Hi Vasquez! Yes. I guess what is in Bryce by default can surely be used! Also there's an extra set of primitives (I think the link is at Brycetech's site) which has rounded cylinder, rounded cubes, rounded cones. Those can be used too. Bringing in primitives and working with them isn't prob as long as you share it with other challengers. But please let's not get into a what is a primitive and what would be a complete imported object. I'm sure all of us know the difference and can act accordingly.