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View Full Version : what's happening with the biped rig spine?


illusory
03-13-2008, 12:36 AM
Hello,

I've used the biped guide to make a rig for a model, and when choosing 'skeleton spine' (rather than quaternion), i get an unusable spine. If i try to rotate any of the middle spine bones , the model immediately twists 180 - 360 degrees or more at that bone, and sometimes at an additional spine bone as well, and won't even undo.

I've attached a pic to show what i mean.

Any idea what's happening here? How to prevent this?

I have XSI 6.5 essentials.

thanks,
NJ

ThE_JacO
03-13-2008, 01:23 AM
does it have any upvectoring?

illusory
03-13-2008, 02:43 AM
yes it does. It's the default biped rig. I was wondering about that too..

I just discovered i left the COG on, and that seems to be what caused the problem. When i turned it off, the rotation works fine.

thanks,
NJ

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03-13-2008, 02:43 AM
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