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?
Grains do not have orientation, an idea that could work would be to create a rough surface of your grain sim and transfer the normal of your surface back to your grains.