Version: svn trunk (using KDE 4.1.2) OS: Linux Installed from: Ubuntu Packages Krita seems to not blend correctly layers with alpha bits when they're inside a layer group (or when the "background" has alpha bits), this is very notorious in krita2.0 but it is present in 1.6 as well in a lesser degree, so in krita2.0 there's probably a combination of different issues. I created this example kra file in k1.6 for ilustrate it, and a jpg comparing the same file opened by k1.6 and k2.0, and a mock up I made with ps for show (as I understand) what I expect to see.
Created attachment 31560 [details] layer blending example
Created attachment 31561 [details] comparison between krita 1.6 and krita 2.0
SVN commit 930361 by berger: fix: recomposition of a group of layer with transparent bits This is a partial fix for 185299, Krita wasn't forgetting previous composition. CCBUG:185299 M +1 -0 kis_group_layer.cc WebSVN link: http://websvn.kde.org/?view=rev&revision=930361
After discussion it seems that the problem here is that Photoshop does not composite the layers inside a group separately on a transparent background, but on top of the composition result as it is when it encounters the group. I will attach the discussion log. This bug is reclassified as "wish" for a pass-through recomposition mode.
Created attachment 32352 [details] irc discussion about the layer groups recomposition issue
See also: 13:10:25 < m4v> boud: about Bug 185299, I already created a wish for a pass-throgh mode in http://bugs.kde.org/show_bug.cgi?id=185448 13:10:27 < bugbot> KDE bug 185448 in krita (general) "pass-through blending mode for layer groups" [Wishlist,Unconfirmed] 13:10:29 < bugbot> KDE bug 185299 in krita (general) "Implement pass-through mode for layer groups like Photoshop: was unwanted effect when blending layers that contains alpha bits" [Wishlist,New] http://bugs.kde.org/show_bug.cgi?id=185299 13:12:45 < boud> m4v: ah, ok 13:12:50 < m4v> boud: and besides adding pass-through mode, you also need some way for mask transparent pixels for complete 185299 13:12:51 < boud> m4v: I had forgotten about that 13:13:06 < m4v> I filled that wish too Bug 185445 13:13:09 < bugbot> KDE bug 185445 in krita (general) "select opaque pixels feature" [Wishlist,Unconfirmed] http://bugs.kde.org/show_bug.cgi?id=185445 13:13:11 < boud> I just remembered & retrieved the irc discussion to preserve it for posterity
See also: 185448 *** This bug has been marked as a duplicate of bug 185448 ***