the Twarchive

This is a record of a twitter thread, originally posted in 2020

Thew
@AmazingThew

Interference patterns from a small collection of scatterers

Thew
@AmazingThew

True art is that which cannot be shared, as the Platform Capitalists' video compression shreds it into unreadable sludge

They fear it

anyway here's some stills that are maybe a bit more legible than the video

Thew
@AmazingThew

You can generate these types of patterns p trivially. "Scatterer" here basically just means "waves emanating from a point." Just make a bunch of sines and sum them all up

Play with arrangements of scatterer positions, strengths, frequency distributions etc for wide variation

Thew
@AmazingThew

Also notably: you can produce a lot of very similar patterns by just drawing straight into Fourier space. The scatterers are all oscillating at similar frequencies so visually the result resembles narrow-band noise

Thew
@AmazingThew

Anyway this is all stuff I've been doing at work bc I'm writing an ultrasound sim

The weird noisy appearance of ultrasound images is actually interference patterns from scattering. Been trying to wrap my head around the physics for months lol

Making cool images at least

Thew
@AmazingThew

what if the oscillators oscillated

Thew
@AmazingThew

that's... genuinely the worst job I've ever seen twitter do on a video

this is proof of how cool it is

here's a still; you can just sort of imagine it looks like that except animated in a really interesting and complex way and also really good

Thew
@AmazingThew

y2k energy