FR: Even more new feature requests for all curves - Jitter / Noise

[masterjoe]

Besides my other post here: viewtopic.php?t=622139
I have some more curve parameters that could be added to the curve editor:

- jitter intensity
This adds random fluctuations to the curve. A intensity of 0 means the jitter is off. The higher the value the stronger are the up/down variations which are added randomly. It basically adds more or less noise to the resulting curve. The max value would add drastic amounts of noise to the curve.

- jitter scale
This defines how large each jitter "section" is, i.e. how long will each jitter deviation influence the curve before a different random jitter value (up/down) is used. So a value of 0 means infinite jitter steps - this goes down to the resolution of the curve generator and each step gets a different jitter value. This means very fine grained noise. Higher values would influence longer time sections of the curve with the same jitter up/down influence and define more large scaled noise.

- jitter seed
As the jitter is produced by a random number generator this would be the seed. The seed should be reproducable to that the same seed will always create the same outcome for the jitter added. Changing this value will produce different jitter influence curves.

- jitter type
The jitter could be depending of different algorithms. One might produce pure noise, another could produce more predictable results. This parameter is optional when more jitter algorithms become available.

If the word "jitter" is not clear enough it could also be called "noise".