J. Price

If you want to use a constant birth rate instead of impulse you could do

Impulse Act. = 0
Const. Act = 1
Const. Birth Rate = (100-$NPART)*($FPS)

If you want to vary the amount of particles so its not always 100 you could set Const. Birth Rate to (100-$NPART)*($FPS)*rand($F), which will generate different amounts of particles each frame, but it will keep your total particles from going above 100.

J. Price

This might be simplifying too much but what about

Impulse Activation = 1
Impulse Birth Rate = 100 - $NPART
Const. Activation = 0

J. Price

Since Side Effects is always working hard on Houdini and releasing new builds is there a change log available? Or an area with release notes? I'm always up for bug fixes, but its nice to see what is fixed. I've seen messages about a “journal” but I have a feeling that is for people with support contracts. Anything us Apprentice users can nibble at?

Thanks,

J. Price