[vtkusers] WinXP vtk - OpenGL driver (problems)

[Nigel Nunn]

Hi Alberto, 
 
To get good hardware acceleration, your graphics card needs 
enough memory to hold two 24-bit copies of the current scene. 
(enables double-buffering).  My old 8MB card worked well at 
800x600 (may even have managed 1024x768?).  Any higher and 
the poor thing fell back to software OpenGL.  You may need 
a 32MB card to render at 1280x1024.  Newer cards designed 
for 3D/OpenGL have at least 64MB. 
 
Nigel 
 
> I'm trying to work on WinXP using vtk-4.0 (graphic card: ATI 
> Rage 128).  I'm not so expert, so please be patient :-)
> 
> The native XP driver for the card I have got does not support 
> hardware accelleration for OpenGL. Therefore I installed the 
> driver specific for my card, BUT apparently 3D interaction is 
> the same (no improvements) AND in 2D visualization it is 
> extremely slower. 
 
 

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