If anyone has used 3ds Max, you know that a fresnel falloff can be drawn by playing with bezier points on an actual 0-1 curve.

In maya I have been piping a spot info node (facing ratio) into a ramp...and the ramp then dictates the fresnel falloff. My question is - is there a way in maya to make this curve with beziers rather than with a ramp more like a falloff in max? I like to make my own fresnel falloffs and it makes more sense to me to be able to actually see the curve in profile and weight it with beziers rather than using a ramp...

-John