ms3d problem

Troubleshooting graphics
1

im having a problem with my MS3D model loader, it keeps giving a null pointer exception, my model loader is for an animated model that walks, can anyone see whats wrong with it, thanks




public static Node loadModel( String modelUrl )//, String textureUrl)
{
        Node gamemap = new Node();
        URL modelURL=ForceFieldFence.class.getClassLoader().getResource(modelUrl);
      // URL textureURL=ForceFieldFence.class.getClassLoader().getResource(textureUrl);
        BinaryImporter importer = BinaryImporter.getInstance();
        //FormatConverter converter=new MilkToJme();
        MilkToJme converter=new MilkToJme();
        ByteArrayOutputStream BO=new ByteArrayOutputStream();
        try {
            converter.convert(modelURL.openStream(), BO);
            gamemap=(Node)BinaryImporter.getInstance().load(new ByteArrayInputStream(BO.toByteArray()));
            gamemap.setCullMode( SceneElement.CULL_NEVER );
            gamemap.setModelBound(new BoundingBox());
            gamemap.updateModelBound();
           
          /* Texture t = TextureManager.loadTexture(textureURL,1,100);
            //t.setWrap(Texture.WM_WRAP_S_WRAP_T);
            TextureState ts = DisplaySystem.getDisplaySystem().getRenderer().createTextureState();
            ts.setEnabled(true);
            ts.setTexture(t);
            gamemap.setRenderState(ts);*/
         
           
        } catch (IOException e) {
            e.printStackTrace();
            System.exit(0);
        }
        return gamemap;
    }
2

ok, i have changed the code around, i dont understand, it works for a 3ds models but not for an MS3D model, the error given now is that the file cannot be opened, the path is correct, did anyone have a problem with this? could there be a problem with how i have saved my animated model? I have included the code below



public static Node loadModel() {
         
         FormatConverter milktojme = new MilkToJme();  //the converter
         Node node = null; //Where to dump mesh.
         ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream();
         milktojme.setProperty("texdir","character/zombie/");//For loading the raw file
         
//          File Path for the model (dump file in toplevel of classpath)
         
         URL url = Bot.class.getClassLoader().getResource("/character/zombie/zombie03.MS3D");
         
               
         //InputStream is=null;
         try {
            milktojme.convert(url.openStream(), bytearrayoutputstream);
             //is=url.openStream();
         } catch(Exception err)  {
             System.out.println("Could not open Model file: "+err);
         }
         try {
         
             // Converts the file into a jme usable file
            // milktojme.convert(is, bytearrayoutputstream);
         
             // Used to convert the jme usable file to a TriMesh
             BinaryImporter binaryImporter = new BinaryImporter();
             ByteArrayInputStream in=new ByteArrayInputStream(bytearrayoutputstream.toByteArray());
         
             //importer returns a Loadable, cast to Node
             node = (Node)binaryImporter.load(in);
         } catch(Exception err)  {
             System.out.println("Error loading md3 model:"+err);
         }
         
//         attach node to scene graph
         //node.updateRenderState();
         return node;
   }

3

Ok, i got it working, just the model is on its side, would i have to do the same for 3ds and rotate it on its side in the 3d max application, has anyone had this prop?

4

Hi sniper



i'm very new to jme and i have a similar problem: my model loads including animation but without texture. after hours of searching in the forum I'm a bit frustrated right now. Could you post your solution please?



Besides: 3ds uses a bit a different coordinate System, so you have to translate your model after you loaded it (how this works in jme, i can't tell you yet, sorry).



Thanks in advance!

5

The MD5 loading contrib package has a method in there to rotate the loaded models up to the proper position, however I don't remember what it is off hand.  I'll let you know later today if someone hasn't already answered or you didn't grab it out of the contrib CVS.  It's a fairly simple method, but details escape me.

6

May or may not be what you're looking for:


   public static void tdsRotation(Node node){
      for( int i=0;i<node.getQuantity();i++){
         Spatial tmp = (Spatial)node.getChild(i);
         tmp.getLocalRotation().fromAngleAxis(-FastMath.PI/2, Vector3f.UNIT_X);
      }
   }