Just a general question in case I come to the point one day where I use the ARM Cortex M4 processor to the full and long for mor RAM/speed. What is the most powerfull processor FastLED supports so far? (Not that I see or even could imagine that need for an upgrade right now, but the same I said after coming from an Arduino Uno to the Mega…)
The Teensy can be overclocked to 144Mhz - but it’s mildly meaningless as its quicker speed for speed with the Arduino anyway
Even a stock (not overclocked) Teensy 3.x is pretty fast.
Indeed, Mark. I am more than happy with the Teensy at the moment, really, I am just realistic and see that after a 16x16 comes a 32x32 (already on the way to me right now 
and after that it is most likely something BIG I want to play with. But ok, I will stay calm and do one step after the other.
What about using multiply processors, and share the “random” seed and other information such as x,y,z-coordinates between the processors?