What you need to do is in Bryce select the object/model you wish to alter in Photoshop and only that model. Then change the rendering from Perspective Rendering to Mask Rendering. This will render in Black and White. Your model will be white while the rest is black. Load the final render and the Mask render in Photoshop and copy/paste the Mask Render over your final render. Use Select/Color Range and set to 200%..select the white area. (Make sure you are on the Layer with the Mask Render when doing this) Then go to the final render layer and with the selection going do a copy/paste. Now you should have 3 layers...your final render, Mask render, and the object you wish to alter. You can then delete the Mask render layer and do from there with your alterations. GeorgeD