[gdal-dev] Questions about MBTiles write support @ GDAL 2.1 RC4

[Brad Hards]

> I'm talking about zoom layers. E.g. when using gdal2tiles.py you choose what
> zoom layers you want to create. Now with the API when only one layer is
> created, many MBTiles readers will not show anything until you zoom in to
> the exact zoom layer that was decided to include. So the output MBTiles file
> doesn't really function as supposed to in a MBTiles reader/viewer.
Perhaps you need to add the overviews.

Brad