GoalUV equivalent?

[renochew]

Hi, I am doing scene where particles are emitted from space, attracted to a surface and forming a shape. I use attractor to attract the particles but they currently just attract to vertices of the shape, is there way to make them evenly spread out to the whole surface? I searched the forum as well as the help but can't find any answers, any advice would be much appreciated.

Thanks!

[icelab]

How about attaching a SCATTER after your surface (to generate random points on the surface)?

[renochew]

Hi icelab, sorry for the late reply.

I try your suggestion but my attractor geometry is deforming and the point number are changing as well(through a cookie sop), the scattered point with pop from time to time, and the attracted particles will continue to chase the attracting point, resulting a rather chaotic particle movement, I am still trying to find a better solution. Any other idea would be much appreciated.

Thanks for taking the time to reply anyway.

Cheers.

[GallenWolf]

If you do not want the points scattered by the scatter sop to randomly jump about, use a Measure SOP set to area to calculate the area of each primitive.

Next, the scatter sop has a field called "Alternate Attribute", if you use that (check off the Scatter Based On Primitive Area) by putting the area attribute in, the scattered points should "stick".

GW