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List:       vtk-developers
Subject:    Re: [vtk-developers] vtkShadowRenderer
From:       Lisa Avila <lisa.avila () kitware ! com>
Date:       2003-03-31 21:41:39
Message-ID: 5.2.0.9.0.20030331163726.030b4ec8 () pop ! biz ! rr ! com
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Hi Brian,


>vtkOpenGLPolyDataMapper.cxx -- line 126
>ren->GetRenderWindow()->MakeCurrent();

This line is needed because the Update call made to update the input data 
may have caused another OpenGL context to become current. This line cannot 
be removed.


>vtkOpenGLProperty.cxx -- line 51
>glDisable(GL_TEXTURE_2D);

This actually should be replaced - instead of enabling and disabling things 
we should probably push the attribute bits and pop them - the only problem 
is that the path through the rendering code goes through the OpenGL 
property early on - so we could push there - but it is not quite as clear 
where we would do the pop.  This is the same reason why the disable is here 
- it may have been enabled in a previous prop but not disabled, so it is 
done in the next prop's property. Do you know why this particular disable 
is causing you problems?

Lisa




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