A solver adapter a world can drive: §37's contract plus the per-handle access
of SolverBodyAccess.
Both halves are required. §37 alone cannot move a solved pose onto a node —
it has no per-body read — and SolverBodyAccess alone has no world to
read from.
A solver adapter a world can drive: §37's contract plus the per-handle access of SolverBodyAccess.
Both halves are required. §37 alone cannot move a solved pose onto a node — it has no per-body read — and SolverBodyAccess alone has no world to read from.