drawing process reverse function

dear community!

I’m on the lookout for a drawing tool for a live performance. I’d love to be able to draw a simple sketch with my graphics tablet, reacting to a live performance.
I want the drawn line to fade. Suppose I were to draw a spiral, then this spiral would dissolve again starting from the centre when I reach the outer circles...   I’d like to be able to regulate after which time my drawn line starts to disappear, already after 1 second or only after 10 minutes… 🙂 So I guess, what I am looking for is a kind of reverse function for the drawing process.
Does anyone have any ideas?
I’d be over the moon if you did!
Cheers!