[vtk-developers] Geocoordinate System Filter, 2D Text Manager, 2D Text Preformance, and Buffered Hardware Picking

Sean McBride sean at rogue-research.com
Wed Dec 19 10:13:40 EST 2007

On 12/18/07 4:18 PM, Philip Schuchardt said:

>-- 2D Text Manager --
>I've written a class that managers 3D anchored, 2D text actors.  It keeps 
>multiple text actors from overlapping each other.  It also support Z-buffer 
>checking, which keeps "hidden" 2D text actors from showing.  

By any chance, does your text code support Unicode or just ASCII?

>I've also had performance issues while displaying 100's of 2D text
actors, at 
>once.  I think it's a openGL pipeline issue.  Does vtk/ftgl use display
>for 2D text actors?  If it doesn't, I think display lists would greatly 
>improved 2D text actors rendering performance.  

I don't know if it's related, but we also found performance problems
with text, detailed here:

Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada

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