Solver
2D ideal magnetohydrodynamics — Orszag-Tang vortex on a
128² periodic grid. 6 channels f32. Mass, energy,
and ∇·B conserved to machine precision.
Renderer
Canvas 2D · viridis LUT · CPU compositing.
Bulletproof fallback for devices where WebGL2 is broken or
limited (older iOS, low-end Android, embedded WebViews).