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List:       kde-bugs-dist
Subject:    [Bug 294493] New: about the behaviour of the opacity layers when flattening
From:       Philippe Nicloux <phil.nicloux () neuf ! fr>
Date:       2012-02-20 12:05:37
Message-ID: bug-294493-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=294493

           Summary: about the behaviour of the opacity layers when
                    flattening
           Product: krita
           Version: 2.4-snapshots
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: krita-bugs-null@kde.org
        ReportedBy: phil.nicloux@neuf.fr


Version:           2.4-snapshots (using KDE 4.8.0) 
OS:                Linux

When you flatten layers, if the opacity of the UPPER layer is SUPERIOR to the
opacity of the LOWER layer, the resulting layer has the LOWER layer opacity
value, and you can't sse what was the lower, and what was the upper drawing (
no good for sketching ).
If the UPPER layer opacity value is INFERIOR to the LOWER layer opacity value,
then it's ok, the resulting layer is a mix of the two layers, and you can
distinguish was were the previous two drawings.

Reproducible: Always

Steps to Reproduce:
1- add a layer, sketch on it. put it to 50% opacity
2- add a layer, sketch a more detailed sketch.
3- flatten. 

Actual Results:  
Krita has put the two layer together with the same opacity value ( the lower
layer one ), you can't distinguish anymore the detailed sketch from the first
sketch.

Expected Results:  
krita should have flatten the layers with their distinctive opacity values, so,
on the resulting layer, we should see the lower one more erased than the upper
one.
and the resulting layer should be automatically put at 100% opacity.

OS: Linux (x86_64) release 3.0.0-16-generic
Compiler: gcc

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