I have “Mac Gyvered” this curve, based on the gradient values (set to linear light space, and interpolation to Cubic Biased)
Just for fun, there is a Cubic curve as well in it.
All data is exported via Structure Manager as ASCI
Data, Cinema 4D file and screen shot. (File updated Friday June 11 11am PST)
I’m sorry that my suggestion from today here to ask in the Developer Café, has so far no answer created for you.
The formula in the file is a “Frankenstein curve”, not elegant. Perhaps you have a better idea based on my little support here. I hope this visual helps you to see the formulas needed for A or B, as mine is of course result based, not split in A/B contribution formulas.
I can’t see the formula
t*t*(3-(2*t))*100 [the white curve in the image]
would work here, see image, it is too strong.
But Mixed with a linear function x=y, it might for the “cubic”:
t = 0 to 1
Or for the “Cubic Biased” it would be
Test this, as I have no data from any developer.
I understand that this is the resulting curve. You might look more for the left side or right side formula.
The one above represents the mixture of both.
I’m curious if the developers release our “trade-secret” of creating fine curves.
Click thumbnail to see full-size image