Creating a brush entity

Brush entities are built from brushes and utilize their geometrical volume or physical features (i.e. for an area to effect or for a button). They include things such as triggers, conveyor belts, and rain.

How to create a brush entity

1. Create a new world brush.
2. Select it in one of the 2D views.
3. Right-click on it.
4. Choose Tie to Entity from the right-click menu. (Or press Ctrl+T)
5. Select the type of brush entity to create from the Class list.
6. Click Apply.

The standard for every brush entity is Func_detail, which is solid for everything.