[Marble-commits] branches/KDE/4.5/kdeedu/marble/src/lib/blendings

[Torsten Rahn]

Reason is that log2 doesn't compile on Windows.


On Tuesday 17 August 2010 22:34:59 Jens-Michael Hoffmann wrote:
> Am Montag 16 August 2010, 18:52:38 schrieb Torsten Rahn:
> > SVN commit 1164388 by rahn:
> > 
> > - Backport of 1135592
> > 
> >  M  +1 -1      BlendingAlgorithms.cpp
> > 
> > ---
> > branches/KDE/4.5/kdeedu/marble/src/lib/blendings/BlendingAlgorithms.cpp
> > #1164387:1164388 @@ -131,7 +131,7 @@
> > 
> >  qreal DivideBlending::blendChannel( qreal const bottomColorIntensity,
> >  
> >                                      qreal const topColorIntensity )
> >                                      const
> >  
> >  {
> > 
> > -    return log2( 1.0 + bottomColorIntensity / ( 1.0 - topColorIntensity
> > ) / 8.0 ); +    return log( 1.0  + bottomColorIntensity / ( 1.0  -
> > topColorIntensity ) / 8.0) / log(2.0); }
> 
> Out of curiousity: is this faster or what is the reason for it?
> 
> 
> kind regards,
> Jens-Michael
> 
> >  qreal GammaDarkBlending::blendChannel( qreal const bottomColorIntensity,
> > 
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