[vtkusers] Problem with volume rendering,

[Lisa S. Avila]

Hello Antonio,

Ray casting occurs in software. After the image is generated (a process
entirely independent of your graphics hardware as long as you don't have
geometry in the scene) the resulting image is displayed as a texture mapped
polygon. That means something must be going wrong in the way the resulting
image is texture mapped on a polygon. Can you run the texture mapping
example? Can you run other graphics examples that use texture mapping?

Lisa


----- Original Message -----
From: <cavallo at kip.uni-heidelberg.de>
To: <vtkusers at public.kitware.com>
Sent: Saturday, March 16, 2002 6:17 PM
Subject: [vtkusers] Problem with volume rendering,


> hy,
> i'm using vtk 4.0 from cvs on a linux box with different video boards but
> on almost of these board show just a black window when i'm testing the
> example under VolumeRendering/Tcl/SimpleRayCast.tcl.
>
> I tried in that sequence:
>
> nvdidia tnt2 vanta with nvidia gl drivers (black window),
> matroxmga400 (it works),
> matrox g550 (black)
> nvidia tnt2 vanta (black).
>
> all these machines are running xfree86 4.2.0 (suse7.3).
> I'm bit frustrated and i like to display volumes: any suggestion?
> thanks in advance,
> antonio cavallo
>
>
> ps i've set the VTK_DATA_ROOT to the right path.
>
>
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