RLMeshSession
A Session borrows its model/server until free. Local envs/factories stay exclusively leased until free; close never closes the model.
typedef struct RLMeshSession RLMeshSessionThis reference describes unreleased code on main; no release documents it yet.
A Session borrows its model/server until free. Local envs/factories stay exclusively leased until free; close never closes the model.
typedef struct RLMeshSession RLMeshSession