[Visualpython-users] VPython errors on a laptop

[Jody E. <jod...@ho...>]

Greetings,

I'm a fairly new user to VPython, but somewhat experienced with general 
graphics & 3d related things.

Here's an issue that's just cropped up for me when using the graphing module 
of VPython:

***VPYTHON RENDERING ERROR*** ../../vpython/src/gldevice.cpp:940 invalid 
enumera
nt when rendering OpenGL display list number 520
***VPYTHON RENDERING ERROR*** ../../vpython/src/gldevice.cpp:940 invalid 
enumera
nt when rendering OpenGL display list number 521
***VPYTHON RENDERING ERROR*** ../../vpython/src/gldevice.cpp:940 invalid 
enumera
nt when rendering OpenGL display list number 522


and so on until infinity, repeating that exact same line.   It is only doing 
it on a laptop (sorry, not my laptop - so I don't have specifics) ... the 
program has been run on several desktop machines with no issues.

However, the graphs display just fine on the laptop -- it just keeps 
cranking out that error message.


We do have a small 3d graphing module in the pipeline as well, and while 
this error is harmless (but very annoying) right now, I'm somewhat worried 
that it will become a show-stopper with the 3d module.

Has anyone seen anything of this sort before, or know what might be going 
on?   The version of VPython being used is the one on the vpython.org 
website, downloaded in the last couple of weeks.

My first guess is that the laptop doesn't have a 3d accelerator.   It's 
undoubtedly just a stock card with no bells & whistles, but shouldn't that 
just all get shunted over to software rendering by OpenGL anyways?

The laptop is running Windows XP, and Python 2.4.2.   The various desktop 
machines are mixed Windows & Linux, with no apparent problems.


Thanks in advance for any help/advice/suggestions!

Jody Eisler