Bryce itself provides the easiest, most adaptable and most accurate way to combine the elements. - create a 2D Face Vertical - place your background image on it (use only the ambient channel and set ambience to 100%) - disable cast shadows on 2D Face Vertical - resize the 2D Face Vertical to suit the dimension ratio of the background image - position and scale 2D Face Vertical behind foreground object/s and to fill the frame - render as normal With this method it is quick and easy to fine tune the position of the foreground objects and adjust lighting, etc. Because shadows are disabled on the 2D Face Vertical, you can place a background light to match any light source in the background image. The edges of the foreground object/s are instantly perfect with no problems from selection tools, etc. Seeing the result is as quick as seeing the render.