sounds like a complex render. I had bryce get stuck on my images too. I had one that would need 4 years to render on my old machine. On my new machine it rendered perfectly fine. Does halfway mean at +/- 50% of the render or at 50% of the a certain pass? Here aresome rendertips: 1. When you render always put spatial optimization at high. It can double renderspeed sometimes compared to a low setting. The ony case where it causes problems is when you are using a huge amount of metaballs. than you might loose some polygons somewhere and get a black spot instead, but when you are using normal objects it is ever a problem. 2. Never use a volumetric world if you want a 'fast' render. 3. Volumetrics are slow. use them with care and only when they are necessary. 4. Have a look at the raydepth (shadow-rays) in the render settings. it is usually at 6, but if you don't need reflections of reflections of reflections of reflections of reflections of reflections you can set it to a lower setting. It can really speed up rendering in some cases. 5. Only use internal reflections if thay are really neccesary. 6. Only use light-gels if they are really neccesary. 7. All premium settings are slow.

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