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Twist Bones

Aug 27, 20241 min read

This is basically the tutorial you have to follow: https://www.youtube.com/watch?v=_GmAupH5Co0

Blender

You want to split the weights of a bone into an upper and lower twist. The split should be a gradient so when either or both twist bones roll, the transition in smooth.

Using CATS is easiest!

Unity

  1. Add a rotation constraint with a weight of 0.3-0.5, or any other value you prefer.

  2. Ensure X and Z axes can rotate freely. Only Y should be checked.

  3. The source should be the parent bone’s parent bone for upper twist, or a child bone for the lower twist.

Graph View

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