Hi all,

I've been trying to do the following in a procedural way, without any success. I'd be delighted if somebody could help me.

I have n number of points. They all have a single float attribute attached. What I want it to have the n:th attribute to be the sum of all preceding attributes.

Eg.
beforeattr = 2
beforeattr = 3
beforeattr = 1.5

afterattr = 2
afterattr = 3 + 2 = 5
afterattr = 1.5 + 5 = 6.5

Is there a nice way to do this? I've tried FOR and WHILE loops in VOP SOP and tried using ForEach SOP without satisfactory results.

Best regards,
Elias

You can use the Geometry CHOP to import the attribute into CHOPs, and then follow this up with an area CHOP. This will do the summation. Next, back in SOPs, append a Channel SOP to the SOP you fetched the geometry from, and fetch the attribute channel back from the Area CHOP.

That's really clever! Thanks!

A good moment for me to scratch the surface of CHOPs as well.

Again, thanks!