Select particles every N particle, and move them along their normals?

[Akabane]

Hi there, is there a way to select a particle every N particles, put those into a group and then move them along their normals?

I added a hexagon (spline) and from the vertexes of that geometry i spawn particles (so they overlap every 6 particles); i need to group the particles putting each particle that spawn from a specific vertex in a group, and then move them in their normal.

well, i started with the source without velocity, using a group, and tried to group them with the rule "$PT == $PT - int($PT % 6) * 6" but it only works for the first 4 loops, then starts adding particles from other vertexes...i'm lost.

Help?

Thank you

Akabane

Edited April 15, 2010 by Akabane

[mightcouldb1]

Well... I don't really understand your expression, so I went with something more simple.

$PT % 6 == 0

Since any modulo operation on an integer will always return an integer.

Works fine for me. I also tried your expression and it worked fine as well.

Not sure what the problem is so post your example next time.

moduloAlongNormal.hip

[Akabane]

Oh man, thanks for the example. Yeah, both formulas work, but found out that my problem was not having the source spline "closed", it was open. This way the source was overlapping 2 particles at the same point