easy 3D graphics for rendering geometry?

[gsal]

By the way, VPython crashes my computer rather easily:

- launch the editor
- open python file
- press F5 to run
- when the graphical windows appears, attempt to manipulate (drag or
resize)
- the computer looses it...

At the end, sometimes, the computer looks like is trying to take care
of things but simply takes forever; other times, I end up with a blank
screen and an unresponsive computer and have to press the power button
for about 10 seconds to get it to power off.

gsal