How do you convert a rotation to use as a value between 0 and 1? Basically I have a bone that rotates, and I want to use it's rotation to drive an Influence of another bone that ranges between 0 and 1...
For example:
If the bone rotates 0 degrees, the value is 0.0
If the bone rotates 45 degrees, the value is 0.5
If the bone rotates 90+ degrees, the value is 1.0
How can I achieve this with drivers / constraints?
Thanks for any help!
As the rotations are calculated in radians (degrees are shown only as helper), the correct driver formula to get 0.0 - 1.0 range from 0 to 90 degrees is: 2*var/pi.

Check theese answers for more infos.
About driver rotation Degree and Radian