Controls if map decals should be rendered (1, default) or not (0). This setting only affects decals which are placed in the editor via the Env_Decal entity. By default this setting is set to 1 so all decals are rendered.
Note: It is recommended to keep this at its default value (1). Disabling rendering is only recommended for slow systems with performance problems.
Note: Effect decals which are spawned during game play (e.g. footprints or grenade craters / soot stains) are not affected by this setting!