Game Development Reference
Drag the builder brush's edges unil it's of the right size. Make sure that you also check the
side view, and make the brush 512 units tall.
Click CSG : Add , and your box will appear in the 3D view.
The checkerboard on the surface, iles a lot more on a
Now resize your builder brush in both the top and side views to it just inside of the addiive
brush and hit CSG : Subtract . If you fly the camera inside the cube you can see that