Func group

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.

Entity key list

 * 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).
 * }
 * 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).
 * }
 * }