Corrective Shape Keys with IK

Support Animation and Rigging
1

Hey
It seems one normally uses FK when creating corrective shape keys since making them with IK bones is not an exact science (or so it seems). Is there a way to make CSK’s using FK that will also activate when posing in IK?
For example: Creating a CSK for a bicep from the forearm.fk bone but have the same CSK activate when you pose the arm with the corresponding hand.ik bone.

2

@DanPro has written about how to do this here: Corrective shape key driver for the shoulder - #2 by DanPro and created a tutorial about it here: https://www.youtube.com/watch?v=1WmFaBlDBHs for context, these do work specifically with IK, as pointed out in the answer here: https://blender.stackexchange.com/questions/69380/corrective-shape-keys-for-the-shoulder

3

Thanks for the fast response.
My rig didn’t have any ORG bones but I found some that did the same thing. It worked perfect.
Thank you.

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