Restructed the setting of the RenderStage ClearColor/ClearMask to make the code more readable and to avoid double setting of the ClearMask.
Restructed the setting of the RenderStage ClearColor/ClearMask to make the code more readable and to avoid double setting of the ClearMask.


git-svn-id: aa838dfc23441284dd616281de4245daec5d2135@15171 16af8721-9629-0410-8352-f15c8da7e697

marchelbling/osg,tomasthoresen/osg,marchelbling/osg,scrawl/osg,artoolkit/osg,scrawl/osg,tomasthoresen/osg,tomasthoresen/osg,artoolkit/osg,jtorresfabra/osg,openscenegraph/osg,scrawl/osg,openscenegraph/osg,openscenegraph/osg,openscenegraph/osg,jtorresfabra/osg,jtorresfabra/osg,jtorresfabra/osg,scrawl/osg,marchelbling/osg,marchelbling/osg,tomasthoresen/osg,artoolkit/osg,artoolkit/osg