func_lod is an existing brush entity available with all versions of Mapbase.

Brush-built model that fades out over a specified distance. Useful for creating world detail that doesn’t need to be drawn far away, for performance reasons.



KeyValues

- Maximum Disappear Distance (DisappearMaxDist) <integer>
If specified, this would be distance at which these brushes should fade out completely. If 0, it will combine the regular disappear distance with the value stored in the 'lod_TransitionDist' convar, which is 800 by default.