In the file. Bryce stores everything in the file. And once it starts rendering it just draws the things on the screen. Or in the separate picture file, as the case might be. If a texture had not been opened, it was not in the file. Now, if Bryce supported instancing and displacement, the situation might be quite different, I suppose. Also, I suppose that the interim calculaations are stored in the TMP file.

-- erlik