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Posted

Hi,

 

Photo allows to specify "custom palette" in Export.

Unfortunately, I did find any way to specify which actual palette to use, and Photo always throws an error:

Any ideas how to get this working?

To add: this is no issue about saving the file. This issue is that "custom" does not work. If you use "preview", you can cycle through the settings, but customs never gives anything except empty canvas in preview. So the issue is before saving.

 

Mac version

 

Screenshot 2022-04-15 at 11.05.01.png

Screenshot 2022-04-15 at 11.10.28.png

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

Posted

Just found:

unfixed since 2017

 

 

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

Posted
7 hours ago, NotMyFault said:

To add: this is no issue about saving the file. This issue is that "custom" does not work. If you use "preview", you can cycle through the settings, but customs never gives anything except empty canvas in preview. So the issue is before saving.

For me, if I use Preview with Palletized & Custom, the Export preview window is stuck showing a "Generating Preview" with a spinning gear icon, so it is not just empty, it never finishes generating the preview.

All 3 1.10.8, & all 3 V2.6 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7
A
ll 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7

  • 8 months later...
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Posted

This issue with not being able to export palettized PNGs with the Custom setting still exists today, in Affinity Designer 2 version 2.5.5.

It prevents me from switching to Affinity Designer. Pixelmator Pro does this fluently, creating very small, perfect 256 color images.

Posted

Another twist in the story. JPEG xl allows a far improved version of paletized files. Affinity can export as jpeg xl, but does not allow to choose or influence the compression method.

it is high time for a major revision of export and full support for current advanced file formats (looking at heic/heif, jpeg xl, log, PQ, hdr etc).

  • choose uncompressed/ lossless / lossy compression 
  • choose bit depth 8 / 10 / 12 / 14 bit per color channel
  • choose dynamic range SDR HDR specific nits
  • choose transfer function like log or PQ not only for PNG but for HEIC etc
  • choose palettized or not, and wich color palette to be used

 

https://cloudinary.com/blog/jpeg-xls-modular-mode-explained

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

  • 1 month later...
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  • 2 weeks later...
Posted

Sadly, this issue (the inability to export to PNG with a custom, user-defined palette to enable clean solid fills and small file size) continues to be the reason why I seldom can use the Affinity software I licensed early last year. This product suite seemed to be an ideal non-subscription alternative to Adobe products, which I was fleeing due to Adobe’s subscription-only policy.

I still really do want to love Affinity products, but unfortunately this issue remains a dealbreaker for my ability to use them very much at all. It would be wonderful if it could be fixed soon, please. Thank you!

  • 2 months later...
Posted (edited)

This is still not fixed (Palettized > Custom) in Affinity Photo 2 version 2.6.0.

Edited by Eerko

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