Perfect Dark Source: trigger_zone

Entity description

A brush entity that defines a hill for the game mode King of the Hill. As a brush entity, the entity is limited to a convex brush shape (which can be a single brush or several grouped).

Texture the ethereal walls with the material \materials\pdark\game\zone.vtf. Place the hill walls at least one unit away from walls.

The trigger_zone like to have 128 unit factor scale in each direction. The ground texture must be NoDraw and the top face texture must be NoDraw.

You can add some brush with NoDraw to custom effect area of the Hill; you just have to select all of them and set them to trigger_zone.

Here is the best way to set it: