Change the shape of the scene from 'rectangle' to 'shed roof'. That's all..
almost 2 years ago
One can extrude Walls.. default like, the walls are drawn on the horizontal plane and extruded in Z direction. But there is the option to rotate the base plane to vertical..so that the extrusion would be in Y direction. So any kind of Roof should be possible. Somewhere in the the HowTo's there is a description. Lukas