Raj N. Vaidya wrote:
JUST MY $0.02 ...
My guess is that you probably need a (theta, phi)
parameterization also. Assuming that the particles
are exploding in the radial direction only, I might attempt
something like the following:
The general issue with this approach is that is uses trig functions to
do the computation. Trig is really, really expensive and you really
don't want to be using it in the internals of a realtime rendering loop
- particularly when there's thousands of iterations per second. The
normalisation of the vector approach works very nicely and uses a lot
less CPU resources.
--
Justin Couch http://www.vlc.com.au/~justin/
Java Architect & Bit Twiddler http://www.yumetech.com/
Author, Java 3D FAQ Maintainer http://www.j3d.org/
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Neither man nor woman is the measure of all things. Every organism
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- Greg Bear, Slant
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