The List3D is the main rendering list, it contains l3dnodes that represent visual items. It is organised in l3dsets l3dlayerids and l3dviews. l3dviews can render l2dnodes thru special commands as well.
The l3dlist the buffermempool for per-frame results. Various limits such as l3dset, layer and perlayer draws influence its useage. You can alter some of these limits and the poolsize at runtime. However these are critical operations and should only be looked into if you exceed limits, or had quits with error messages regarding buffermempool.
o-+ l3dlist o-- bonecontrol o-- frustumobject o-- l3dbatchbuffer o-- l3dlayerid o-+ l3dnode | o-- l3dcamera | o-- l3dlevelmodel | o-- l3dlight | o-- l3dmodel | o-- l3dpemitter | o-- l3dpgroup | o-- l3dprimitive | o-- l3dprojector | o-- l3dshadowmodel | o-- l3dtbterrain | o-- l3dtext | o-- l3dtrail o-- l3dset o-- l3dview o-- morphcontrol o-- particle o-- skybox o-- trailpoint