sigmund Posted October 10, 2020 Share Posted October 10, 2020 Hey Serif, stumbled upon this bug that is reproducible on different systems. Specs: Win10 - Affinity Photo 1.8.5.703 If you have a CMYK/8 document and paint a mask for a layer with total black, the painted result is not totally transparent. It seems like an bug in the color conversion between GREY and CMYK. Switching the color mode from a color with 0% grey to CMYK shows that the KEY Color/Black is at 88k and not at 100k: In CMYK mode you can switch the color to 100K and then the transparenccy works as expected. But as soon as you click another layer and get back to the mask the color scheme is switched back to grey and black is not entirely transparent. To reproduce this: - Create an new image - switch to cmyk/8 - create a layer + draw something - create a mask for the layer, (Click the mask and) paint a total black with gray value 0. You can still faintly see the content you wanted to mask out. thomaso and Chris B 2 Quote Link to comment Share on other sites More sharing options...
lepr Posted October 10, 2020 Share Posted October 10, 2020 5 hours ago, sigmund said: If you have a CMYK/8 document and paint a mask for a layer with total black, the painted result is not totally transparent. It seems like an bug in the color conversion between GREY and CMYK. Switching the color mode from a color with 0% grey to CMYK shows that the KEY Color/Black is at 88k and not at 100k: Yes, there's a bug. There should be no colour conversion when painting with greyscale values in a mask or alpha channel. Chris B 1 Quote Link to comment Share on other sites More sharing options...
10C Posted October 11, 2020 Share Posted October 11, 2020 You beat me to this; I was going to post this issue a day ago but ran out of time and didn't get to it - thanks for posting this. I can confirm this is an issue on my system as well; same OS and Affinity version. Win10 & AF 1.8.5.703 Chris B 1 Quote Link to comment Share on other sites More sharing options...
sigmund Posted October 11, 2020 Author Share Posted October 11, 2020 Thanx 10C and anon2 for confirming that this is a bug. I hope Serif is putting it on the todo-list to fix this. Quote Link to comment Share on other sites More sharing options...
Staff Chris B Posted October 16, 2020 Staff Share Posted October 16, 2020 Hi all, This will now get logged. Thanks so much! lepr 1 Quote How to format a bug report | Learning Resources | List of V2 FAQs | YouTube Tutorials Link to comment Share on other sites More sharing options...
Tanya P Posted October 25, 2021 Share Posted October 25, 2021 Hi all, it looks like since the last post here over a year ago nothing changed. In the 1.10 version the bug is still there. Chris B 1 Quote Link to comment Share on other sites More sharing options...
Staff Chris B Posted October 25, 2021 Staff Share Posted October 25, 2021 I've bumped the bug report - sorry this hasn't been fixed yet @Tanya P - welcome to the forums. Tanya P 1 Quote How to format a bug report | Learning Resources | List of V2 FAQs | YouTube Tutorials Link to comment Share on other sites More sharing options...
zpires Posted October 27, 2021 Share Posted October 27, 2021 I came here to report the same issue. Very frustrating. Quote Link to comment Share on other sites More sharing options...
ashf Posted November 2, 2022 Share Posted November 2, 2022 - Quote Link to comment Share on other sites More sharing options...
DylanGG Posted December 2, 2022 Share Posted December 2, 2022 Still an issue in V2. It even happens in Publisher - which is odd because Publisher is mostly used for CMYK working. Not sure how this was overlooked. Quote Link to comment Share on other sites More sharing options...
Staff MEB Posted December 2, 2022 Staff Share Posted December 2, 2022 Hi @DylanGG, Welcome to Affinity Forums I've updated and bumped the report again to bring it up to devs attention. Thanks for your feedback and sorry for the inconvenience this is causing you. DylanGG 1 Quote A Guide to Learning Affinity Software Link to comment Share on other sites More sharing options...
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