Issue with deforming of the mesh when animating

[KENE]

I’m trying to position my character for the run cycle right now and the leg is misshapen

. My weightpainting seems to be good, and I don’t know the problem.

[CoreyKnecht]

Is it possible you didn’t apply your transforms with Ctrl + A before parenting, or that an origin isn’t where it should be? Both of those can cause similar problems, and both are easy to forget (I sure did!). It’s probably not the origin, but worth checking I guess.

To me, it certainly looks like a scale issue vs, for example, the pretzel-mess that happens when you set the IK chain length too short in the bone constraint, because the length of the leg still looks to be about right. That might help in diagnosing the problem.

Have you tried posing any of the other limbs or bones to see if you have the same issue throughout the whole model?

[FedPete]

looks like some sort of scaled disformation.

[Dwayne]

Probably not it, but just incase, make sure preserve volume on the armature modifier is not checked.

[KENE]

Yeah, I’ve just checked. All Limbs are behaving in similar ways.

[KENE]

Where is the Armature modifier again? I don’t think I know

[KENE]

I just found it. It isn’t checked.

[Dwayne]

The only other thing I can think of is some kind of weights or scaling issue. I’d recommend cleaning it up, Applying transforms, and then reparenting.

Clean it up

Deleting all armature modifier. Deleting all vertex groups. Note:In the drop down arrow on the right of the vertex group list there is an option to remove all groups. Then clear parent(Alt+P->Remove parent) for both armature and mesh. Reset bone position in pose mode(Alt+g, Alt+r, Alt+s).

Apply transforms

1. While in object mode, select mesh and press ctrl+a->All Transforms
2. Select armature and press ctrl+a->All transforms

Parenting

1. Select mesh
2. Shift+select Armature
3. Ctrl+P->With Automatic Weights

[CoreyKnecht]

If all limbs are behaving similarly, then that further suggests an object-wide scale problem of some kind. Definitely follow @Dwayne 's procedure; my head’s not screwed on right atm, but it looks quite thorough at first glance, and I’m thinking the solution really should be somewhere in what he laid out.

[Dwayne]

@CoreyKnecht that would be the apply transforms part.