Grains, Too

Grains, too

The simplified form of axiom and rules (without color):

 // Grains 2, after P. Bourke
axiom: Y                     
rules:                       
  X => X[-FF-F][+FF+F]FX  
  Y => YFX[+Y][-Y]XFY       

supercollider audio rendering

link to render

https://anvaka.github.io/lsystem/?code=%2F%2F%20Grains%202%2C%20after%20P.%20Bourke%0Aaxiom%3A%20Y%0Arules%3A%20%0A%20%20X%20%3D%3E%20cX%5B-FF-F%5Dg%5B%2BFF%2BF%5DdFX%0A%20%20Y%20%3D%3E%20eYFX%5B%2BY%5D%5B-Y%5DXFY%0A%0Adepth%3A4%0Adirection%3A%20%5B0%2C%201%2C%200%5D%0Aangle%3A%2027%0Aactions%3A%0A%20%20c%20%3D%3E%20setColor%28%27green%27%29%0A%20%20d%20%3D%3E%20setColor%28%27lime%27%29%0A%20%20e%20%3D%3E%20setColor%28%27gold%27%29%0A%20%20g%20%3D%3E%20rotate%280.2%29