// Animation
Spacetime lattice
A symplectic N-body merger, with the warp lattice and the chirp for free.
Eight planets on an honest inspiral around a black hole: real angular-momentum damping, relativistic precession, gravitational lensing, and the LIGO chirp as the merger closes.
What it uses: @flare-engine/simulation for the symplectic N-body integrator and the gravitational-wave ripple
pool, @flare-engine/math for the seeded layout and easing, @flare-engine/core for the loop,
@flare-engine/particles for the debris, and @flare-engine/render-web + @flare-engine/postfx
for the surface and the bloom-plus-aberration chain.
Want to build one? The guide rebuilds it from first principles, and is explicit about where the engine ends and this site’s own code begins: Showcase: Spacetime lattice.