Texture filtering always seems to produce fuzzy textures for me, so I just switch it off for the whole scene before rendering. SVDL does a free script for this. I turn it back on if anything needs it - which is almost never.

Did you try turning down the Minimum Shading Rate for your final renders? Most actors/props have the default shading rate of 0.2 (in properties), so making the render setting any less than 0.2 won't make any difference. Increase the Irradiance setting to maximum (which means maximum quality, or minimum cache size). And increase the pixel samples - I use 8 for final renders, as I see hardly any improvement at higher settings.

I now always leave the post-filter pixels at 1, because if it's 2 or higher I always get short horizontal lines of unrendered pixels at the bucket boundaries.

You may already know most of this, but just in case...

Izi
:bigsmile:

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)