SUMMARY Regression introduced in 4.2: When the color dodge brush mask is large and the mask's opacity and flow options are turned off, strokes will have 100% black texture edges. STEPS TO REPRODUCE 1. Select Basic 2 Opacity Brush. 2. Enable Masked Brush Tip. 3. Change Mask blending mode to Color Dodge. 4. Set Mask diameter to 200. 5. Turn off Mask's opacity and flow options. 6. Draw with a non-black color and observe. OBSERVED RESULT Black textures around the stroke. EXPECTED RESULT No black textures around the stroke. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Debian sid KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.12.9 (Appimage) ADDITIONAL INFORMATION May or may not be the same issue in https://krita-artists.org/t/help-creating-pencil-brush/20064/6
Git commit c40b4ca469da442d110e72cce307179039a276d0 by Deif Lou. Committed on 03/05/2021 at 13:03. Pushed by deiflou into branch 'master'. Fix color dodge and color burn blend modes Fixes incorrect handling of the 0/0 case and some artifacts in floating point modes. M +60 -22 libs/pigment/compositeops/KoCompositeOpFunctions.h https://invent.kde.org/graphics/krita/commit/c40b4ca469da442d110e72cce307179039a276d0