OK, so maybe this is a documented bug, but I've just found it the hard way, losing 17hrs of f***ing render time. If it is documented then I guess it serves me right for never reading any documentation! If you want to check it out, this is how... set up a simple scene in Bryce and light it with a light source. Set the light source to "gel" / "procedural" and then slap some outrageous colours on the light source texture. Click OK, etc. Render it and all works fine - the scene is lit with your colourful light. Now go back and un-check the "gel" option. Render the scene again (use superfine full render so you can catch what's happening) - but stop it say 75% of the way through. Save your scene. All fine so far, but... Load the scene up again and press "resume render". The render will resume, but it will have automatically checked the "gel" option on your light source, resulting in a stippled mess as it attempts to render the rest of the scene using different parameters! The only solution - unless someone knows different - is to either use a pure white gel for gel-less lights or render all your stuff in one go! Sigh. I hope this pic is worth it... >>>:[

Yes, I have had trouble with the gel automatically checking itself back on. Once I removed a gel, set to render and when it was done the gel was back on. I thought I just forgot to remove it, so I went back and unchecked it. I watched the thumbnail as I hit render. It popped back on by itself as the render started. I'm not sure if it has something to do with other lights in the scene having the same gel and acting like a master or something.???

Yeah, maybe. It's a lot like the soft-shadows bug, where it keeps un-checking soft shadows when after you've loaded a preset sky. Let's hope this'll be sorted in Bryce6 ;) Anyway, at least I know now. I'll just go and set this 24hr render of again!!! :>[]

Hold on folks every time I start a scene that I have saved with a light or two(like have to go to day job)and I would come back later on that night and open the scene I have to go in and change the lights back to no gel or shadows everytime I save a scene and have to come back...I hope they fix this in the next version...Also Tuttle sorry about the render I have had that happen to me and had to start all over it would be nice if we could figure out how to svae the render so you can start or stop at anytime...

If you need to ever remove the gel, set the material to all white. This will eliminate the hassle of having to change the gel everytime. I agree it's a pain, but at least there is a work around.