[vtkusers] Performance VTK 4.4 vs. VTK 5.4.2

[AGPX]

Low-end hardware? My system configuration is:

- Windows XP SP3 (32 bit);
- Latest nVidia Driver (190.62);
- Visual Studio 2008 SP1;
- VTK 5..4.2 (compiled by me in release shared lib);
- Latest VTKEdge (compiled by me in release shared lib);
- CPU: QuadCore Intel Core 2 Extreme QX9770 (3,4 Ghz) - FSB 1600 Mhz;
- GPU: 2 x nVidia Geforce GTX 280 (2 x 1GB) (connected in SLI);
- RAM: 4 GB DDR3 (1333 Mhz);
- MB: Asus Striker II Extreme (nVidia nForce 790i Ultra SLI); 





________________________________
Da: André Prins <a.h.prins at gmail.com>
A: vtkusers at vtk.org
Inviato: Martedì 22 settembre 2009, 10:11:48
Oggetto: Re: [vtkusers] Performance VTK 4.4 vs. VTK 5.4.2

Although I can not really confirm a performance drop between vtk 5 and
vtk 4, I do agree that rendering a simple 3D model can be slow. In my
experience, visualization is almost too slow for interactive rendering
on older hardware (GeForce 3 Ti 200) or on on-board Intel videochips
(Intel 945). Are you working on low-end hardware?

Regards,
André

On Mon, Sep 21, 2009 at 9:38 PM, AGPX <agpxnet at yahoo.it> wrote:
> Hello,
>
> I have noticed this slow-down (more than 10 times) in my application.
> However, actually, my software use VTKEdge to perform volume rendering. But
> now that I read your message, I'm not sure if this issue is strictly related
> to VTKEdge or if it's a problem of VTK. I can discover this downgrading only
> the VTK library to the previous version I have used (the 5.3.0) in order to
> figure out if my problem is VTK or VTKEdge related. Thanks for the info.
>
> ________________________________
> Da: Affolter Martin <martin.affolter at ntb.ch>
> A: "vtkusers at vtk.org" <vtkusers at vtk.org>
> Inviato: Lunedì 21 settembre 2009, 18:32:28
> Oggetto: [vtkusers] Performance VTK 4.4 vs. VTK 5.4.2
>
> Dear VTKUsers
>
> I've been looking into the vtkusers archive for a while now, and it helped
> me solve my vtk-problems in most cases. We use VTK in a CAD Application and
> decided to move from version 4.4 to the latest release, which is 5.4.2 at
> this time. So I downloaded the sources, made a VS2008 solution with Cmake
> and built the libs and dlls. Besides replacing some deprecated methods I did
> not have to change anything in our code. No compiler-warnings, no errors (of
> course).
>
> When I tested version 5.4.2 against 4.4 I found out, that 5.4.2 takes about
> 3-4 times longer to visualize a 3d-model of some robot-arm than version 4.4
> did. The rendering while interacting is also very, very slow. Can anybody
> confirm such a performance drop? If so, then I think we might stick to v4.4
> a little longer, if not, then I'll have to figure out what went wrong in my
> tests.
>
> Thanks
> Martin
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