[vtkusers] WinXP vtk - OpenGL driver (problems)

[Alberto Bert]

Hi Nigel

I have got a 32MB card, but also switching to the 800x600 resolution I
cannot see differences. The 2D visualization is slower than when I was
using the older driver which cannot suppurt harware accelleration. 
The new driver works, I've tested it with several benchmarks, so
apparently I'm not able to use hardware accelleration with vtk. Is there
any option to set for this?

Alberto

On gen 30 at 03:23+1100, Nigel Nunn wrote:
> 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.