I have the following setup, riveted controls drive blendshape targets, that then drives back the rivets. I use the promoted t of my transformObject to drive the blendshape target.
t seems to read the the position of the control relative to it's restlocal which is expected, if you remove the rivet from the equation and move a control along y by .25 units, ty would be .25
Now if you add the rivet in the equation, since it's driven by a blendshape, the rivet xform doesn't actually match with the amount of units I'm trying to move it by.
It's resulting in blendshape targets being triggered exponentially faster based on the amount of displacement of the prim driving the rivet.
If you see in the above gif, the first shape I trigger gets to its full target at around 0.0065 units when it's supposed to be 0.025 whereas the next one gets to full target around 0.020 since there is less displacement.
So I would like to know if there is a way to only get the value of my cursor instead of the the position of my xform relative to it's rest. That way I have a uniform range with my cursor to trigger my blendshape targets.
Hopefully this is clear enough.