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View Full Version : Retargetting: Large Skeleton to Small

Valfaroth
08-25-2007, 02:38 AM
I've seen videos that describe this process, and I've had it work a few times for me before, but something is currently going wonky.

I'm important an HTR motion (mocap) onto a characterized HTR skeleton and trying to drive an FBX characterized skeleton. Most of the time my skeletons are roughly the same sizes so I never notice that big of an issue.

The problem I'm having is no matter what I try the ankles stay together. This means the Skeleton I'm driving takes WIDE steps to keep up with the HTR skeleton. The weird thing is that sometimes I can import everything and it works.....Most times it doesn't. I'm not sure which step is causing this, but would LOVE to figure it out.

Has anyone seen this before? I have a feeling it's something in the way I'm importing the HTR skeleton. Any tips would be greatly appreciated.

Valfaroth
bclark
08-25-2007, 06:41 AM
turn off match actor, or adjust the feet width offset under the chracter settings on the character node, that should take care of it.
Valfaroth
08-25-2007, 07:04 AM
Match Actor is turned off....

And it's not the feet spacing that's the problem. I move the feet closer together but they still move the same distance as the HTR ankles, just not as far out....if that makes sense,.... It's confusing. (unless you meant something other than feet spacing)

(also, the pelvis moves the same distance as the HTR skel's pelvis)

Any other thoughts? (really hope to understand why this is happening 8) (hehe I wish it was "match actor")
Valfaroth
08-28-2007, 01:02 AM
After a few experiments I figured it out and thought I would pass things along.

What I did originally was take the fbx I was given....convert it to HTR to create the skeleton in the motion capture system....I also used that HTR to create the characterized HTR skeleton in Motionbuilder. When I got the Skeleton into the motion capture software, I had to size it up to the size of our actor.

When I took the motion capture data back to the Characterized HTR skeleton, it would make the skeleton big but the "stance" pose was still small....Apparently the Characterized FBX skeleton was retargetting while it was small, so when it grew to the motion capture data size, it was retargetting wrong.

The solution then was to not have the HTR skeleton precharacterized....But rather just import the HTR from mocap, and THEN characterize it....This sets the "stance" pose to large so the FBX skeleton understands it better.

(Does that make any kind of sense?) I hope I explained it well enough.
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