WebGPU-based black hole raytracer with gravitational lensing

Rust WASM + WebGPU compute shaders + Next.js

Geodesic raytracing around Schwarzschild black hole

Gravitational lensing of Milky Way background

Accretion disk visualization

Elliptical planet orbit with Keplerian dynamics

Interactive camera controls

Leapfrog integration in geometric units (r_s = 2) 2000 integration steps per ray Schwarzschild metric: u'' = -u(1 - 1.5u²) Event horizon at r = 2M 2M

# build wasm files first

cd wasm &∓& wasm-pack build --target web --out-dir ../public/wasm --release
just src dev

# or for production
just src prodd

Visit http://localhost:3000/blackhole

Left-click drag: orbit camera Scroll: zoomm

GitHub Actions auto-deploys to GitHub Pages on push to main Enable Pages in repo settings: Settings > Pages > Source: GitHub Actionsctionss