BrainModular

Hello,

I have a simple question: why do log/exp scales are programmed with values on X-axis and input on Y-axis?

When I choose "log", I expect a function that gives high values when I move the fader a little bit, then a small amount of values are spread across the rest of the fader.

All other audio softwares (but it's also mathematically logical) that let the user choose a log/exp curve are programmed with the input on X-axis (MIDI keys, MIDI velocity, etc.) and the output on Y-axis (cutoff filter, volume, etc.), which corresponds to f(x) in the mathematical language. In the case of Usine, the fader/knob cursor is the input and the values are the output.

It's counter-intuitive, isn't it? The idea would be to invert the "log" and "exp" names.

Not a big deal, though. I thought there might be a reason hidden under the hood.

creal.

As long as the order of the functions that appears on the list is not change (linear, log, exp) , the names could be simply changed to become (linear, exp, log) for compatibility sake.

not really.
in log mode, small changes on low value will give big changes on the result. It corresponds to the log curve:

But you're right, it's just a mater of point of view.
I think that it's too late now...