From: Angus Dorbie (dorbie++at++sgi.com)
Date: 08/18/2000 03:31:03
Yes, more TRAM gives larger supported clipsize.
Cheers,ANgus.
Andreas Ekstrand wrote:
>
> Luis,
>
> Is the texture memory on Reality always smaller than on iR2? Our
> customer has put 64Mb in a Reality pipe. Won't this mean that the clip
> region will be the same as in an iR2 pipe with 64Mb?
>
> /Andreas
>
> Luis Ignacio Miranda wrote:
> >
> > Hi Andreas,
> >
> > Clipmapping is possible on Reality as well as on iRX (iR, iR2, iR3).
> >
> > The difference is that since the performances of Reality are not as good as
> > the iRX, you have less time to draw, so it means that if you spend some of
> > these restricted miliseconds for clipmapping, you have even less time for
> > drawing.
> >
> > In addition to this, the texture memory on Reality is smaller than on iRX,
> > so the clipregion will be smaller.
> >
> > Hope to help,
> >
> > Nacho
> >
> > Andreas Ekstrand wrote:
> >
> > > Hi!
> > >
> > > In previous messages on this list (e.g. 03 Sep 1999) there has been said
> > > that clipmapping is only supported in IR hardware. "Onyx2 Reality and
> > > Onyx2 InfiniteReality2 Technical Report" says that both Onyx2 Reality
> > > and Onyx2 InfiniteReality2 systems support clipmapping in hardware.
> > >
> > > So what's really the case here? When mentioning the term IR, does one
> > > also refer to Onyx2 Reality because this is a budget version of IR or
> > > what? We would like to use clipmapping on a Onyx2 Reality - what will be
> > > the difference comparing to the IR2?
> > >
> > > Regards,
> > > Andreas Ekstrand
> > > --
> > > ------------------------------------------------------------
> > > Andreas Ekstrand, FGA-AE |E-mail: Andreas.Ekstrand++at++saab.se
> > > Saab AB - Simulation Center|Phone: +46 (0)13 - 18 40 42
> > > SE-581 88 Linkoping |Fax: +46 (0)13 - 18 41 77
> > > SWEDEN |
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>
> --
> ------------------------------------------------------------
> Andreas Ekstrand, FGA-AE |E-mail: Andreas.Ekstrand++at++saab.se
> Saab AB - Simulation Center|Phone: +46 (0)13 - 18 40 42
> SE-581 88 Linkoping |Fax: +46 (0)13 - 18 41 77
> SWEDEN |
> ------------------------------------------------------------
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