Rotation/Orientation Constraint With Offset

Artistic Support Animation and Rigging
1

Hi,

Correct me if I’m wrong, the blender equivalent of rotation/orientation constraint is the copy rotation constraint.

My problem with this is that “offset” parameter does not function as I intended.
You can see an illustration of the problem here:
https://www.dropbox.com/s/2ttkdr001xhm8tw/BLEN23_rotation_orientation_constraint_offset_01.mp4?dl=0

Not shown in the video but I also tried the following

  1. Copy Transform Constraint (which I believe is the parent constraint equivalent). Didn’t work as it has no offset option
  2. Medling with the spaces in the copy rotation. The closest I got is to set both as local space (default is both world space). Unfortunately, it no longer rotates properly.

What I was expecting when offset is enabled is the driven stays as is. Then it just follows further movement like this one:
https://www.dropbox.com/s/roala6ekba6fvrc/BLEN23_rotation_orientation_constraint_offset_02.mp4?dl=0

The closest I got of a conclusive answer is in this thread which roughly says

  1. Offset parameter is faulty.
  2. Use a bone instead to offset.

Is that assessment still applicable in the current version (2.8)?

Thank you for looking at my problem.

2

Couldn’t find another thread you made, but this is as good a place to respond. I know you were having some trouble with copy rotation constraints, which led me to do a little more investigation and figure out why they suck so bad.

I explained why at Why your rotational constraints don't work . It’s kind of wordy, but you might get something out of it.

3

Thanks for the follow-up.
I find the offset option within the constraint unpredictable. So I just ended up using an actual object as an offset.