I just found this on the Arduino-Forum.
Link to the original post + code from DedeHai: http://forum.arduino.cc/index.php?topic=396769.0
I like the “Sparkle Paint”. It shouldn´t be to hard to rewrite it for FastLED.
http://www.youtube.com/watch?v=PYAIwoRsGbo
Chaser just like “Worms in crawling” (●ˇ∀ˇ●)
@Stefan_Petrick it would appear that they are just creating random fading speeds. But addtionally it appears that it is fading up to a certain brightness and then back down. But the key is the speed. Should be easy enough. I use random fade times in alot of my programs but have not done it at the pixel level. Yet another array needed… thank got for teensy.
Still patiently waiting for the fade to brightness. Its easy to fade down but fading up requires me to keep the hue to be able to ensure the color is proper at all levels…
@Justin_Eastman Where is the problem when fading up based on RGB fractions? The limited 24 bit color space? If fps allow it: Try to apply some (temporal) dithering on low brightness levels where precision matters.
I have had issues trying to get nscale8 to go up successfully… I always have to do HSV and save H and V and manually do it. I don’t use dithering at all, it seems to mess up my patterns a lot. I think it works great for high density LEDs but not individual. Admittedly, I really am not sure why, but some my patterns go haywire when I have dithering on.
Ah, I remember…
Any News on the way to get this speed with FastLED ? I’ve emailed you Stefan 
! I’ve worked a bit on FastLED, I’m still looking to improve perf and share it 
@Mathieu_G please send the email again to pitt DOT tesla AT gmx DOT net, thanx!