Ronald,
Could it be that *preparing* the scene for rendering is the bottle-neck? If
you are running behaviors of computing positions for objects this could be
taking longer than rendering the frames. You could also try disabling V-sync
for your cards to see if that pushes the frame-rate up (at the expense of
rendering accuracy).
I'm suspicious though that you are getting exactly the same frame rate on
both machines. Could it be that your Canvas rendering code is somehow not
running as fast as possible? What are you using to trigger rendering a new
frame?
You can use a tool like OptimizeIt or JProbe to see where the hot-spots are
in your program and optimize from there.
Sincerely,
Daniel Selman
-----Original Message-----
From: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]On Behalf Of Ronald Mourant
Sent: Wednesday, July 04, 2001 8:53 AM
To: [EMAIL PROTECTED]
Subject: Win2000 vs. WinNT
Hi,
I have a fairly large database of roads,
buildings, signs, etc. On my machine at work
(Win2000, 512MB RAM, 2 800MHZ processors, a
GeForce 3 grahics card) the frame rate is 28 fps.
On my home computer (WinNT, 256MB RAM, 1 550MHZ
processor, Diamond Viper 770D Ultra graphics card)
the frame rate is also 28 fps.
What is the bottleneck here? Why doesn't more
RAM and the clearly superior GeForce 3 result in
better performance?
Thanks for your help.
Ron
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