[Mesa3d-users] how to get convolutions working

[Andy Gill <buzz@uc...>]

i'm using mesa 3.5, and i'm trying to use the 2d convolution feature of the imaging extension. all i want is a blur, but when i set it all up, although the program compiles fine, i see no difference in output. i couldn't see any fundemental difference in my code from the example in the red book. is the convolution support complete and if so, is there some example code showing it working?

thanks in advance,
andy.

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[Mesa3d-users] Mesa3.5 + Nvidia Driver = GLUT Trouble?

[chengyu sun <chengyusun@ya...>]

Hello,

I used to have Mesa3.3 + Nvidia Driver on Mandrake 7.2

and Mesa3.4 + Nvidia driver on Mandrake 8.0. Both
worked perfectly (at least for my limited Opengl
practice). The problem now is that I have to use GLU
1.2 for the tesselation stuff, and the recommended
way seems to be using the SI Sample implementation
from SGI. Since Mesa3.5 includes si-glu in the
release, I installed Mesa3.5. Without Nvidia driver,
everything works fine; however, once I installed the
Nvidia driver, I got the following error messages
when compiling some sample code from the Red Book:


/usr/lib/libglut.so: undefined reference to
`glXBindChannelToWindowSGIX'
/usr/lib/libglut.so: undefined reference to
`glXCreateContextWithConfigSGIX'
/usr/lib/libglut.so: undefined reference to
`glXGetFBConfigAttribSGIX'
/usr/lib/libglut.so: undefined reference to
`glXQueryChannelDeltasSGIX'
/usr/lib/libglut.so: undefined reference to
`glXChannelRectSyncSGIX'
/usr/lib/libglut.so: undefined reference to
`glXChannelRectSGIX'
/usr/lib/libglut.so: undefined reference to
`glXQueryChannelRectSGIX'
/usr/lib/libglut.so: undefined reference to
`glXGetFBConfigFromVisualSGIX'

It looks like libglut in the Mesa3.5 release was
compiled with some SGI-specific extensions that
the Nvidia OpenGL driver does not provide. I'd
really like to know if there any walkaround for
this since I do need both GLU 1.2 and hardware
acceleration.

Thank you very much in advance,

- Chengyu



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