[vtkusers] Anti-aliasing text.

[Philip Schuchardt]

I'm trying to render over 1000 text actors at once and there is a huge 
preformace hit. By default vtk uses anti-aliasing text for vtkTextActor and 
vtkTextMapper.  I think the anti-aliasing is causing the large preformace hit 
with that many actors.   I have a simalar openGL application that has good 
performance without aliased fonts.  It appears that turning off the anti 
aliasing in the vtkTextProperty was removed in version 5.0.  Is there anyway 
any other way to turn off anti-aliasing for text ie. making the text aliased?

If there is no way to do this... I will probably end up calling openGL 
directly.

System:
Gentoo Linux
AMD64 X2 4400
Nvidia 7800GTX 256mb

Thanks
Philip Schuchardt