Also, let me apologize, (in advance, but definitely "tounge-in-cheek" ๐ ), for the PixPlant thread as well:
http://forums.sketchucation.com/download/file.php?id=40268
I did not mean to imply that PixPlant can only be used with certain renderers. I suspect that the PixPlant images can be used with most modern renderers.