Documentation for the default 1.1 skeleton?

[a.g.]

Is there any documentation for the default skeleton in the 1.1 nightlies?

At the moment I'm mostly interested in the intended way for the extra shoulder and hip bones to move for achieving best deformation, and how hard would it be to drive them automatically from the simple upper leg or shoulder+upper arm control bones like you find in rigify.

[duststorm]

We are researching that.

[a.g.]

In the meantime I have come up with the following rules, which seem tolerable:

• The pelvis_L/R bones are constrained to only rotate around their single axis and copy 15% of the rotation of the thigh control.
• upperleg01_L/R copy 85% of rotation of the thigh control (i.e. lagging behind by 15%)
• upperleg02 rotates and scales to bridge the end of upperleg01 and the end of the thigh control.

For shoulder I'm less certain, so:

• clavicle and shoulder rigidly rotate as a chain with the single shoulder control bone - not sure at all how the angle between these two bones should behave.
• shoulder additionally copies a single axis of rotation of the arm, like pelvis.

I would like some hints if this is not how it's intended to be used.