Func null

func_null is a brush entity available in Mapbase. It is a brush version of of info_null. This can be used for creating texlights that don't have a visible brush in-game, such as for prop-based lights or accentuating lighting coming in from a window.}}

Because this entity isn't removed on compile, it still counts toward the edict limit for a split second until removed on map spawn.

Code:This entity uses the same C++ class as info_null. As such, the same behavior can be achieved in any game simply by manually setting a brush entity's classname to info_null.

Bug:Hammer will strip brushes from entities which are defined in the FGD as point entities. It also does not allow a point entity and brush entity to share the same classname, as it will only use the most recently defined version.  [todo tested in ?]

Alternatively, add an func_null FGD entry to base.fgd; it will spit out an error in the console when loading the map, but will otherwise be ignored by the game.

Keyvalues

Origin:

Origin (X Y Z) (origin) <origin>

The position of this entity's center in the world. Rotating entities typically rotate around their origin.

Name (targetname) <string>[ Edit ]

The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g. parentname or target).
Also displayed in Hammer's 2D views and Entity Report.

See also:  Generic Keyvalues, Inputs and Outputs available to all entities

Internal keyvalues used by VRAD:

Shadows (vrad_brush_cast_shadows) <boolean> (in all games since )

Determines if this entity will cast lightmap shadows.