Hi Sean, for me the code for 3d display is not working anymore. Before the update I was able to display a scene but was not able to change colors. After the update I get the exception: Exception in thread "AWT-EventQueue-0" javax.media.j3d.RestrictedAccessException: Cannot modify capability bits on a live or compiled object at javax.media.j3d.SceneGraphObject.setCapability(SceneGraphObject.java:101) at sim.portrayal3d.SimplePortrayal3D.setPickableFlags(SimplePortrayal3D.java:235) at sim.portrayal3d.SimplePortrayal3D.setPickableFlags(SimplePortrayal3D.java:227) at sim.portrayal3d.simple.PrimitivePortrayal3D.getModel(PrimitivePortrayal3D.java:167) at sim.portrayal3d.SparseFieldPortrayal3D.wrapModelForNewObject(SparseFieldPortrayal3D.java:77) at sim.portrayal3d.SparseFieldPortrayal3D.updateModel(SparseFieldPortrayal3D.java:157) at sim.portrayal3d.FieldPortrayal3D.getModel(FieldPortrayal3D.java:182) at sim.display3d.Display3D.updateSceneGraph(Display3D.java:1209) at sim.display3d.Display3D$12.run(Display3D.java:1152) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:633) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) After having a look inside the source code it looks like there some slight differences between the various XXXPortrayal3D classes that might not be intended, like the missing call of setShape3DFlags(Shape3D shape) where I guess (really a wild guess) the problem might be located. For a quick fix (it's late in my time zone) I rely only on CubePortrayal3D and the code does not throw any exception at the moment. Using the SpherePortrayal3D class does crash the application. I don't have the time to explore on this subject today and tomorrow so you or Gabriel may have a quick fix available. Regards, Jörg