CC Groom Binding Breaks When Switching to Cards/Static Mesh
I’m having a really frustrating issue with the "Create CC Groom Binding" tool. I’m trying to get MetaHuman groom assets (specifically a mustache, but it’s happening with hair too) onto my CC character mesh.
Everything seems fine at first: I run "Create CC Groom Binding"*and the strands look perfect. They sit exactly where they should.
The Problem The second I switch over to Cards or use any of the Static Mesh LODs that come with the MetaHuman asset, the whole thing breaks. The mesh doesn't stay put, it shifts downward. It’s not a massive jump, but it’s enough to completely ruin the alignment and pull it away from the face/scalp.
Why is the binding tool working for the strands but failing to keep the cards in the same coordinate space? It’s like the pivot or the offset isn't being respected once you move away from the strand based preview
Hi TechAmulets,
After internal discussion and research, unfortunately this is due to how Unreal Engine is designed, not a bug or unexpected behavior.
StrandsInterpolation works on individual hair strands (curve-based, more realistic), while CardsDeformation (Use Cards) works on hair cards (flat mesh planes used for performance).
Because these two methods use completely different data and geometry, their deformation results will not perfectly match or overlap. This is an expected limitation and part of Unreal Engine’s design.
We apologize for any inconvenience caused.
Steven
Reallusion
Feedback Tracker Admin
Hi TechAmulets,
I've already sent this issue to dev team
Thanks a lot.
Steven
Reallusion
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