At specific zoom levels the canvas starts breaking up at certain spots and becomes distorted

[Frozen Death Knight]

I don't know if my video is able to display the problem, but what basically happens is that when I zoom at specific percentages (i.e. 15%) I start to notice that the image becomes distorted and is not shown correctly. The canvas gets cut up into pieces based on height and some pieces get pushed to the side horizontally, thus breaking the image by displaying a broken view of the canvas. It also seems to happen at specific heights, since moving around your view also changes the nature of the distortion. Some other zoom percentages do not experience this problem of some reason.

 

 

[Chris B]

What's your Retina Rendering set to in Preferences > Performance? It looks like you're seeing the render tiles being disturbed and then not settling back. Does using High Quality (slowest) make a difference?

[Frozen Death Knight]

2 hours ago, Chris B said:

What's your Retina Rendering set to in Preferences > Performance? It looks like you're seeing the render tiles being disturbed and then not settling back. Does using High Quality (slowest) make a difference?

It was set to Automatic. I tried changing the setting just now and these were the results.

[Chris B]

I've just found an older bug report for a similar issue on macOS but that was related to hardware acelleration. You don't even have that enabled so it cannot be the same.

The only thing we could do is ask you for the file to see if we can reproduce at similar zooms - it might be the contents of your layers (if you have filters/adjustments) which is why I can't reproduce.

[Frozen Death Knight]

On 3/19/2021 at 1:17 PM, Chris B said:

I've just found an older bug report for a similar issue on macOS but that was related to hardware acelleration. You don't even have that enabled so it cannot be the same.

The only thing we could do is ask you for the file to see if we can reproduce at similar zooms - it might be the contents of your layers (if you have filters/adjustments) which is why I can't reproduce.

Sent it over now. Hope you'll be able to reproduce it! 

[Chris B]

Bah, I can't get it - even with your file. OpenCL on/off - doesn't matter. Rendering - doesn't matter.

I've tried every zoom % from 1 to 100.

Those render tiles should snap back almost instantly. Stabbing in the dark here but do you use a non-default Windows scaling option? Other than say 100, 125, 150 etc?

[Frozen Death Knight]

On 3/23/2021 at 4:12 PM, Chris B said:

Bah, I can't get it - even with your file. OpenCL on/off - doesn't matter. Rendering - doesn't matter.

I've tried every zoom % from 1 to 100.

Those render tiles should snap back almost instantly. Stabbing in the dark here but do you use a non-default Windows scaling option? Other than say 100, 125, 150 etc?

I recently installed Windows 10 from scratch because my SSD broke and I got a replacement. Right now I am looking at Display Settings. Scale and layout shows everything being at 100%. However, I think you might be on the right track regarding these settings, because I might have found the true culprit.

See, I happen to use more than one display for my PC; my regular screen and my Cintiq 13" HD screen. I use them both in extended mode so I can get a lot more screen space by working on one screen and checking other stuff on the other. When I disabled my Cintiq screen and went back to my project file I noticed that the screen tearing disappeared after switching between different Affinity documents. I have a strong suspicion that having multiple screens in extended display mode will result in these tears to occur.

If you happen to have multiple displays like a Cintiq available, please try and check if you can replicate my issue by making them an extended display.

[Chris B]

22 hours ago, Frozen Death Knight said:

If you happen to have multiple displays like a Cintiq available, please try and check if you can replicate my issue by making them an extended display.

Fantastic bit of detective work! I don't have one available but the team does. I'll ask them to try this now and report back  

[Chris B]

We've reproduced this with two monitors at different scaling settings. The app was in Window mode too - I will get this logged.