[VtkEdge] gpu based rendering/computation

[Francois Bertel]

Hello,

You can try to use vtkKWEVolumeMapper.

It is a essentially a volume mapper chooser that will try to pick the
best VolumeMapper depending on run-time conditions.

For example, if its internal vtkKWEGPUVolumeRayCastMapper detects that
the graphics cards does not support the required OpenGL features or if
there is not enough VRAM to fit the dataset on the card,
vtkKWEVolumeMapper will try to give a downsampled dataset to the GPU
mapper or will switch to a software volume mapper.

Also, some volume mappers supports different type of data (unsigned
char, signed short, ...) or modes (independent/dependent components).
vtkKWEVolumeMapper will take care of that too. It will also be able to
switch between interactive and high-quality volume rendering.

Regards.

On Mon, Apr 27, 2009 at 5:59 PM, Cartik Sharma <csharma at simquest.com> wrote:
> Dear all,
>
> This is with regards rendering & computation of  CT  datasets in vtkEdge.
>
> A. Is there a guide to moving computation from the CPU to the GPU
>
> for CPU intensive algorithms? If there is one the writing, examples
>
>  would be helpful.
>
> B. If I have a low end graphics card, do I have to write two different apps,
>
> one with GPU support and the other without?
>
> So far I'm excited with some performance results I get from applying vtkEdge
>
> rendering principles.
>
> best regards,
>
> Cartik S. Sharma
>
> Sr. Developer
>
> SimQuest LLC
>
> (301).587.9440 extn 11
>
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>
>



-- 
François Bertel, PhD  | Kitware Inc. Suite 204
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