Optional ReadonlyboxesA box buffer shared with other refits (GpuRefitBoxPool: their
encode calls must not overlap); without it this refit has its own,
sized for its mesh.
Optional ReadonlydiagnosticsRead the stats back (a frame or two late) into latestStats, one small
readback per copyStats the caller records. Off by default. ddgi-core
promises hosts no readbacks frame after frame: its top level turns this
on only in stats mode, and its deforming meshes copy at most once every
15 frames each (DECISIONS 2026-11-10). Correctness never depends on it:
a refit that gives up is repaired on the GPU in the same frame either way.
Optional ReadonlykernelsKernels shared with other mesh refits; without them this refit compiles its own in prepare.
Optional Readonlylabel
Options of one mesh refit: GpuBvhRefitOptions, with the shared kernels of the mesh refit.