[vtkusers] Slow rendering in VTK 4.4

[Clinton Stimpson]

And it feels like the drawing of labels has slowed down from 4.2 to CVS.  I
haven't measured it though.

Clint

> ------------------------------
>
> Message: 7
> Date: Tue, 17 Aug 2004 10:30:56 +0200
> From: Geir Arne Tangen <Geir.A.Tangen at sintef.no>
> Subject: [vtkusers] Slow rendering in VTK 4.4
> To: vtkusers at vtk.org
> Message-ID: <4121C240.3050201 at sintef.no>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi all !
>
> When switching from VTK 4.2 official release to VTK 4.4 interim release
> we
> are experiencing real slow rendering in our VTK based application.
>
> I have run Sebastien Barre´s "sphere-bench" application and the results
> show a huge difference in performance between the two VTK versions (see
> below).
>
> My system is Mac OSX ver. 10.3.5 "Panther".
>
> Have anyone else seen this loss of performance in VTK 4.4 ?
>
> Regards
> Geir Arne Tangen
>
> Sphere-bench results VTK 4.2 :
> ----------------------------------------
> Best results, summary :
>   - Power Macintosh running Darwin 7.5.0
>   - VTK 4.2.6 (rev: 1.1495, 2003/02/18 03:45:04)
>   - CarbonOpenGL
>   - Visual is 1280x1024, truecolor/truecolor/24
>   - Tcl/Tk 8.4.2
>   - window was 700 x 700
>    1) 256x256 : 26083.7 kpolys/s : [stripper]
>    2) 256x256 : 17038.3 kpolys/s : [small_sphere]
>    3) 256x256 : 17036.5 kpolys/s : [transparency]
>    4) 256x256 : 17033.8 kpolys/s : []
>    5) 256x256 : 14840.9 kpolys/s : [texture, transparency]
>    6) 256x256 : 14831.3 kpolys/s : [texture]
>    7) 256x256 :  695.5 kpolys/s : [wireframe]
>
> ------- DONE (in 14 sec.) -------
>
> Sphere-bench results VTK 4.4 :
> -----------------------------------------
> Best results, summary :
>   - Power Macintosh running Darwin 7.5.0
>   - VTK 4.4.2 (rev: 1.1782, 2003/12/17 02:45:35)
>   - CarbonOpenGL
>   - Visual is 1280x1024, truecolor/truecolor/24
>   - Tcl/Tk 8.4.2
>   - window was 700 x 700
>    1) 256x256 : 27365.3 kpolys/s : [stripper]
>    2) 256x256 :  721.8 kpolys/s : [texture, transparency]
>    3) 256x256 :  721.1 kpolys/s : [texture]
>    4) 256x256 :  696.4 kpolys/s : []
>    5) 256x256 :  696.4 kpolys/s : [wireframe]
>    6) 256x256 :  696.3 kpolys/s : [transparency]
>    7) 256x256 :  696.0 kpolys/s : [small_sphere]
>
> ------- DONE (in 50 sec.) -------
>
>
>
>
> ------------------------------