From: Rob Krajcarski (rjkrajca++at++dciem.dnd.ca)
Date: 02/18/2002 11:50:24
Hello,
I am looking into ways of using multitexturing to make certain geometry
appear to be lit. From what I can tell I have three options:
a) Use pfLightSource using projected textures
b) Perform a multipass render
c) Use Performer 2.4 and multitexturing
Now, my main problem with options a & b is that I only want the
multitexture to affect certain geometry, and so it seems a whole lot of
wasted effort to re-render the whole scene, and I haven't been able to
limit the effects of the pfLightSource to specific geometry (I have had
success when using pfLights, but that's all). As for going to version
2.4, that's pretty much out of the question in my current development
process....
So, I'm wondering if there are ways to do redraw parts of the database,
(perhaps with pfDrawBin?).
What I'm trying to accomplish is to have a 'complex' static lighting
patterns effect specific geometry. I'm sure that I could simply generate
precomputed textures offline since the lighting is static, but my feeling
(or guess) is that it will make things easier to change if I make the
layering of texture information dynamic. So if no one out there has
solutions to the multi rendering part of my problem, then maybe someone
can suggest a solution to my real problem :)
Thanks for any help that you can provide...
Rob Krajcarski
DCIEM
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