Help with creating a noise pattern

dllnoah · December 10, 2019, 12:41am

Could anyone suggest how to generate something like this

https://www.youtube.com/watch?v=H9V0Dc_6hv0

Thanks

wizard · December 10, 2019, 7:28pm

This is the source mentioned from the comments, it could be ported (with some effort):

gist.github.com

https://gist.github.com/StefanPetrick/96574043d6425cc4f3ee39a2245ac965

Noise_smoooooth.ino

/*
  A FastLED matrix example:
  A simplex noise field fully modulated and controlled by itself
  written by
  Stefan Petrick 2017
  Do with it whatever you like and show your results to the FastLED community
  https://plus.google.com/communities/109127054924227823508
*/

#include "FastLED.h"

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I glanced at the code, not really sure what it’s doing or why its called noise. Maybe some kind of gaussian or perlin noise generation.

The display seems to add/blend some layers together. Something similar looking could be made with various waveforms overlapping, not true noise, but similar looking. Search for plasma effects. Something like this:

https://www.bidouille.org/prog/plasma

Johnny5canuck · December 24, 2019, 9:09pm

FastLED has a built-in perlin noise generator as well as supports the use of palettes, so that you can swap out the palette without having to change your HSV code generation. They’re both a thing of beauty.

As for plasma, that’s a lot of fun too, and bidouille.org is one of my goto web sites for that.