I just pushed a new version once again, with these improvements/additions:
- Added shadow scale option (increases shadow resolution)
- Added settings for the number of MSAA samples and coverage sampling (that is, CSAA or EQAA depending on your GPU)
- Mitigated issues with large screenshots (taking a screenshot should never crash now, but it might still fail at very high resolutions or settings – it will report that failure though)
- Changed scaling order, fixes some sharpness issues
A few words on performance, according to my testing: Starting from a base setting of 3840×2160 with bicubic scaling at 60 FPS I get a GPU usage of 66% on my 770.
Increasing shadow scaling to 4 gives a very marginal increase to 67% (basically free on my system). Setting it to 8 goes up to 70%.
Going from the default 4xMSAA to 16xCSAA increases GPU usage from the 66% base to 70%. Worth it in my opinion. 32xCSAA (that is, 8 MSAA samples + coverage AA) goes up to 80% and the improvement is debatable.