I know this is not the Bryce Forum but I would like to know the difference. I got a couple of hints at the Bryce Forum but it was not what I really asked. So here it goes. I did a test render of two spheres with exactly the same texture. One was render with antialiasing normal and one with antialiasing draft. I could not see the difference between the two except that draft seem to antialias as it render ( no separate pass for antiallias) and it took almost 4 times longer to render. When I render to disk , at 300 dpi, I get a great resolution and detail. So, when would you use antialiasing draft??

well, I saw your message in the Bryce Forum and I had no idea. But now I am guessing maybe it is for saving an image that takes up less megabytes. Just a guess. It doesn't sound like a good reason for having a whole different type of rendering, but it could be possible. Or maybe it is there so that you can watch your image render and be able to see shapes in the image as it renders away. Ok, now I am getting weird. It is too late in the day. Sorry that I can't help ya Good Luck -Adam

As far as I know, draft rendering is supposed to be a quicker, lower quality rendering. I can't explain why it would take longer, or produce identical results. Photoshop filter such as blurs use draft rendering for a quick preview of your filter settings before you spend time waiting for a high quality effect. This is especially useful when you are working at print (300+ dpi) resolutions.

sure you didn't set the single at fine art render? Draft should take less time and shouldn't antialias. But a sphere may not be tyhe best object to use it on