Axel Sammet (axel++at++luca.hannover.sgi.com)
Mon, 6 Oct 1997 18:51:30 +0000
the rm7 certainly has enough frame buffer memory to give you a 1280x1024
area to draw in at medium pixel depth. polygons ,however, are not handled
by the rm boards but by the ge12 (which gives you roughly 20-25K
"VisSim"-Polys++at++60Hz). The problem is the depth complexity of your database:
Since 1 RM7 fills about 150-180MPix/sec(VisSim Pixels), it is capable of
dealing with a DC of about 2 at the resolution and update rate given. for
high altitude flight simulation this is probably sufficient, for ground
action you'd better go for 4-6(DC), meaning 2-4 RM7s.
Hope that helps
Axel
On Oct 6, 15:50, Mattias.Johansson++at++saab.se wrote:
> Subject: How many RM's?
> This is not really a Performer issue, but since I know that
> some of you out there are experts on Raster Managers, here goes:
>
> I would like to know if one RM7 can render one 1280x1024 channel
> at 60Hz (medium pixel depth, approxm 5000 polygons in the channel).
>
> If not, in what way would an extra RM board help (using the same
> channel size and pixel depth).
>
> The target machine we are looking at would be a single pipe Onyx 2 with
> four R10000 processors.
>
> /Mattias
>
> --
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>-- End of excerpt from Mattias.Johansson++at++saab.se
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Axel Sammet | HNV Office: +49 511 9017229 Projektmanager | Home Office: +49 40 60679230 <---- Visual Simulation | Fax: +49 511 6138115 Silicon Graphics GmbH | Fax Home: +49 40 6047117 <---- Ahrensburger Strasse 3 | Mobil: +49 171 3583206 30659 Hannover | E-Mail: axel++at++hannover.sgi.com Germany | V-Mail: 331-8629 ___________________________________________________________________ ======================================================================= List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/ Submissions: info-performer++at++sgi.com Admin. requests: info-performer-request++at++sgi.com
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