I965 Chipset

[Mark Tulewicz]

Oh, do you know of any plans to add hardware support for glsl shaders to the 965GM chipset?  I will work on getting a simple example of lighting that fails. Thanks!

________________________________

From: Roland Scheidegger [mailto:sroland at tungstengraphics.com]
Sent: Tue 1/8/2008 9:54 AM
To: Mark Tulewicz
Cc: Dan Nicholson; xorg at lists.freedesktop.org
Subject: Re: I965 Chipset



Mark Tulewicz wrote:
> Sorry, I was't sure exactly who controls the driver development.
>
> Basically, I when I do the commands to compile and link shaders, I
> never actually get back a program code, its always returning 0.
> (Invalid shader)  So then I tried to use cg to see if maybe it could
> use shaders.  I get back an error saying "vp3 not supported", then i
> tried using shader model 1, and I get the error "generic is not
> supported".
err, are you trying to use glsl shaders? No released version afaik
supports this on i965 (and certainly the driver reflects that in the
supported extensions), though this should work in mesa git.
If you need programmable pipeline on i965 with a mesa release version,
try arb_vp/arb_fp instead.

> As for the lighting, my entire scene looks washed out all the time.
> Its almost like lights are being added after the texture component
> instead of beforehand.  So when a scene is fully lit, everything is
> almost completely white, instead of being full lit (at full texture
> brightness).
Not sure what's the issue, a simple example which fails would help (it
may also be something which is already fixed).

Roland


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