Importing from Blender issue

Troubleshooting General Help
1

Hi guys, I am importing models from Blender (.obj) to Jme using the following function



[java]



public void create3dModel(float trigger_time, String id, String type,

float x, float y, float z) {



/** update the enum type with the string read (type of created object) */

CreatedObject = PhysicalObjects.valueOf(type);



if (assetManager == null) {

System.out.println("WARNING: Asset Manager is null");

}



// create appropriate object type

switch (CreatedObject) // enum switch case

{

case CAR_F: // every spatial has 2 geometries where each has to have <<< 2 geom object

// one material making the drive one node with 2

// geometries



System.out.println("Creating F Car: " + type

  • " now creating createDrive event: ");

    mySpatial = assetManager.loadModel("/Models/F_Car.obj");

    break;



    case KEEP_POD:



    System.out.println("Creating Keep Pod: " + type + "…"); <<<< a single geom object

    mySpatial = assetManager.loadModel("/Models/F_pod.obj");

    break;



    }





    drive_node = (Node) mySpatial;

    drive_node.setLocalTranslation(x, y, z); // sets the 3d translation

    drive_node.setName(id);

    rootNode.attachChild(mySpatial); // attach to root node to make visible



    }



    [/java]



    As everything works fine, I am limited by the fact that my model can only be formed out of two geometries (in Blender language: 2 separate materials). Otherwise, if I want to import a single geom object (e.g. a cube) , I get the following error:



    [java]

    SEVERE: Uncaught exception thrown in Thread[LWJGL Renderer Thread,5,main]

    com.jme3.asset.AssetNotFoundException: /Models/F_pod.obj

    at com.jme3.asset.DesktopAssetManager.loadAsset(DesktopAssetManager.java:268)

    at com.jme3.asset.DesktopAssetManager.loadModel(DesktopAssetManager.java:408)

    at com.jme3.asset.DesktopAssetManager.loadModel(DesktopAssetManager.java:418)

    at com.garnaout.sim.animation.Jme3Cinematics.create3dModel(Jme3Cinematics.java:772)

    at com.garnaout.sim.Jme3animation.CreateTrack.<init>(CreateTrack.java:68)

    at com.garnaout.sim.animation.Jme3Cinematics.createDrives(Jme3Cinematics.java:729)

    at com.garnaout.sim.animation.driveFunctions.Jme3CreateEvent.run(Jme3CreateEvent.java:88)

    at com.garnaout.sim.animation.Jme3Adapter.readTraceFile(Jme3Adapter.java:187)

    at com.garnaout.sim.animation.Jme3Adapter.<init>(Jme3Adapter.java:82)

    at com.garnaout.sim.animation.Jme3Cinematics.readFile(Jme3Cinematics.java:345)

    at com.garnaout.sim.animation.Jme3Cinematics.simpleInitApp(Jme3Cinematics.java:172)

    at com.jme3.app.SimpleApplication.initialize(SimpleApplication.java:231)

    at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(LwjglAbstractDisplay.java:129)

    at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:205)

    at java.lang.Thread.run(Thread.java:619)

    Feb 1, 2012 12:05:31 PM com.jme3.renderer.lwjgl.LwjglRenderer cleanup

    INFO: Deleting objects and invalidating state

    Feb 1, 2012 12:05:31 PM com.jme3.input.lwjgl.LwjglMouseInput destroy

    INFO: Mouse destroyed.

    Feb 1, 2012 12:05:31 PM com.jme3.input.lwjgl.LwjglKeyInput destroy

    INFO: Keyboard destroyed.

    Feb 1, 2012 12:05:31 PM com.jme3.system.lwjgl.LwjglAbstractDisplay deinitInThread

    INFO: Display destroyed.

    [/java]





    Any ideas on what am I doing wrong and how to fix this?
2

Eclipse? assets folder not on class path?

3

then why would it work if I add another geom to it. Say in Blender I add another Mesh +material to that obj and import it, it works fine…

4

is it called pod? or Pod?

5

It is case sensitive.

6

I think i missed an important part of the log:

[java]

INFO: Child (Box) attached to this node (Root Node)

Feb 1, 2012 3:19:48 PM com.jme3.app.Application handleError

SEVERE: Uncaught exception thrown in Thread[LWJGL Renderer Thread,5,main]

com.jme3.asset.AssetNotFoundException: /Models/F_pod.obj[/java]





something to do with this part of the code that wants the spatial to have two geometries and not one. Again the interesting part that if I add another mesh to it in imports it just fine.



[java]

drive_node = (Node) mySpatial;

drive_node.setLocalTranslation(x, y, z); // sets the 3d translation

drive_node.setName(id);

rootNode.attachChild(mySpatial); // attach to root node to make visible

[/java]

7

Maybe the file is divided into multiple somehow or the texture name is referenced differently? No idea really… Didn’t use the obj importer much.

8

could you upload your problematic model somewhere so we could try to load it?



maybe there is an issue with the obj loader