerrainLodControl control = new TerrainLodControl(terrain, getCamera());
    // patch size, and a multiplier
    control.setLodCalculator(new DistanceLodCalculator(65, 2.7f));
    terrain.addControl(control);
    terrain.setMaterial(matTerrain);
    terrain.setLocalTranslation(0, -100, 0);
    terrain.setLocalScale(2.5f, 0.5f, 2.5f);
    rootNode.attachChild(terrain);
}

Example 14 with DistanceLodCalculator

use of com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator in project jmonkeyengine by jMonkeyEngine.

the class TerrainTestAdvanced method simpleInitApp.

@Override
public void simpleInitApp() {
    setupKeys();
    // First, we load up our textures and the heightmap texture for the terrain
    // TERRAIN TEXTURE material
    matTerrain = new Material(assetManager, "Common/MatDefs/Terrain/TerrainLighting.j3md");
    matTerrain.setBoolean("useTriPlanarMapping", false);
    matTerrain.setFloat("Shininess", 0.0f);
    // ALPHA map (for splat textures)
    matTerrain.setTexture("AlphaMap", assetManager.loadTexture("Textures/Terrain/splat/alpha1.png"));
    matTerrain.setTexture("AlphaMap_1", assetManager.loadTexture("Textures/Terrain/splat/alpha2.png"));
    // this material also supports 'AlphaMap_2', so you can get up to 12 diffuse textures
    // HEIGHTMAP image (for the terrain heightmap)
    TextureKey hmKey = new TextureKey("Textures/Terrain/splat/mountains512.png", false);
    Texture heightMapImage = assetManager.loadTexture(hmKey);
    // DIRT texture, Diffuse textures 0 to 3 use the first AlphaMap
    Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
    dirt.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap", dirt);
    matTerrain.setFloat("DiffuseMap_0_scale", dirtScale);
    // DARK ROCK texture
    Texture darkRock = assetManager.loadTexture("Textures/Terrain/Rock2/rock.jpg");
    darkRock.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_1", darkRock);
    matTerrain.setFloat("DiffuseMap_1_scale", darkRockScale);
    // PINK ROCK texture
    Texture pinkRock = assetManager.loadTexture("Textures/Terrain/Rock/Rock.PNG");
    pinkRock.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_2", pinkRock);
    matTerrain.setFloat("DiffuseMap_2_scale", pinkRockScale);
    // RIVER ROCK texture, this texture will use the next alphaMap: AlphaMap_1
    Texture riverRock = assetManager.loadTexture("Textures/Terrain/Pond/Pond.jpg");
    riverRock.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_3", riverRock);
    matTerrain.setFloat("DiffuseMap_3_scale", riverRockScale);
    // GRASS texture
    Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
    grass.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_4", grass);
    matTerrain.setFloat("DiffuseMap_4_scale", grassScale);
    // BRICK texture
    Texture brick = assetManager.loadTexture("Textures/Terrain/BrickWall/BrickWall.jpg");
    brick.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_5", brick);
    matTerrain.setFloat("DiffuseMap_5_scale", brickScale);
    // ROAD texture
    Texture road = assetManager.loadTexture("Textures/Terrain/splat/road.jpg");
    road.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("DiffuseMap_6", road);
    matTerrain.setFloat("DiffuseMap_6_scale", roadScale);
    // diffuse textures 0 to 3 use AlphaMap
    // diffuse textures 4 to 7 use AlphaMap_1
    // diffuse textures 8 to 11 use AlphaMap_2
    // NORMAL MAPS
    Texture normalMapDirt = assetManager.loadTexture("Textures/Terrain/splat/dirt_normal.png");
    normalMapDirt.setWrap(WrapMode.Repeat);
    Texture normalMapPinkRock = assetManager.loadTexture("Textures/Terrain/Rock/Rock_normal.png");
    normalMapPinkRock.setWrap(WrapMode.Repeat);
    Texture normalMapGrass = assetManager.loadTexture("Textures/Terrain/splat/grass_normal.jpg");
    normalMapGrass.setWrap(WrapMode.Repeat);
    Texture normalMapRoad = assetManager.loadTexture("Textures/Terrain/splat/road_normal.png");
    normalMapRoad.setWrap(WrapMode.Repeat);
    matTerrain.setTexture("NormalMap", normalMapDirt);
    matTerrain.setTexture("NormalMap_1", normalMapPinkRock);
    matTerrain.setTexture("NormalMap_2", normalMapPinkRock);
    matTerrain.setTexture("NormalMap_4", normalMapGrass);
    matTerrain.setTexture("NormalMap_6", normalMapRoad);
    // WIREFRAME material (used to debug the terrain, only useful for this test case)
    matWire = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    matWire.getAdditionalRenderState().setWireframe(true);
    matWire.setColor("Color", ColorRGBA.Green);
    createSky();
    // CREATE HEIGHTMAP
    AbstractHeightMap heightmap = null;
    try {
        heightmap = new ImageBasedHeightMap(heightMapImage.getImage(), 0.3f);
        heightmap.load();
        heightmap.smooth(0.9f, 1);
    } catch (Exception e) {
        e.printStackTrace();
    }
    /*
         * Here we create the actual terrain. The tiles will be 65x65, and the total size of the
         * terrain will be 513x513. It uses the heightmap we created to generate the height values.
         */
    /**
         * Optimal terrain patch size is 65 (64x64).
         * The total size is up to you. At 1025 it ran fine for me (200+FPS), however at
         * size=2049 it got really slow. But that is a jump from 2 million to 8 million triangles...
         */
    //, new LodPerspectiveCalculatorFactory(getCamera(), 4)); // add this in to see it use entropy for LOD calculations
    terrain = new TerrainQuad("terrain", 65, 513, heightmap.getHeightMap());
    TerrainLodControl control = new TerrainLodControl(terrain, getCamera());
    // patch size, and a multiplier
    control.setLodCalculator(new DistanceLodCalculator(65, 2.7f));
    terrain.addControl(control);
    terrain.setMaterial(matTerrain);
    terrain.setModelBound(new BoundingBox());
    terrain.updateModelBound();
    terrain.setLocalTranslation(0, -100, 0);
    terrain.setLocalScale(1f, 1f, 1f);
    rootNode.attachChild(terrain);
    //Material debugMat = assetManager.loadMaterial("Common/Materials/VertexColor.j3m");
    //terrain.generateDebugTangents(debugMat);
    DirectionalLight light = new DirectionalLight();
    light.setDirection((new Vector3f(-0.1f, -0.1f, -0.1f)).normalize());
    rootNode.addLight(light);
    cam.setLocation(new Vector3f(0, 10, -10));
    cam.lookAtDirection(new Vector3f(0, -1.5f, -1).normalizeLocal(), Vector3f.UNIT_Y);
    flyCam.setMoveSpeed(400);
    rootNode.attachChild(createAxisMarker(20));
}

