tga jpg dds materials mtr fonts dat 2 The origin of this object in 3D space The classname of this entity. This must be a recognised class defined in one of the DEF files, and governs the overall behaviour of the entity The displayed name of this entity. This can be arbitrary, but must be unique across the entire map The direction this entity initially faces. Generally applied to AI or player_start entities. The displayed model or particle system for this entity. For a func_static or other entity type which can have brushes as children, this key must be set to the same value as "name" if brushes are used The model or particle system to be used when this entity is lit (i.e. for torches). The model or particle system to be used when this torch entity is extinguished. lights fogs