Frequently, after several hours of rendering, Iray automaticily starts all over again with iteration 1. Very frustrating. Any ideas what can cause this problem?
Are you doing anything in the rendering window when this happens, such as changing any of the tone mapping controls in the slide-away left panel of that window?
You mention "several hours." What are the progressive settings in the Iray render panel, specifically the Max Time?
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Are you doing anything in the rendering window when this happens, such as changing any of the tone mapping controls in the slide-away left panel of that window?
You mention "several hours." What are the progressive settings in the Iray render panel, specifically the Max Time?