Richard Liu Posted August 10, 2019 Share Posted August 10, 2019 I have inverted a High Pass live filter layer and am trying to paint back in just the parts that I want. When I hover with the paint brush over the image Affinity Photo creates a trail of black splotches. Affinity Photo 1.7.1 on macOS 10.13.6 Here is a screen movie: https://drive.google.com/open?id=1viEQnHnmqgz52_vJxko7EZAiJZF_-d4m Quote Richard Liu MacBook Pro 16" 2021 M1 Max | macOS 12.3.1 | BenQ SW271 | Affinity Photo 1.10.5 Link to comment Share on other sites More sharing options...
Richard Liu Posted August 10, 2019 Author Share Posted August 10, 2019 This bug is still present in the latest beta, RC3. I will post this there as well. Quote Richard Liu MacBook Pro 16" 2021 M1 Max | macOS 12.3.1 | BenQ SW271 | Affinity Photo 1.10.5 Link to comment Share on other sites More sharing options...
Staff MEB Posted August 12, 2019 Staff Share Posted August 12, 2019 Hi Richard Liu, If you go to Affinity Preferences, Performance section and untick Metal compute acceleration does it still behaves the same way? Do you mind attaching a screenshot of your Mac specs please (menu Apple > About This Mac). Thank you. Quote A Guide to Learning Affinity Software | Affinity Quick Reference Link to comment Share on other sites More sharing options...
Richard Liu Posted August 12, 2019 Author Share Posted August 12, 2019 In fact, with Metal still active, I deleted the High Pass layer, recreated it, inverted it, and tried again, and was able to do what I couldn't before. I'm puzzled about the cause of the problem, and am not so naive as to assume it won't happen again. As I saved the working version of the .afphoto file over the misbehaving one, I would have to whether I can find it in Time Machine in order to try the same operation without Metal. Should I? It doesn't seem that many people have encountered this or related problems, does it? And someday ... real soon now ... I'll upgrade to 10.14, which, if I recall correctly, corrects some problems with Metal in 10.13. Here are the specs that you requested: Quote Richard Liu MacBook Pro 16" 2021 M1 Max | macOS 12.3.1 | BenQ SW271 | Affinity Photo 1.10.5 Link to comment Share on other sites More sharing options...
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