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List:       mesa3d-users
Subject:    Re: [Mesa3d-users] OSMesa Anti-aliasing?
From:       Brian Paul <brian.paul () tungstengraphics ! com>
Date:       2006-09-04 17:11:32
Message-ID: 44FC5E44.5080702 () tungstengraphics ! com
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Brian Muramatsu wrote:
> Hello :-)
> 
> I have been working through the Red Book examples, and I have been
> trying to get anti-aliasing working in the same fashion as shown in
> Example 6.5 (aapoly.c).
> 
> In short, here are the four functions they call to enable anti-aliasing:
> 
>     glCullFace (GL_BACK);
>     glEnable (GL_CULL_FACE);
>     glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
>     glClearColor (0.0, 0.0, 0.0, 0.0);
> 
> Using the same technique in my program, everything works fine on screen,
> but when I use OSMesa, there is no anti-aliasing, and you can see all
> the triangles that compose the objects  drawn on top of the shading.
> Also everything is really jagged as well.
> 
> Has anybody used polygon anti-aliasing with success and are there examples?
> 
> Would the problem be my hardware for some reason (I use software
> rendering with a radeon x300 on Linux 2.6.16 with Mesa 6.5 (no fglrx))?
> 
> Any clues? :-)

If you could provide a small test program (perhaps modify 
Mesa/progs/osdemos/osdemo.c) and maybe send a sample image, I'll take 
a look.

-Brian


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