「見山是山，見山不是山，見山祇是山。」
Seeing mountains, are:
mountains;
not mountains;
just mountains.

“Seeing is forgetting the name of the thing one sees.” - I forgot whom this was from.
But it’s also never something it's not. Your imagination is not mine. Nor mine yours.

「作畫必此畫定非知畫人」- 蘇軾
「然須知作此畫而竟不是此畫，則尤非畫人矣。其妙處總在旁見側出，吸取題神；不是此畫，恰是此畫。」- 袁枚

Painting is not exactly this, but yet precisely that. This code and that composition, both, all, neither, are mountains, really, are they not?

無山不似山？
No mountain is not a mountain.

p5.js may take a good few seconds to paint.

Press 1 to save png, only for Chrome, not Safari. But if you wish you can try with Safari. It tries very hard to paint layer by layer. Preview images are compressed.

License: CC BY-NC-ND 4.0