Not really but you can do plop renders, there are some scene previeve options that will give you a render preview if you turn them on while you do your adjustments (3d cloud, sky room, tree lab ect..). You can use the gl feature turned on to give you realtime feed back. Depending on your hardware a preview render is alot faster then the nano preview is and will give you a good idea what you scene will look like. Carrara has a much faster render engine then bryce so its not a chore to do a quick semi realistic render.