Generating volume from the BSP brush
The BSP brush can be used to generate volumes that cover functionality like defining a spatial zone for something to happen (or not happen) inside. In later chapters we'll be using all kinds of volumes. For now let's choose a simple one, a PostProcess Volume. This volume type effects the coloration and focus of the image seen by the camera. The use of a volume provides a boundary for the effect.
How to do it...
Create a new scene and create a hollow cube, as above, with a pointlight inside it (hold L and click on an interior surface). The repetitive start for the last few recipes will help you get faster at this common process.
Highlight and apply any likely wall Materials from the Content Browser using Apply Material as we did before. You can copy Materials from one surface to another using right-click and choosing Copy then Paste.
Duplicate this room alongside itself by selecting it in the Top viewport and then hold down ALT and move it until the outer...
