I've been playing around all day with different constraints but I just can't get the desired result. What I would like it to do is when the spine moves along x axis, first the leg gets extended (totally straight), then as it pulls the board - the board starts to bend. Also I need him to be able to rotate the whole lower body, without an upper body, and be able to do the same board flexing thing. How can I do that?
Update So I have been working with this armature, solved a few problems on the way, and new questions arose. The main one - is it possible in the "copy transform" constraint settings of the "board" bones limit "local space - local space" only to vertical axis, z in this case, and leave "world space" for x and y? So the board bones would be only flexible on the axis that a real board is flexible and I could easily apply rotations to the board? Or maybe I should look at this problem from different perspective and find some workarounds? Opinions appreciated. And thanks again to Italic_ for an awesome rig concept