RenderTarget has a ConvertCoords to convert from target coordinates to View coordinates, but not the reverse operation, and I'm needing it.
I'm doing an editor which has a zoom functionality that zooms the entire view, so everything on that view get intentionally pixelized with close zoom. But I have to draw non pixelized objects too, for example a text legend over something. For that I use the default view, and need to convert some view coords to screen coords.
In general, we're talking about coords conversion between any two views. That may be a function of sf::View. Receiving the coords and a view, converts those coords to the other view.