Well, far be it from me to correct or undermine His Eminence's advice,(being a heretic and all) but if I wanted to make spaceship greebles using an all Bryce solution I would consider using many of the shapes in Bryce's Imported objects library.      You could arrange cubes, cylinders, octagons etc. and do a top view altitude render in a square document. Then you could apply the altitude render to a terrain/lattice of the same resolution. You could also apply any materials you wanted to the various shapes and do a regular top view render which you could apply to the terrain/lattice as a texture bitmap. The advantages to using a terrain are that you can easily add damage to your greebles, or ship's skin, and the edges are already naturally beveled. Then you could finish it off by adding some of MadMax's "smartpipes" for conduits and piping. This is a topview render of a greeble terrain I made using only native Bryce objects. Hey Bryster ;-P