Type – The image pre-filters suppress Moiré patterns and other artifacts by slightly blurring the image. Most filters produce visually almost equal results. Available filter types are: High Quality – This filter produces better anti-aliasing and DoF than other filters. It does not work with AI denoising.
Box – This filter has the most significant blurring of all the filters.
Tent – This filter offers a good tradeoff between blurring and sharpness.
Symmetric tent – This filter is a variant of the tent filter with bigger diagonal blurring.
Parabolic – This filter has the second most significant blurring of the filters.
Hann – This filter has low diagonal blurring and a smaller tail than the other filters.
Blackman-Harris – This filter is the sharpest, resulting in the least blurring of all the filters (except for None).
None – This option disables the filtering entirely, resulting in a perfectly sharp image. Width [px] – The filter radius in pixels. A larger value slightly blurs the image to improve anti-aliasing and removes the Moiré effect. The default value of 2.0 works fine in most cases. Highlight clamping – Clamps all samples to this maximum value before they are written into the frame buffer. This can help to reduce noise and improve anti-aliasing around bright light edges at the cost of bias. Setting the value too low results in visibly clamped highlights. Set to 0 to disable for unbiased, highest-quality output. | 
