Draws a single l3dnode (l3dmodels allow single or sub series of meshids), only when l3dnode is visible. Useful for greater control over mesh rendering.
for l3dmodels returns or sets which sub meshid is used as start, as well as how many meshes are drawn (default 1). l3dmodels default to all meshes being drawn. Has no affect on non-l3dmodels.