.obj load errors

Troubleshooting General Help
1

I keep getting the same null pointer exception when trying to convert a .obj file.



java.lang.NullPointerException

at com.jmex.model.converters.ObjToJme$MaterialGrouping.<init>(ObjToJme.java:465)

at com.jmex.model.converters.ObjToJme.convert(ObjToJme.java:140)

at org.sharedmemory.client.ModelTest.<init>(ModelTest.java:82)

at org.sharedmemory.client.ModelTest.main(ModelTest.java:155)



At first, I thought it was a problem with my source (zbrush) but I have tried several models now that all load fine in several editors.



The actual code to do the convertion is as simple as it can be:



ObjToJme converter=new ObjToJme();

URL objFile = new URL("file:///Users/kapper/code/jmegame/data/sample.obj");

ByteArrayOutputStream out = new ByteArrayOutputStream();

converter.convert(objFile.openStream(), out);



Anybody have any ideas about how to solve this?

2

Which version of jME are you using?  In my source, that line would indicate the renderer was null.  This might mean you've set your display but have not created a window/canvas yet?

3

Thanks! Problem solved… I didn't realize the conversion util uses the render system, but I guess it makes sense to implement it by building a model from an obj file and then serializing it afterwards :slight_smile:



(oh, and I'm using the latest version from the google code repository)