Is it me, or does it seem as if FXAA only AAs the areas that aren’t affected by shadows?
I’m in Linear mode, Deferred rendering, Distance Shadows.
Both screenshots are using FXAA set at Quality setting, and it seems to me that only areas not affected by shadows get the AA treatment.
Look at the arrow objects and the left wall where it meets the floor. (Please open them in 100%)
FXAA works by blurring areas of high luminance variance. It’s looking for two pixels next to eachother that are past some threshold of brightness difference. Stuff that’s in the shadow is dark enough that it doesn’t pass that threshold anymore.
Oh. That’s… unfortunate. In the scene above you can clearly see that the purple character is aliased when not in the light and anti when in light. I thought it was a shadow map issue, causing the FXAA to fail by being applied later. But then i though “but FXAA is a post process thing.” So i though it would be applied throughout the scene.
