I'm creating BVH files using the NaturalPoint Arena system to be used in Cinema 4D via the InterposerPro plugin. The motions I create in the Arena software look pretty good in the Arena editor, but when I export to BVH and import the BVH into Poser or C4D it looks jittery in places. The guys at NaturalPoint suggested that it might be a problem with improper scaling of the BVH to the Poser skeleton.

So I guess my question is: does BVH have a native "size" associated with it? I notice in the Arena software there is the option to scale the BVH upon export, but what does that really mean? And if there is a native size to the BVH or Poser skeleton, is there any way to find out what that is? And is there more to it than just size? Is it a question of proportion as well?

Also, one more question: is there any utility out there that might help me better scale the BVH file to Poser?

A lot of questions--sorry--but I'm really scratching my head over this stuff!

Thanks--Tim

Quote - I'm creating BVH files using the NaturalPoint Arena system to be used in Cinema 4D via the InterposerPro plugin. The motions I create in the Arena software look pretty good in the Arena editor, but when I export to BVH and import the BVH into Poser or C4D it looks jittery in places. The guys at NaturalPoint suggested that it might be a problem with improper scaling of the BVH to the Poser skeleton.

So I guess my question is: does BVH have a native "size" associated with it? I notice in the Arena software there is the option to scale the BVH upon export, but what does that really mean? And if there is a native size to the BVH or Poser skeleton, is there any way to find out what that is? And is there more to it than just size? Is it a question of proportion as well?

Also, one more question: is there any utility out there that might help me better scale the BVH file to Poser?

A lot of questions--sorry--but I'm really scratching my head over this stuff!

Thanks--Tim

Any chance of posting a image(s) of the jittery movements? What figure are you using for a skeleton? Was the skeleton created in poser by BVH export? There are several possible causes of this and just as many fixes. I have dabbled with BVH files editing them to work with other figures, both standard an non standard. I have seen that also frame rate can cause jitters.