Another cool trick, taught to me by Pidjy, is to make a lens flare, or explosion in PS, or PSP, or some other image editing app and make a matching alpha map and apply it to a 2D square. You can group that with a radial light and carefully position it on or near your unfortunate Poser figure and it should give pretty good results. This renders really well in Bryce, and if you are a "no postwork" purist you can truthfully say that no postwork was involved, since it was rendered in the original scene. HTH    Dan