Re: [Mesa3d-users] 3D texture size limitations in mesa/r200?

[R. A. K. <rak...@gm...>]

On Jan 8, 2008 7:48 AM, R. Aditya Kadambi <rak...@gm...> wrote:

>
>
> On Jan 8, 2008 7:44 AM, Brian Paul <bri...@tu...>
> wrote:
>
> > Brian Paul wrote:
> > > On 1/5/08, Wes Bethel <ewb...@r3...> wrote:
> > >
> > >> - Using h/w accelerated rendering (I have a laptop with a ATI R200
> > card,
> > >> it uses Mesa 6.4.2 (IIRC) in conjunction with DRI to do h/w
> > >> acceleration), and also skipping the size check, it looks visually
> > like
> > >> data from only one of the texture slices is accessed regardless of
> > the
> > >> texture coordinates I specify. In other words, while the (u,v)
> > >> coordinates appear to produce the correct value, the w coordinate
> > >> (texture depth) appears to be hard-wired regardless of what I
> > specify. I
> > >> actually believe the problem is a bit worse than this -- I don't
> > think
> > >> the (u,v) coordinates are being correctly mapped to a 3D texel
> > location
> > >> either. However, it is difficult to explain clearly exactly what the
> > >> problem is. Suffice it to say there is a problem mapping a (u,v,w)
> > >> texture coordinate to a 3D texel.
> > >
> > > I can't test R200, unfortunately. Maybe someone else can look into it.
> >
> > To prevent this issue from getting lost, please file a Mesa bug report.
> >
> > -Brian
>
>
> Hi Brian;
>
> I am still working on this. I got a patch on the dri-users list that I
> need to try. I will file a report as soon as I finish my investigation.
>
> -Aditya
>
> This was fixed today with a patch from Roland Scheidegger

I have filed a bug report and included the patch in the comments. It is Bug
#13980
https://bugs.freedesktop.org/show_bug.cgi?id=13980

Thanks,
Aditya