Is there some documentation on how to use Sharp Isotropic Filtering in the Maya File Node?
The sharp isotropic filter is the default now used for the maya file node in V-Ray 5. The Maya default filter is Quadratic and we translate that to our sharp isotropic filter.
There’s no other settings exposed for the moment, and I think we have a mention on the docs about that and additionally that you can overwrite it with the extra texture filter attributes.