Optional ReadonlycountEntries from start, as a draw range's count (clamped to the entries there are). Default all.
Optional ReadonlyindicesVertex per entry; omit and entry i is vertex i.
Optional ReadonlymodeDefault 'segments'.
Readonlypositionsx, y, z per vertex.
Optional ReadonlystartFirst entry, as a draw range's start. Default 0.
Segments: BvhPointsInput and how its entries pair up.