PTC commands
//working
ModelApplyAmbient 0
DrawModels 0
ModelApplySun 1
DrawWorld 0
LightmapsOnly 1
DrawSprites 1
DrawPolyGrids 1
FogEnable 1
ModelDebug_DrawSkeleton 1
ModelDebug_DrawBoxes 1
DrawSky 0
WireFrame 1
WireFrameModels 1
DrawGuns 0
DrawParticles 0
TextureModels 0
there are lots more.
Other:
ScreenGlowEnable
RenderDebug
LightMap
DrawFlat
LightmapsOnly
DrawSorted
DynamicLightSprites
DrawSolidModels
DrawCanvases
and more more more