[vtk-developers] Performance slow down

Mathieu Coursolle mcoursolle at rogue-research.com
Thu Jul 24 12:22:29 EDT 2008


Hi,

I've track down the source of the problem to this change:

http://public.kitware.com/cgi-bin/viewcvs.cgi/Rendering/vtkOpenGLDisplayListPainter.cxx?r1=1.7&r2=1.8

For some reason, if I undo this single change, it is rendering as fast  
as before.

Anybody knows what the problem might be?

Thanks!

Mathieu



On 24-Jul-08, at 11:07 AM, Mathieu Coursolle wrote:

> Hi vtk-dev,
>
> I am developing a Cocoa application on Mac OSX 10.5 based on VTK.
> I usually update from CVS once in a while to have the recent fixes
> and features.
>
> I updated yesterday and rendering a vtkPolyData is now very slow.
> It use to be quite fast with my 2 weeks old version.
>
> I used the Shark tool to check in which part of the code it was  
> spending all
> this time, and it resulted in the OpenGL API.
>
> Any idea of which last days commit might have cause this?
>
> Thanks!
>
> Mathieu
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