The purpose of BSP is to greatly reduce the amount of work the game engine has to perform in real time—to draw polygons on the player's screen.
BSP is a great tool to block in your map with. BSP is often used to quickly create and test playable space.
Yes. Although, you will need a 3D software application that supports UDK's plug-in, such as Autodesk Maya, 3Ds Max, XSI.
UDK CSG Operations for Brushes include the following:
Static meshes are simply the models in your level. If you open up any UDK map, 90 ...