[vtkusers] Re: Rendering slowed down after recent CVS update

[Paul Melis]

And another reply to myself...
After going back to a CVS version of VTK of October 1st the problem 
seems to be gone. So something changed in VTK between october and today 
that influences the render performance, probably due to a software 
fallback suddenly being used in the NVidia driver.

Well, at least I have a work-around for now but I'm interested in what 
is the issue here,

Paul