Re: how to make each channel's Cull & D
Jeff Brickley (jbrickley++at++lmwsmr.lesc.lockheed.com)
Tue, 01 Oct 1996 10:22:11 -0700
Frames-Per-Second rates are usually application specific and limited to
hard-ware maximums. We can easily maintain 30fps on our IR for most
applications, although we DO have processors to spare and more Raster
Managers than most. However, we had some difficulty with our specific
application when we first got the IR (we were abusing the poor thing on it's
first week here <grin>). With some help from SGI we were able to optimize
it for the new architecture and get our application up to some GREAT speeds
under the new architecture -- I love the IR's!!
I can still abuse it to the point of reducing it to 4fps, but it takes
a LOT of work for me to do it (and I'm still working on improving that rate
too...).
Jeffry Brickley
3D Systems Programmer
Lockheed Martin
White Sands Missile Range
P.S. we use dual pipe and dual channel and can still maintain 30fps if we
try, although for our application we generally limit it to 20fps so the IR
doesn't run faster than the rest of our equipment.... Thanks SGI!
----------
From: cege
To: Bernard Leclerc; flysiml
Cc: info-performer
Subject: Re: how to make each channel's Cull & D
Date: Monday, September 30, 1996 5:28PM
We are also working on a project that will use three displays. Your reply
worries us since we want 30fps. We are, however, going to be running it on
an
Infinite Reality Engine. What type of RE are you running your application
on
that gave you those performance results? If it isn't an IRE, would you
expect
a problem getting 30fps with an IRE?
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