From: Juan R. Sáenz-Diez (Yuri) (jrsdm++at++acm.org)
Date: 02/08/2001 14:50:26
Hi ANgus,
I set MANUAL mode to DVR, then scale once per frame or once every other
frame, etc, from APP on an APP_CULL_DRAW mp model. Should it be from DRAW?
(can't try until tomorrow).
Thank you,
Yuri.
----- Original Message -----
From: Angus Dorbie <dorbie++at++sgi.com>
To: Juan R. Sáenz-Diez (Yuri) <jrsdm++at++acm.org>
Cc: Info Performer <info-performer++at++sgi.com>
Sent: Thursday, February 08, 2001 6:30 AM
Subject: Re: trouble managing DVR by hand
> Do you set the DVR scale yourself or rely entirely on the Performer load
> management?
>
> In which process do you adjust DVR?
>
> What is your pfMultiprocess model?
>
> Cheers,ANgus.
>
> > "Juan R. Sáenz-Diez (Yuri)" wrote:
> >
> > pfHi,
> >
> > I am trying to dynamically set DVR channel scale in order to do some
> > predictive stress management. I have an iR2, 2 RM, 1x1280x1024++at++60 so
> > things should be simple (I think). It works, but with a lot of garbage
> > and problems:
> >
> > - I see garbage coming from the bottom of the screen, specially when
> > scales change rapidly from frame to frame (looks like)
> > - I miss frames randomly at any time, even in areas where I would not
> > do so without DVR'ing down the screen because I might be flying high
> > or somehow with low DRAW load
> >
> > Maybe I'm scaling too hard or too often, but I have seen no
> > improvements by limiting this to a minimum scale, a maximum change in
> > scale, or even a maximum frequency of scale updates. Doing such things
> > end up spoiling the usefulness of DVR. In demo mode, the application
> > is flown with the mouse -- anything to do with it?
> >
> > Any ideas? TIA for your kind help.
> >
> > Regards,
> > Yuri.
>
> --
> For Performer+OpenGL tutorials http://www.dorbie.com/
>
> "In the middle of difficulty lies opportunity."
> --Albert Einstein
This archive was generated by hypermail 2b29 : Thu Feb 08 2001 - 15:04:40 PST