Add the possibility to selectively recall Global Channel Presets

[catweasel]

GlobalChannelPreseter

Ah, yes thats more like the boxes example. Still doesn’t seem quite right, the values are animated, but seem like they do the delay then switch, unless its the mad setting… :D Also it displays the parameters twice (which I noticed with the boxes too) I found this formula earlier this year when working on some image processing shaders, its quite interesting S curve, it doesn’t overshoot except at the very extremes, but can make quite a wide range of curves, its bit like a centre point and a s…

Its something I’ve attempted, but haven’t looked at again recently, kind of attempts that i think. Its way off finished though