Groom turns into stringy mess during animation / sequence

Development Character & Animation
,
1

Hi everyone,

I have a problem with Grooms in an animation or sequence.
While the groom looks great in a static pose or during decent head movements, it becomes a problem during root-animation.

This is the groom:

image
image863×990 69.2 KB

Now, when I put my metahuman with its groom into a sequence and add an animation to it (walking forward, very little head movement) the groom becomes more and more like this:

image
image673×621 66.8 KB

It is a gradual process, starting with a few strands and ends up like this in the end.

No idea what is causing this.

2

Ok, this comes down to the same problem that I had with other groom settings.

The pictures above were done with the Binding Type set to Skinning.

Now, when I set the binding type to rigid, the problem disappears, as you can see in this comparison:

Binding Type Skinning:

image
image1009×612 102 KB

Binding Type Rigid:

image
image1187×727 90.4 KB

Both pictures were taken at the same frame in the same sequence.

@Charles, as you were interested in this type of bug in another thread of mine, would you be interested in this project to have a look into? I can zip it up for you and upload it somewhere.

r.Hairstrands.SwapType is set to 3.