From: Lawrence Bertoldi (lberto++at++bert.clubfed.sgi.com)
Date: 01/10/2000 08:14:27
So in the out-the-window display are you perchance doing projected texture
lighting or other multi pass operation?
See Ya,
Lawrence Eugene Bertoldi Technical Consultant
vnet 238-8949 Silicon Graphics
phone 301-572-8949 Silver Spring MD.
email lberto++at++clubfed.sgi.com
~;-}>
On Mon, 10 Jan 2000, Gregory Schultz wrote:
>
> We have been experiencing the same type of problem with the
> out-the-window
> visuals for our cockpit simulator. During turns with extreme turn rates
> the
> textures flash and smear. The flashing appears usually on large
> textures that
> fill a large portion of the screen. We are using an Onyx2/Infinite
> Reality
> system with two 195 MHz IP27 processors. We are using IRIX 6.4 with
> patches.
>
> Greg
>
> Rob Jenkins wrote:
> >
> > Roy
> >
> > The incident you mention sounds like it's related to specifically texture
> > corruption. You describe something where the spurious tris appear where you
> > have no geometry. Could you run some other gfx apps, perhaps straight OpenGL
> > demos to see if it still happens, sounds a bit like a HW problem to me...
> >
> > Cheers
> > Rob
> >
> > > -----Original Message-----
> > > From: Roy Ruddle [mailto:Ruddle++at++Cardiff.ac.uk]
> > > Sent: 10 January 2000 10:44
> > > To: info-performer++at++sgi.com
> > > Subject: Spurious triangle flashing
> > >
> > >
> > > Hi there,
> > >
> > > I've just upgraded out Max Impact from 6.5.3 to 6.5.6 (to fix
> > > the constant
> > > frame rate/real-time bug). Unfortunately the upgrade has introduced a
> > > horrible graphics bug (at least, I'm pretty sure it's a bug).
> > >
> > > Previously everything worked fine. Now I have triangles
> > > flashing on the
> > > screen in places there are no graphical objects (but within the
> > > graphics window) and on top of/across other graphical objects. This
> > > happens when I run the old executable (6.5.3) or a
> > > recompiled version.
> > >
> > > It can't be a pfState problem because it isn't flashing parts
> > > of the DB
> > > in-situ. Thoughts anyone? Might it be related to #758216 (reported as
> > > "Texture flashing on Octanes")?
> > >
> > >
> > > roy
> > > --------------------------------------------------------------
> > > ----------
> > > Roy Ruddle, Senior Research Associate
> > > Cardiff Human Interfaces and Virtual Environments Laboratory (C-HIVE)
> > > School of Psychology, Cardiff University, PO Box 901, Cardiff CF11 3YG
> > > Tel: +44 (0) 2920 875030 (direct), Fax: +44 (0) 2920 874858
> > > Email: Ruddle++at++CARDIFF.AC.UK http://www.cf.ac.uk/uwc/psych/ruddle/
> > >
> > >
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