Base Image / No image sharpening
SuperRes Strength: 1
SuperRes Strength: 4
SuperRes Strength: 4 + Radius: 1.00
The source I used actually has aliasing already in it. NNEDI3 miraculously anti-aliases the image and SuperRes brings back the aliasing. Anyone know why that is?
For fun, I set image upscaling to softcubic 100 and doubled the image.
Base Image / No image sharpening
SuperRes Strength: 1
SuperRes Strength: 4
SuperRes Strength: 4 + Radius: 1.00
And added fun, I compared
Adaptive Sharpen set to 1.5 and SuperRes Strength: 1 and Strength: 4 + Radius: 1.00. There's a lot less ringing in SuperRes and the lines are closer to what you would expect (i.e. not horrendously thick). There's still aliasing regardless of settings though. Upping the radius only provided a marginal decrease in aliasing at the cost of marginal blurring.