Affinity Photo 2: View rendering gets culled at certain zoom out level

[faulknermano]

1. What Application are you using? [Designer/Photo/Publisher]

Photo.

1. Are you using the latest release version?
   (here's how to check)

Yes. I'm using it in Trial mode.

1. Can you reproduce it?
   (if you cannot then we may struggle to also, making it even harder to fix)

Yes. Please see image and afphoto file attached.

1. Open the afphoto file.

2. Zoom out several times. At a certain zoom level, part of the image disappears (seems like due to sampling). See attached gif, too.

1. Does it happen for a new document? If not can you upload a document that shows the problem?

I've attached the afphoto file.

•    What is your operating system and version (Windows 11, OSX Ventura, iOS 16 etc)?

Windows 10.

•    Is hardware acceleration (in Preferences > Performance) ON or OFF ? (and have you tried the other setting?)

Hardware acceleration is ENABLED. I've also tried Disabling it, but it doesn't have any effect.

•    What happened for you (and what you expected to happen)

The drawn lines that are disappearing are thin, but it it is reasonable to expect them to render. If I view this in XnView, for example, or other photo-editing software, I can see the lines. It's only in Affinity Photo that it disappears.

•    Did this same thing used to work and if so have you changed anything recently? (software or hardware)

No, this is my first trial of Photo.

 

Thank you for reading.

untitled.afphoto

Edited March 6 by faulknermano

[MEB]

Hi @faulknermano,
Welcome to Affinity Forums
This is most likely caused by the way we render images on screen (use of mipmaps) I believe. I'm passing your file to the dev team for comments and will get back to you. Thanks for reporting it.

[MEB]

Hi @faulknermano,
How did you created this pixel layer? Was it exported from other app and imported in Affinity (if so which app), copy/pasted from somewhere, etc?
If you right-click the layer with the image/house plan and select Rasterise, it should fix the render issues.

[Pšenda]

1 hour ago, MEB said:

Rasterise, it should fix the render issues.

Alternatively, just change the position of the image.

[faulknermano]

Hi @MEB, thank you for passing the report on.

Firstly, rasterising works well; it solved the culling issue.

Quote

How did you created this pixel layer?

It was done in AFPhoto, but that had also been exported as PSD, and then re-imported back into AFPhoto as PSD.

Your suggestion about rasterising made me remember another that I had resized the afphoto document as I drew.

If I open the problematic afphoto file now, and then resize it to something like 8000x8000, the culling problem is solved, too. But I can't seem to reproduce step-by-step on how I got the document in this state.

At any rate, if the file contents themselves is not of help, I guess it's just one of those things. At least there is a method of recovering it and it's not a show stopper. Thank you!

 

 

[MEB]

Do you remember if the issue started after it being re-imported as PSD or was already behaving like this before that?

[faulknermano]

8 minutes ago, MEB said:

Do you remember if the issue started after it being re-imported as PSD or was already behaving like this before that?

I can't remember precisely, but yes, it is most likely that it was *after* being re-imported as PSD, because I had been testing interoperability with PS at the time. I had not saved the document in afphoto format until I submitted the bug report.

[MEB]

Ok. Thank you for the additional info. Much appreciated.