I wanted to make an image out of strings, like if the threads of a shag carpet were extended, and dyed to match the colors of an underlying image. The strings hanging statically are no fun, so I added some wind, based on Perlin noise.
Here’s a gif of the result:
There’s lots of different options: how strong the wind is, how long the threads are, how stiff they are, what their initial positions and angles are, how much inertia they have, etc. But I’m pleased with this toy.