Four-point buoyancy field
Pilot the swell
Sail through all three gates. TSL displaces long directional wave trains while four CPU hull probes derive heave, pitch, and roll from the same authored demo field; inject a flat proxy to see the worlds separate.
Field instruments
Helm
The benefit: the GPU surface and CPU hull consume one authored sea state with no per-frame readback. Canvas rendering appears only as a labeled compatibility fallback.