3D plotting in a GUI

[R Fritz]

I've been doing 3D modeling for lighting simulation and I found two 
reasonably well-supported solutions: VTK and OpenSceneGraph.  VTK 
generally has a research slant and has what I believe are reasonably 
strong Python bindings.  OSG is closer to VR/AR/Flight Simulation 
applications and the Python bindings are pre-alpha--you'll probably have 
to roll your own for some purposes.  Both are OpenGL based; if you need 
an easy Windows install you'll have to go with something that supports 
DirectX.

If your app is simple, you might just be able to write OpenGL code.

Anyone who knows of other reasonably current libraries, please follow 
up--there are a lot of libraries that don't seem to see much activity, 
and I'm not sure if this is because they are complete or because they 
are not much used.