Yes, onnetz, I expect something specific is choking Poser.

I've got 12 GB of memory. Poser.exe's memory issues aren't a problem. Poser.exe rarely even approaches a gig of memory usage on the performance monitor. FFrender.exe, on the other hand, routinely gets to 4gb, at which point, predictably, it quits.

So, yes. Settings. But what exactly? I don't, for a moment, think it has anything to do with render or undo cache or bucket size or number of threads, since these things really don't change the final outcome.

I think it's a combination of render resolution, render quality settings, and materials. Sure, I can render small, lower quality renders, but I want bigger, high quality renders. And poser can give me this. But not consistently. However, figuring out exactly which materials are causing the problem -- and how to fix it --  is giving me major headaches.

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PoserPro 2014, PS CS5.5 Ext, Nikon D300. Win 8, i7-4770 @ 3.4 GHz, AMD Radeon 8570, 12 GB RAM.