• loring's avatar
    fix a bug in visit's osmesa extension manager · ed4d2eb3
    loring authored
    vtk's opengl extension manager (base class for osmesa
    extension manager) had changed in vtk 6.1. we were
    overriding all the base class methods using a copy of
    an out of date version of vtk class code. as a result
    base class was not getting initialized and vtk could
    not load any extensions.
    
    I got rid of the overrides that didn't change vtk behavior
    and instead use the base class implementation in those
    cases.
    
    I also let visit enable the belnd_function_separate
    extension. This is used in transparent rendering in
    vtk and is required for depth peeling and to get
    correct alpha values during readback.
    
    
    git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@27360 18c085ea-50e0-402c-830e-de6fd14e8384
    ed4d2eb3
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