Pixel-shear when rotating

[ARM]

When rotating an image in Affinity Photo I get small feint lines through the image. I think it is pixelation or pixel-shear caused by the rotation.

If I do the 'rotate' action in another app, such as Windows Photos, I get a clean rotation without getting any lines through the image.

[Chris B]

Hey ARM,

It sounds like you're referring to the rendering tiles. This is actuall by design. However, in the current beta, we have implemented OpenCL hardware acceleration for those of you who have discrete cards. With this on, the rendering is much faster and the tiles are pretty much a thing of the past.

[ARM]

Thank you Chris B. I don't fully understand what you mean by 'rendering tiles' but yes that sounds relevant because there are rectangles with (what I call pixel-shear) on both sides so the lines I'm talking about appear at regular intervals across the image. I tend to use a Dell XPS13 laptop, so reasonably modern, but agree a desktop machine with dedicated high performance graphics card is better for work like this.

Thank you for taking the time to give me feedback. We all live and learn. Cheers!

[Chris B]

Essentially, the screen is split into segments (or tiles) and they allow for much faster rendering but the downside is that you can see the visible tiles when you rotate, for example.

It might be worth trying the beta and enabling OpenCL (if you can) and see if this solves the visible tile feedback you're seeing