[Bug 163054] wrong rendering by using OpenGL   
    Lucas Murray 
    admin at undefinedfire.com
       
    Thu Jun 19 18:09:53 CEST 2008
    
    
  
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http://bugs.kde.org/show_bug.cgi?id=163054         
admin undefinedfire com changed:
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
      everconfirmed|0                           |1
            Product|plasma                      |kwin
------- Additional Comments From admin undefinedfire com  2008-06-19 18:09 -------
Problem is caused by different blending formulas. OpenGL uses:
Res = (1 - Opacity) * Bg + Opacity * Fg
XRender uses:
Res = (1 - Opacity) * Bg + Fg
As XRender produces the same results as what is shown in Inkscape I'll assume the OpenGL formula is incorrect.
    
    
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