mastodontech.de ist einer von vielen unabhängigen Mastodon-Servern, mit dem du dich im Fediverse beteiligen kannst.
Offen für alle (über 16) und bereitgestellt von Markus'Blog

Serverstatistik:

1,4 Tsd.
aktive Profile

#generative

2 Beiträge2 Beteiligte0 Beiträge heute

Test renderings from an algorithm I wrote to generate mosaics. It came from being unhappy seeing image mosaics that are just pixelations - real roman mosaics used the Opus Vermiculatum style en.wikipedia.org/wiki/Opus_ver , tiling along edges. Roughly, this calculates the best candidate edge points using the Sobel operator, places pairs of light/dark tiles there (slow), then grows remaining tiles from those (fast) using the underlying image colour from the square centres, while trying not to overlap entirely. #creativecoding #generative

Original images from Wikimedia Commons.

I don't want to hijack @jasoncoon's thread[1], so I'll start this one.

I was speculating on the math behind Jason's expanded Fibonacci LED discs. Each LED is at

r = n^exp
θ = 2πn(2 - φ)

For the Fermat spiral in Jason's classic discs, exp = 0.5, so r = sqrt(n). For expanding spirals, exp is larger.

Here[2] is an animation of LED discs where exp varies from 0.5 to 1.0.

[1] leds.social/@jasoncoon/1149140
[2] editor.p5js.org/10.uses-mender

🧵 1/N

#p5js#math#LEDs