Dave,
It looks like you are doing some really interesting work, especially given
the domain for the image URLs you provided earlier today. I have to be
honest that I don't think anyone can realistically answer your questions
without much more information.
At 10:07 AM 8/28/2000 -0400, you wrote:
> Q: What kind of FPS should I be seeing?
What platform are you running on, what size is your rendering window, are
you using OGL or D3D?
> Q: Am I maxing out at 18 fps because I don't have anything in the
>scene moving faster than that? I have no interpolators going, no timed
>behaviors except my keyboard.
Not likely, depending on your rendering window and graphics hardware, you
are likely either fill bound or transform bound. Fill bound means that you
are trying to fill too many pixels on the screen and you don't have the
pixel fill to do so. Transform bound means you have too many vertices in
the scene that are being processed--this really becomes an issue with
multiple lights in your scene, especially spot lights. One test for
finding if you are fill bound is to decrease your rendering window size to
60x60 or, better still, to a much small version of what you have now but at
the same aspect ratio. If you performance jumps you are likely fill bound.
To see if you are transform bound, use LODs to decrease the number of
vertices in the scene, decrease the number of lights, etc.
> Q: If I want to do an animation like rotate a transparent GIF over a
>transparent cylinder (for a fire effect), how many FPS do I need for it to
>look realistic?
What kind of fire are you trying to reproduce? Fire in a fire place, fire
on a stove, forest fire, fire ball, etc? How important of an element is
the fire to your scene? Depending on the answer to this question the speed
could be lower or higher. In general it will depend on how much your
textures need to move to generate the effect you desire. If they have to
move a lot a higher framerate will be required to make the motion not look
jerky.
--Mark
Mark Ferneau 240-462-6262 (cell)
Director of Adv. Technology 801-437-4608 (efax)
Xtivia Technologies, Inc. 732-469-5954 x629 (NJ office)
[EMAIL PROTECTED] 301-279-5703 (home office)
http://www.xtivia.com/ [EMAIL PROTECTED] (wireless email)
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