From: Calvin Lu (calvin++at++paradigmsim.com)
Date: 05/01/2000 13:05:37
By default, Vega enables the following,
k = PFCHAN_SCENE | PFCHAN_STRESS | PFCHAN_SWAPBUFFERS |
PFCHAN_STATS_DRAWMODE | PFCHAN_CULLFUNC | PFCHAN_DRAWFUNC;
pfChanShare( pfchan, k);
The vgObservChanShareMask function can be used to enable the
PFCHAN_NEARFAR, PFCHAN_LOD, and PFCHAN_LPOINTFUNC bits. Another
way to manipuate the channel share group is to retrieve the
pfChannel pointer from vgChannel and use pfChanShare to change
the mask directly.
cLu
> -----Original Message-----
> From: Luc Leblanc [mailto:luc.leblanc++at++AdacelCanada.com]
> Sent: Monday, May 01, 2000 12:44 PM
> To: Performer Mailing List; Vega Mailing List
> Subject: Re: swap ready connector
>
>
> Hi.
>
> Does anybody know how performer channel groups are handled
> (more specifically
> the PFCHAN_SWAPBUFFERS_HW token) by Vega on SGI ?
>
> Thanks...
>
> Angus Dorbie wrote:
>
> > It can be important when you intend to run at less than the vertical
> > retrace rate of video, especially if you unexpectedly frame
> extend but
> > in practice, with the right pfPhase set the it isn't essential on a
> > single image system. It is essential when using multiple
> systems. You
> > should try and channel share PFCHAN_SWAPBUFFERS_HW and wire
> swapready
> > even on a single image system though, it's easy enough.
> >
> > CHeers,Angus.
> >
> > Luc Leblanc wrote:
> > >
> > > Hi.
> > >
> > > We're using a Vega 3.4 application on a 6 pipes Onyx2
> IR2. The pipes
> > > are properly genlocked (according to gfxinfo -v and to
> the Genlock In
> > > and the Genlock Loop Through connectors) but the Swap
> Ready connectors
> > > are not connected together. How important is it to connect those
> > > connectors together ? What impact can that have on the
> frame rate ?
> > >
> > > Thanks...
>
> --
> Luc Leblanc
> Software Designer
> Adacel Technologies Canada Ltee
> EMail: leblanc++at++adacelcanada.com
> Tel: 450-672-1114 #270
> Fax: 450-672-4434
>
>
This archive was generated by hypermail 2b29 : Mon May 01 2000 - 13:07:30 PDT