It seemed like it would be maybe an undocumented and easy way to get past the known methods of improving quality. Even if those 2 rays per pixel seemed like it would be very high quality, when rendering with MRQ you don’t care how slow it is, you just want to increase the quality as high as possible, or until the render starts to resemble the path tracer.
“the concept of ‘RPP’ is a little meaningless with lumen GI” ? But the guy from the video used those terms, plus he was also talking about Lumen.
And that said, I’m not sure which parameter from the " Lumen Performance Guide" would be the equivalent to “rays per pixel”.