Bad image quality when using EPSG:3857 source

[hampuseng]

I find that QTiles does something weird with the images when generating tiles from a EPSG:3857 project.

This is an example how an area looks like in QGIS:

And this is how it looks like in the generated tile:

As seen the result is fuzzy and distorted. I guess this is due to some reprojection?

I should add that the source map is already tile based. I don't think I would have seen the same problems if it was a vector map.

In the source code I see that QTiles seems to do some reprojection to EPSG:3395 but I thought that EPSG:3857 was standard for MBTiles?

[kannes]

Look at the exact same tile, is it different?

You posted two images of different resolution.