Dynamic control of Slider Max value with Midi controller

[PigWing]

I searched for a solution and none were found and I figured it out so I wanted share and give something back.

My problem:

Set up a layer fader that is audio reactive but still limited with a max value tied to a slider & fader on my controller.

I just started using a midi controller after a few years of working and performing with VDMX using mouse and keyboard with complex triggers and presets. What a difference the midi controller makes! It's like driving a car with mouse clicks versus a steering wheel and pedals....

Anyway, the solution:

I mapped a helper slider to my fader (on an Akai APC40 MkI) and then set the actual slider that controls the layer opacity to receive data from a filter on one of Audio Analysis plugins. The helper fader only receives from the midi fader (set to VAL) but the layer opacity slider on my custom control receives both the data from the Audio filter (set to VAL) and the helper slider but the input from the helper slider is set to MAX in the UI inspector.

Thus, the midi controller slider raises and lowers the MAX value on my layer opacity while it still receives audio level data within the physical fader constraints so I can fade a layer in and out that is pulsing and synced with the music.

I hope this helps someone as I've seen the question asked in a few different ways and was either unsolved or the conclusion was that moving the Min/Max vlaues is not possible. I wish it was easier or more straightforward but this is a way to make it work.

Have fun!