We've been working with 3DS for many versions back in the past, but this is the first project where we've been using Max 9 for a significant, detailed mental ray render. We've tried doing this with and without final gather maps, with and without global illumination, several other different render setting shifts in terms of quality, and yet cannot figure out why we're getting this frame-by-frame difference in the way lighting is being interpreted in the output.
We have a target camera moving along a path (which is what this is shot through): that is the ONLY animation going on in the scene. There are definitely only 2 different levels that we're seeing in the final output, one lighter, one darker. Small movie shows this:
Anyone seen this before with Max 9 and/or something similar? Any / all ideas would be GREATLY appreciated :)