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Bottom right corner pixel gets inverted in TGA


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While making textures intended for a game engine I discovered a weird issue: when I export TGA files for some reason their bottom right corner pixel gets inverted. If I export the same image to PNG or JPG there are no issues at all. I'm attaching original .afphoto file as well as TGA and an upscaled PNG file converted from TGA for better view.

To reproduce this bug simply create a project and export it as TGA. You should notice exactly one pixel being inverted in the bottom right corner.

I'm using Affinity Photo 1.8.5.703

T_ConcreteWall06_4x.png

T_ConcreteWall06.afphoto T_ConcreteWall06.tga

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Yes, I have reproduced this by exporting a fill layer using various colours

Odd thing is, the H values from both points add up to either 240 or 600 depending on the original. If I use values of 120 or 300 this doesn't occur

Targas.png

Microsoft Windows 11 Home, Intel i7-1360P 2.20 GHz, 32 GB RAM, 1TB SSD, Intel Iris Xe
Affinity Photo - 24/05/20, Affinity Publisher - 06/12/20, KTM Superduke - 27/09/10

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  • 3 years later...
  • 3 months later...
  • Staff

The issue "TGA Export and Import is inverting a single pixel value." (REF: AF-478) has been fixed by the developers in internal build "2.4.0.2222".
This fix should soon be available as a customer beta and is planned for inclusion in the next customer release.
Customer beta builds are announced here and you can participate by following these instructions.
If you still experience this problem once you are using that build version (or later) please reply to this thread including @Serif Info Bot to notify us.

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