Change Details

The aim of this patch is to increase options for users of Krita, and to increase interchangeability with other application (A few software use Reflect Blending Mode). Formulas are found in Pegtop Delphi site - http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm Differentials - https://phabricator.kde.org/differential/diff/35689/ For the Pegtop part, all seem to work just fine. - https://forum.kde.org/viewtopic.php?f=288&p=399595#p399595 However, there does seem to be a issue with Paint.NET blend mode documentation test images - https://www.getpaint.net/doc/latest/BlendModes.html , and it's not something that can be solved by conditional ifzero, then zero or ifunit, then unit. - https://i.imgur.com/JT9AXCL.png Note that ugly black stain over that image. Yeah, that's the issue. There's also ZX Spectrum bug, but that's a bug that can be found with Color Dodge and Parallel Blending Mode - https://bugs.kde.org/show_bug.cgi?id=395036

The aim of this patch is to increase options for users of Krita, and to increase interchangeability with other application (A few software use Reflect Blending Mode). Formulas are found in Pegtop Delphi site - http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm Some of the painting application - 1) Glow can be used to aid into creation of transparent blanket or fabric into a Krita art scene. 2) Freeze can be used to increase saturation and burning color while subtly adding light 3) Reflect can be used to paint reflection into objects 4) Heat can also be used in similar way to Glow or painting into dark scenes. Differentials - https://phabricator.kde.org/differential/diff/35689/ For the Pegtop part, all seem to work just fine. - https://forum.kde.org/viewtopic.php?f=288&p=399595#p399595 However, there does seem to be a issue with Paint.NET blend mode documentation test images - https://www.getpaint.net/doc/latest/BlendModes.html , and it's not something that can be solved by conditional ifzero, then zero or ifunit, then unit. - https://i.imgur.com/JT9AXCL.png Note that ugly black stain over that image. Yeah, that's the issue. There's also ZX Spectrum bug, but that's a bug that can be found with Color Dodge and Parallel Blending Mode - https://bugs.kde.org/show_bug.cgi?id=395036

The aim of this patch is to increase options for users of Krita, and to increase interchangeability with other application (A few software use Reflect Blending Mode). Formulas are found in Pegtop Delphi site - http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm Some of the painting application - 1) Glow can be used to aid into creation of transparent blanket or fabric into a Krita art scene. 2) Freeze can be used to increase saturation and burning color while subtly adding light 3) Reflect can be used to paint reflection into objects 4) Heat can also be used in similar way to Glow or painting into dark scenes. Differentials - https://phabricator.kde.org/differential/diff/35689/ For the Pegtop part, all seem to work just fine. - https://forum.kde.org/viewtopic.php?f=288&p=399595#p399595 However, there does seem to be a issue with Paint.NET blend mode documentation test images - https://www.getpaint.net/doc/latest/BlendModes.html , and it's not something that can be solved by conditional ifzero, then zero or ifunit, then unit. - https://i.imgur.com/JT9AXCL.png Note that ugly black stain over that image. Yeah, that's the issue. There's also ZX Spectrum bug, but that's a bug that can be found with Color Dodge and Parallel Blending Mode - https://bugs.kde.org/show_bug.cgi?id=395036