rotating model in action changes zoom

[lkwebb21]

While trying to rotate a model in the action window the model shrinks then comes back to normal size between the key frames. Why??

How can I stop this?

[Rodney]

This will often happen when geometry is not assigned to a bone.

The software will then move the splines and CPs in a linear fashion creating the scale.

Would this be true in your case?

 

Even with bones the object may scale depending on what method A:M uses to rotate the object.

You should investigate 'Euler' drivers to better understand what is happening.

 

Generally in an action you can Right click on the Object's rotation attributes and Change the driver to Euler.

 

Here is the writeup from the online Technical Reference:

 

Euler Rotation Drivers

[lkwebb21]

I couldn't find the objects rotational attributes, where is it?

 

I did add a bone and that seems to work. Also the only thing I found with Euler was in the tools/options/action tab. I changed everything to Euler.

[KenH]

So, you are rotating the model in muscle mode in the action window right? If so, then the cps are moving toward the next keyframe via the quickest path....a straight line. This is going to distort the model.

The best way to do it is to rotate bones in an action.

[lkwebb21]

Thanks, it works good now in bone mode. Thanks for the help.