[vtkusers] Rendering speed when using text labels

[David Goldsmith]

Hello!  We're using vtk for 3-D traingular mesh visualization.  To 
number label the points in the visualization, we're using 
vtkLabeledDataMapper.  We're finding, however, that labeling even on the 
order of only 1000 points significantly slows down all rendering.  Any 
suggestions for how to speed things up would be greatly appreciated.  
Thanks!

DG

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