>The SGIs seem to have both double buffered and single buffered visuals.
>For some reason Tkinter seems to be picking up the single buffered one
>when the SGI OpenGL is used, but the double buffered one when Mesa is
>used. I haven't a clue why that might be the case.
The README for Python 2.3.4 (apparently, all the way back to 2.1) has an
interesting statement about IRIX:
On SGI IRIX, there are modules that interface to many SGI specific
system libraries, e.g. the GL library and the audio hardware. These
modules will not be built by the setup.py script.
I have tried and failed to get IRIX specific modules to build. I could
not find any clues in the documentation for a way to build these modules
that worked. I did not get any reply to my request on comp.lang.python
for a method to build the GL library module for IRIX. From what I could
make out from the error messages and the Makefile tangle after I tried
various orders of operations, the compiler is told to look in the wrong
place for the module's code. Therefore, I put in a bug report that did
not result in any helpful replies. I would imagine that to get the native
SGI GL library to work with analysis requires that this module be built.
Because of other responsibilities, and because analysis works reasonably
on SUN, I had pretty much given up on analysis on the SGI.
Bruce D. Ray, Ph.D.
Associate Scientist, and Operations Director
402 N. Blackford St.
Indianapolis, IN 46202-3273