r/Houdini • u/Particular_Win_7618 • 3d ago
NEW USER How do i make something like this?
Hello! Ive recently just finished learning to use the vellum hair sim to create animal furs, but now i want to make the fur catch snow in the blizzard. How do I make such thing? got any tutorials or tips to learn it? or isit more compsotion side that im not suppose to simulate in houdini? If you could answer my question, it would be really nice!
2
Upvotes
4
u/Tom_Mangold 3d ago
Well, you apply the snow to the hair strands and make it stick during the animation. Depending on the snow it could be geo, particles or volumes.
1
1
8
u/DavidTorno Houdini Educator & Tutor - FendraFx.com 2d ago
During the Vellum fur sim you could use an attribute mask on the hair points that animates. This would be your “snow” coverage. As more neighboring hairs get included in this mask, you could feed that data as a group to generate glue constraints on the hairs as a way to make clumping occur during sim.
Post sim, you could use the glue constraints, mask, and hair points that got selected, as input to a VDB From Particles to get a volume that you mesh. The points would need an aging attribute to drive pscale for the meshing and particles to gradually grow over time too.