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View Full Version : Particle Expression - size change depending on speed


johnjoe
03-08-2008, 03:06 PM
Could someone help me out with a little expression writing? I'd like the size of the particle to change depending on its speed.

I'm guessing that I'll need to use radiusPP and velocity. Any help would be much appreciated
:banghead:

Thanks in advance

Joe

wima
03-08-2008, 03:26 PM
Im not sure here but have a look at mag function, it will return the lenght of a vector.
try something like...
radiusPP = mag(worldVelocity);

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03-08-2008, 03:26 PM
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