r/ItPlaysBadApple • u/Uriopass • Nov 27 '24

I made this Bad Apple on Earth

https://youtu.be/Pyy7B2vaYMM

The final result isn't as good as I had hoped but my brain has melted from too much GPU code. Hope you enjoy, still!

27 Upvotes

93% Upvoted

4 comments sorted by

7

u/Leon3226 Nov 27 '24

Damn, that's trippy, but impressive. How did you do that?

9

u/Uriopass Nov 27 '24

I downloaded satellite data of the whole earth and compared each frame's gradient map to every place on earth and kept the best match. It's all coded on the GPU to get good performance, but it still toon 30h to render the 6000 frames.

3

u/The1stSam Nov 27 '24

damn thats impressive. what lang did you use?

4

u/Uriopass Nov 27 '24

Rust and the wgpu crate (WGSL kernels). Parallelizing was particularly easy thanks to the borrow checker although most of the compute is on the GPU anyway. Here's a link to the GitHub but it's throwaway code so don't expect much: https://github.com/Uriopass/earthfinder