View source for Func viscluster

{{otherlang2|
ru = func_viscluster:ru
}}

{{Base brush ep2|func_viscluster|internal=true}} It allows you to manually tell [[VVIS]] that the [[visleafs]] inside its volume can all see each other and should be treated as one. This is useful in large open areas where visibility calculations would otherwise take a very, ''very'' long time to complete. Poor use may be [[expensive]] for in-game performance. It should be textured with <code>tools\toolstrigger</code>.

{{intent}}

{{note|This entity does ''not actually'' change the location or number of leafs in a map. Hammer's [[portal file]] ''says'' this occurs, but commands such as {{ent|mat_leafvis}} show the leafs to still be intact.}}

{{warning|The brush should not cross the surface of a [[Water (shader)|water material]] or an [[areaportal]]. If it really does need to be used over water, bring the brush level with the surface of the water on one side, and then create a second, separate <code>func_viscluster</code> on the other side. Never allow a <code>func_viscluster</code> brush to cross a water plane, or ''very'' strange things happen.}}

==See Also== 
*[http://www.youtube.com/watch?v=TzUBDMuVQmA Viscluster video tutorial]
*[[Visibility optimization]]

[[Category:Optimization Brush Entities]]