Func group

This page is not finished
You can help by editing and extending it.

Func group is virtual entity used to group brushes and patches together for convenience (selecting, moving, copying, etc). Also func_group can set explicit compiler-related entity keys to it's brushes. Regular entities cannot be grouped with func_group.

Important: When map is compiled, all func_group entities are merged into worldspawn.

Entity key list

Key	Description	Default value
Luxel scale	_ls	Lightmap pixel (luxel) size is scaled with this value. Lesser = better (luxel size cannot be less than 1 unit). Typical values are: 0.5 (double lightmap reqolution, high quality), 0.25 (quadruple lightmap resolution, very high quality), 2 (half lightmap size, low quality). Note that this is multiplier to default luxel size set by material or map build script.
Cast shadow group.	_cs	See shadow groups.
Receive shadow group.	_rs	See shadow groups.
Vertical texture projection	_vp	Forces a vertical texture projection to be used instead of brush/model/patch base UV coordinates. A value is size of texture in game units. Typical values are: 128, 200, 400 etc.
UV Scale	_uvs	Scales U/V coordinates. For fixing badly scaled terrain models.
Smooth normals	_np	Sets normal smoothing for entity brushes. See normal smoothing.
Patch meta	_pm	Forces curves to be baked as regular models.
Non solid	_ns	Disables BSP planes generation for entity brushes. Use on never-reachable surfaces or surfaces that will use BIH collisions (like brush terrain).