Hi,
I'm trying to create the v attribute for my points using a Trail SOP. The problem is that the points are deleted and generated, so the point numbers are not the same, and the Trail SOP seems to be using the point numbers. Is there a Trail SOP that matches based on id?
I do have an id attribute per point though. I'm currently using foreach and timeshift SOPs to match points in the previous frame using id, and then calculating the velocity from the positions. This is however very slow. Does anyone have any better ideas?