I have a spot light that's keyframed to move around, XYZ axes, and keyframed to pointofinterest around, again 3 axes.
I would like to parent another spot to the "point of interest" and X, Y, Z position (I have them split up), but have everything reversed. I assume expressions are the way to go, but I have very little knowledge of what they are capable of.
If you imagine a physical spot light, I basically want to stick another one on the back of it and point it in the other direction, no matter where the origina spotlight goes.
I haven't found anyone online who has done this, but if there are any resources or plugins that might help me, please point me in the right direction.