Mark Hood wrote:
>>Date: Sat, 13 Jul 2002 17:43:27 +0100
>>From: Kevin Glass <[EMAIL PROTECTED]>
>>
>>Are there any major changes/configurtions that I've missed in the
>>release version of Java 3D 1.3. My application that had a frame rate of
>>around 90-100 on the beta has dropped down to 40-55.
>>
>>
>
>Some users have reported performance regressions from 1.2.1 due to 1.3
>requiring more resources from the graphics hardware and causing the driver to
>drop into software emulation mode, but we're not aware of any changes in the
>1.3 FCS from beta 1 or beta 2 that would account for such a drastic performance
>degradation.
>
>Which beta has the best performance in your app? Does dropping your window
>size or screen resolution help? Are there any features in your app that
>improve performance if they're not used?
>
>In the meantime, please send us some more information on your situation such
>as the OS, OGL vs D3D, graphics card/driver, and if know of anything unusual
>that your app may be doing. If you could send us a test case that reproduces
>the problem that would be the best way for us to investigate.
>
>-- Mark Hood
>
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>
Mark,
I'm afraid I'm pretty new to Java 3D so I've only tried beta 2. My App
consists a small world with a couple of player models, a terrain model
made out of quads, a background sphere and some quads in platform
geometry for a HUD effect. It performs picking as the central character
moves, but I see the slow frame rates at "idle" time.
I've removed all aspects of the world one at a time, models, terrain,
background... and see a 3-4 frames gained for each one, which is
actually what I'd expect from developing the thing. However, I've got to
the point of removing everything other than one aspect (be it terrain,
models or background) and still see the performance degredation.
Change screen resolution does help, if I scale my window from 800x600 to
300x200 I get higher frame rates as you'd expect.
I was running:
Win ME, OpenGL, GeForce 2 MX, detonators.
However, I've just upgraded and had to salvage some hardward, so won't
be able to reproduce this configuration for a few days. I'll hopefully
be testing on the new machine soon, so I'll have a comaprison. Are there
any registry settings for Java 3D that could have got screwed up? on my
old machine?
I don't think it could have been forced into software mode, as my scene
is complex enough that without hard acceleration the fps is more like 10.
Thanks for the prompt response, much appreciated.
Kev
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