hborre posted at 9:38AM Wed, 04 November 2020 - #4403213

It looks more like no one either never notices or didn't bother to pursue further testing. I wonder if anyone opened a ticket on it.

It's not a bug, It's just the way Superfly is. It's just that there was never any official explanation as to why renders would look different. Turning clamping off makes fireflies in renders with super high dynamic range lighting. The HDR images that are dark with one or more super bright points of light in them are the ones that show this the best. The fireflies are not render errors, they are HIGHLIGHTS that take a huge amount of time to calculate. If you let the image render for 100 samples or more you will see the patterns emerge and turn into bright highlights from the sun or small, bright lamps in the hdri. Using the background to light a scene works way better but the background image is all twisted around.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740