• Ken Martin's avatar
    Track framebuffer state in OpenGLState class · 837e899d
    Ken Martin authored
    Keep track of framebuffer state in OpenGL
    This includes both vtk framebuffers as well as
    other use of framebuffers. Supports pushing and popping
    the draw and read framebuffers. Also some bug fixes
    and changes to account for the fact that buffer state
    is actually stored with framebuffer objects.
    837e899d