Hi All!

I am creating grass using Vellum Hair via this tutorial: https://www.youtube.com/watch?v=QlX7_okxOJA [www.youtube.com]
The shadows on the grass texture flicker. I noticed he doesn't have the flickering shadows like I do.

I have the grass tapering using a uv texture with rows and columns post-sim and then a wrangle with:

f@u = v@uv.x;
f@width = chramp("remap", f@u) * ch("size");

This wrangle controls the grass taper.

Not sure if I can do some vellum post process or if I have to re-sim with the polywire before the vellum solver instead of after, or if its a normals issue, or using the uv texture post-sim, or what.

Attached is a video of the problem, a screenshot of the nodes, and a .hiplc file. If possible to reply with a .hiplc file as well would be much appreciated.

Thanks!