I have some beautiful 1200x900 sky photographs from 3dTotal. How would I use one of these in Bryce as my sky?

Apply the image as a texture onto a 2D face and place it behinde all of your objects in the scene. Be sure to have it fit the borders of your window, and to have it facing your point of view. oooooooooooooor, you can always go the Photoshop route if you own a copy. if you go the first route, you'll need to mess with lights and all of that to get the right look. Hope this helps!!!

On the 2d plane make sure it is waaaaaaaaaaaaaaayyyyyy back in the scene or objects will cast shadows on it...;)

Actually, if you go to the materials editor-materials option, you can deselect shadows & stuff. :)

I put the image on a 2d plane, turn it sideways, then under materials I turn off recieve and cast shadows, turn the ambience to about 90, and turn the transparency to 60-70.

Rohr, you mean that for the 2d plane you can select to eliminate shadows on it? Really? cool!

Or you can use the photo as a basis for a lattice, and then again as the texture for the lattice. With transparency. Position it and you've got what I have in my "One morning in AD 925".

woodhurst, the ambience must be variable. 90 totally washed out the photo. 45 was good though. Erlik, I'm not sure I understand your technique.