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Black dot artefacts in stitched HDR panorama

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Hi Affinity team,
I created a 32 bit panorama out of 5 EXR files (64MP in total). Stitching worked reasonably well and the preview showed no problems. Then I rotated the panorama slightly, cropped the area to export and exited the panorama Persona with the option enabled to fill missing parts of the panorama (using "Inpainting").
Well, first of all, it didn't really fill the two missing corners the way shown in the tutorial video - it just filled them black.

But more, on the left hand side of the panorama there appeared a somewhat regular pattern of black dots artefacts. Here a detail view:
First I thought it might just be a display error but the dots also appeared in the final JPG panorama image.
Please find a larger crop of its top left corner attached.
This is reproducible. I just spend another half an hour to process the panorama again, and again it ends up in the Photo Persona with black dots on the left hand side. :(
Affinity Photo Trial (Win)


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Hi Chris,


I uploaded the five RAW files to the dropbox.

Just to recap what I did:

I batch processed them to 32 bit EXR files (with no macro), then I imported the EXR files to the "New panorama" widget cropped and declared the panorama finished with Inpainting turned on.


(I just realized these EXR files are HUGE, so I'm not going to upload them.)

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Hey Matthias,


Thanks for the instructions and files. I've had a slightly different result (see attached). I'll add all this to the original bug report. Thanks for your time :)


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