Solved Canvas rendered very poor quality image
The image is OK in HTML5 so this isn't a issue with the code/image itself.
Here is the part that renders the tile:
this.context.drawImage(tile.image, tile.xwidth, tile.yheight, width, height);
Any ideas what should I try?
I think the issue is with using context.scale. If I remove that the image will be sharp again but it brakes the logic. Any ideas how can I go round that.
Answering my own question. By multiplying the drawImage coordinates by the zoom factor helped to solve it. Is this a bug of QML or something that I have read from the documentation?