Luxel
(Redirected from Mat luxels)
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A lightmap pixel. The "lightmap scale" or "luxel scale" is the number of units per luxel.
In 
Source and 
Source 2, luxels can be visualised with mat_luxels 1.
Bug:This command is broken in 
, 
[confirm] and 
Source 2013 Singleplayer and doesn't display correctly, due to missing shaders (see GitHub issues #3803). This issue is not affected in Team Fortress 2 branch games (
, 
, 
, 
, 
), most Source 2013 Multiplayer games and both legacy and 2025 version of Source SDK Base 2013.Remains unfixed on Half-Life 2 (20th anniversary). (tested in:
, 
20th, 2012 build)Bug:This command crashes the game on 
Postal III when enabled.