Masoud Saadatmand

I think I should use a (volume velocity) field, right?

Hi everyone,


I have an RBD Fractured Object wired into a Rigid Body Solver (Bullet), and I’d like to apply a custom velocity to each piece whose centroid’s Y position is below 0.5.


I tried this inside a Point Wrangle within a SOP Solver, but it didn’t work:

if (@P.y < 0.5)
{
v@vel = {0, 10, 0};
}

I also attempted the same approach inside a Geometry Wrangle in DOPs, but that didn’t work either.

Does anyone have suggestions on how to achieve this?



Thanks in advance!

Hi everyone,

I'm trying to copy some grass (lines) onto the top layer of my Vellum grains simulation. However, the grass blades aren't aligning with the direction of the grains — they always point straight up instead of following the grains' orientation.

Does anyone know how I can make the grass follow the grains' axis properly?





Thanks in advance for your help!