I have been working on texturing/lighting a model of a Mazda RX8 over the past few days, using the Cycles render engine. I generally work with 3000 samples (at 1440p) for renders and 200 samples for previews. Adjusting these two values has worked perfectly until about an hour ago. Now, regardless of what the two numbers are set to, my previews and final renders are hard limited at 4 samples. The Render tab still displays the number of samples I want, but Cycles seems to ignore them. After trying to troubleshoot the problem myself for awhile I decided to ask for advice on here.
So, is there some function I may have inadvertently activated which overrides the options set in the Sampling section of the Rendering tab? If not, do you have any ideas as to what might be causing this problem? I have no memory of altering anything that would have caused this to happen.
Also, I’m using the Supported feature set for rendering, using GPU Compute with a 1GB GDDR5 Nvidia GeForce GTS 450, and a 3.2GHz 4-core AMD Phenom II X4 840 processor. Note, however, that these have been my computer’s hardware since long before I began working on this project, and rendering worked normally up to this point.
Any help would be greatly appreciated, as this is hindering me from fine-tuning anything!
(The attached screenshots both use the settings listed in the preview screenshot.)