Hi, I was making some tests with filegdb raster from Region 5 - State (usda.gov)<https://www.fs.usda.gov/detail/r5/communityforests/?cid=fseprd1009698>, file https://usfs-public.box.com/shared/static/q96eev9gnsa9hw5bwpmwpmxerbdat0vi.zip I converted the data into GeoTIFF, added overviews, and noticed, that the GeoTIFF is very slow to browse with QGIS at small scales. I noticed that it is because gdal_translate creates an external .msk mask band, and gdaladdo does not create overviews for the mask. Is is somehow possible to create overviews for the .msk mask either automatically or manually? Or would it create a bad mask that would not match with the corresponding overviews of the data bands?
-Jukka Rahkonen-
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