Examples of com.jme3.scene.plugins.blender.meshes.MeshHelper

Package com.jme3.scene.plugins.blender.meshes

Examples of com.jme3.scene.plugins.blender.meshes.MeshHelper

com.jme3.scene.plugins.blender.meshes.MeshHelper
A class that is used in mesh calculations. @author Marcin Roguski (Kaelthas)

    /**
     * Handles loading a single node from file.
     * @param obj the path to the object.
     **/
    public Node loadNode(String obj){
  Node node = new Node();
  try{
            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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    setPointLight(true);
    
    guiNode.detachChildNamed("Statistics View");


    camNode = new Node("Cam Node");


    flyCam.setEnabled(false);
    ChaseCamera chaseCam = new ChaseCamera(cam, camNode, inputManager);
    chaseCam.setSmoothMotion(true);
    chaseCam.setMaxDistance(100000);

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        if (path.startsWith(File.separator)) {
          relPath = path.substring(1);
        } else {
          relPath = path;
        }
        Node model = (Node) assetManager.loadModel(relPath);
        if (model == null) {
          assetLogger.modelFinished();
          logger.log(Level.SEVERE, "Couldn't load model "+path);
          return null;
        }
        Geometry modelGeom = (Geometry) model.getChild(0);


        try {
          // trows an Exception if lod is not supported
          modelGeom.setLodLevel(0);

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     * @param obj the path to the object.
     **/
    public Node loadNode(String obj){
  Node node = new Node();
  try{
            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());

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        app.start();
    }


    @Override
    public void simpleInitApp() {
        Spatial teapot = assetManager.loadModel("Models/Teapot/Teapot.obj");
       
        teapot.setLocalScale(2f);
        Material mat = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
        mat.setFloat("m_Shininess", 32f);
        mat.setBoolean("m_UseMaterialColors", true);


        mat.setColor("m_Ambient",  ColorRGBA.Black);
        mat.setColor("m_Diffuse",  ColorRGBA.Green);
        mat.setColor("m_Specular", ColorRGBA.Red);
        
        teapot.setMaterial(mat);
        rootNode.attachChild(teapot);


        lightMdl = new Geometry("Light", new Sphere(10, 10, 0.1f));
        lightMdl.setMaterial(assetManager.loadMaterial("Common/Materials/RedColor.j3m"));
        lightMdl.getMesh().setStatic();

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        try {
          // trows an Exception if lod is not supported
          modelGeom.setLodLevel(0);


          LodControl control = new LodControl();
          modelGeom.addControl(control);
        } catch (Exception e) {}
        assetLogger.modelFinished();
        camNode.detachAllChildren();
        camNode.attachChild(model);

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        globalVertexReferenceMap = new HashMap<Integer, Map<Integer, List<Integer>>>(verticesAndNormals.length);
    }


    public void readMesh(Structure structure, BlenderContext blenderContext) throws BlenderFileException {
        verticesColors = this.getVerticesColors(structure, blenderContext);
        MeshHelper meshHelper = blenderContext.getHelper(MeshHelper.class);


        if (meshHelper.isBMeshCompatible(structure)) {
            this.readBMesh(structure);
        } else {
            this.readTraditionalFaces(structure);
        }
    }

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     * @return a list of vertices colors, each color belongs to a single vertex
     * @throws BlenderFileException
     *             this exception is thrown when the blend file structure is somehow invalid or corrupted
     */
    private List<byte[]> getVerticesColors(Structure meshStructure, BlenderContext blenderContext) throws BlenderFileException {
        MeshHelper meshHelper = blenderContext.getHelper(MeshHelper.class);
        Pointer pMCol = (Pointer) meshStructure.getFieldValue(meshHelper.isBMeshCompatible(meshStructure) ? "mloopcol" : "mcol");
        List<byte[]> verticesColors = null;
        // it was likely a bug in blender untill version 2.63 (the blue and red factors were misplaced in their structure)
        // so we need to put them right
        boolean useBGRA = blenderContext.getBlenderVersion() < 263;
        if (pMCol.isNotNull()) {

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        blenderContext.setBlenderKey(blenderKey);


        // creating helpers
        blenderContext.putHelper(AnimationHelper.class, new AnimationHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(TextureHelper.class, new TextureHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(MeshHelper.class, new MeshHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(ObjectHelper.class, new ObjectHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(CurvesHelper.class, new CurvesHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(LightHelper.class, new LightHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(CameraHelper.class, new CameraHelper(inputStream.getVersionNumber(), blenderContext));
        blenderContext.putHelper(ModifierHelper.class, new ModifierHelper(inputStream.getVersionNumber(), blenderContext));

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                    // parent-children relationships between nodes
                    result = new Node(name);
                    break;
                case MESH:
                    result = new Node(name);
                    MeshHelper meshHelper = blenderContext.getHelper(MeshHelper.class);
                    Pointer pMesh = (Pointer) objectStructure.getFieldValue("data");
                    List<Structure> meshesArray = pMesh.fetchData();
                    List<Geometry> geometries = meshHelper.toMesh(meshesArray.get(0), blenderContext);
                    if (geometries != null) {
                        for (Geometry geometry : geometries) {
                            result.attachChild(geometry);
                        }
                    }

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