Example 15 with DistanceLodCalculator

use of com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator in project jmonkeyengine by jMonkeyEngine.

the class TerrainTestCollision method simpleInitApp.

@Override
public void simpleInitApp() {
    bulletAppState = new BulletAppState();
    bulletAppState.setThreadingType(BulletAppState.ThreadingType.PARALLEL);
    stateManager.attach(bulletAppState);
    setupKeys();
    matRock = new Material(assetManager, "Common/MatDefs/Terrain/Terrain.j3md");
    matRock.setTexture("Alpha", assetManager.loadTexture("Textures/Terrain/splat/alphamap.png"));
    Texture heightMapImage = assetManager.loadTexture("Textures/Terrain/splat/mountains512.png");
    Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
    grass.setWrap(WrapMode.Repeat);
    matRock.setTexture("Tex1", grass);
    matRock.setFloat("Tex1Scale", 64f);
    Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
    dirt.setWrap(WrapMode.Repeat);
    matRock.setTexture("Tex2", dirt);
    matRock.setFloat("Tex2Scale", 32f);
    Texture rock = assetManager.loadTexture("Textures/Terrain/splat/road.jpg");
    rock.setWrap(WrapMode.Repeat);
    matRock.setTexture("Tex3", rock);
    matRock.setFloat("Tex3Scale", 128f);
    matWire = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    matWire.getAdditionalRenderState().setWireframe(true);
    matWire.setColor("Color", ColorRGBA.Green);
    AbstractHeightMap heightmap = null;
    try {
        heightmap = new ImageBasedHeightMap(heightMapImage.getImage(), 0.25f);
        heightmap.load();
    } catch (Exception e) {
    }
    terrain = new TerrainQuad("terrain", 65, 513, heightmap.getHeightMap());
    TerrainLodControl control = new TerrainLodControl(terrain, getCamera());
    // patch size, and a multiplier
    control.setLodCalculator(new DistanceLodCalculator(65, 2.7f));
    terrain.addControl(control);
    terrain.setMaterial(matRock);
    terrain.setLocalScale(new Vector3f(2, 2, 2));
    // unlock it so we can edit the height
    terrain.setLocked(false);
    rootNode.attachChild(terrain);
    /**
         * Create PhysicsRigidBodyControl for collision
         */
    terrain.addControl(new RigidBodyControl(0));
    bulletAppState.getPhysicsSpace().addAll(terrain);
    // let them drop from the sky
    for (int i = 0; i < 5; i++) {
        float r = (float) (8 * Math.random());
        Geometry sphere = new Geometry("cannonball", new Sphere(10, 10, r));
        sphere.setMaterial(matWire);
        // random position
        float x = (float) (20 * Math.random()) - 40;
        // random position
        float y = (float) (20 * Math.random()) - 40;
        // random position
        float z = (float) (20 * Math.random()) - 40;
        sphere.setLocalTranslation(new Vector3f(x, 100 + y, z));
        sphere.addControl(new RigidBodyControl(new SphereCollisionShape(r), 2));
        rootNode.attachChild(sphere);
        bulletAppState.getPhysicsSpace().add(sphere);
    }
    collisionBox = new Geometry("collisionBox", new Box(2, 2, 2));
    collisionBox.setModelBound(new BoundingBox());
    collisionBox.setLocalTranslation(new Vector3f(20, 95, 30));
    collisionBox.setMaterial(matWire);
    rootNode.attachChild(collisionBox);
    selectedCollisionObject = collisionBox;
    DirectionalLight dl = new DirectionalLight();
    dl.setDirection(new Vector3f(1, -0.5f, -0.1f).normalizeLocal());
    dl.setColor(new ColorRGBA(0.50f, 0.40f, 0.50f, 1.0f));
    rootNode.addLight(dl);
    cam.setLocation(new Vector3f(0, 25, -10));
    cam.lookAtDirection(new Vector3f(0, -1, 0).normalizeLocal(), Vector3f.UNIT_Y);
}