[vtkusers] Suse 10.1 wx + vtk flickering

[Toon Huysmans]

Hello Mathieu,

Thanks for your help!

> What exactly do you mean by :
>
>  > Ps.: the flickering doesn't occur when I use a vtkRenderWindow.

I mean that there is no flickering when simply instantiate a
vtkRenderWindow that is not embedded in a gui.

The flickering occurs with both:

	tohu at visielp8:> python wxVTKRenderWindowInteractor.py 
	tohu at visielp8:> python wxVTKRenderWindow.py

I have added the wxCLIP_CHILDREN and/or wxNO_FULLREPAINT_ON_RESIZE flags
to the parent frame of the wxVTKRenderWindowInteractor but it is still
the same.

I also tried to set wxGLCanvas as the superclass of wxVTKRenderWindow by
defining WX_USE_GLCANVAS = 1 just before I instantiate
wxVTKRenderWindowInteractor, again no result...

Toon.


-----Oorspronkelijk bericht-----
Van: Mathieu Malaterre [mailto:mathieu.malaterre at kitware.com] 
Verzonden: dinsdag 18 juli 2006 15:44
Aan: Toon Huysmans
CC: vtkusers at vtk.org
Onderwerp: Re: [vtkusers] Suse 10.1 wx + vtk flickering

Toon,

What exactly do you mean by :

 > Ps.: the flickering doesn't occur when I use a vtkRenderWindow.


Could you confirm that flickering occurs directly with both 
wxVTKRenderWindowInteractor.py and wxVTKRenderWindow.py (they contains a

main function).

In the past I remember having different issues with flickering, in no 
particular order you have to play with:
- wxCLIP_CHILDREN
- wxNO_FULLREPAINT_ON_RESIZE
and with GTK you have to make sure to use a wxGLCanvas instead of the 
regular wxWindow.

HTH
Mathieu

Ref:
http://wxvtk.sourceforge.net/


Toon Huysmans wrote:
> Hello users,
> 
> Sorry for this repost, but it is a fairly annoying problem. Am I the
> only one experiencing this problem? Any ideas or comments are very
much
> appreciated!
> 
> Greetings,
> 
> Toon.
> 
> -----Oorspronkelijk bericht-----
> Van: vtkusers-bounces+denhuys=hotmail.com at vtk.org
> [mailto:vtkusers-bounces+denhuys=hotmail.com at vtk.org] Namens Toon
> Huysmans
> Verzonden: vrijdag 14 juli 2006 16:06
> Aan: vtkusers at vtk.org
> Onderwerp: [vtkusers] Suse 10.1 wx + vtk flickering
> 
> Hello vtk users,
> 
> I have a small application, written in python, that uses vtk and
> wxWidgets to visualize vtkpolydata. The application runs fine under
> windows xp, using the python enthought edition 2.4.3. (vtk 5.0.0 and
wx
> 2.6.1.0). But when I run the same program under Suse linux 10.1, with
> the inculded python libs (vtk 5.1.0 and wx 2.6.2.1), I experience
> flickering when interacting with the renderwindow.
> 
> Here is a small app to reproduce the problem:
> 
> ---------------------------------------------------------
> #! /usr/bin/env python
> 
> import sys
> 
> from vtk import *
> from vtk.wx.wxVTKRenderWindowInteractor import *
> import wx
> 
> app = wx.PySimpleApp()
> frame = wx.Frame(None,wx.ID_ANY, "test")
> 
> # set up the renderwindow and renderer
> renderWidget = wxVTKRenderWindowInteractor(frame, -1)
> 
> # the renderer
> renderer = vtkRenderer()
> renderWidget.GetRenderWindow().AddRenderer(renderer)
> 
> # the surface
> obj = vtkConeSource()
> obj.SetResolution(50)
> 
> objMapper = vtkPolyDataMapper()
> objMapper.SetInput(obj.GetOutput())
> 
> objActor = vtkActor()
> objActor.SetMapper(objMapper)
> 
> renderer.AddActor(objActor)
> 
> app.MainLoop()
> ---------------------------------------------------------
> 
> What is going wrong?
> I have read several posts about this topic from a couple of years ago
> but didn't get any wiser.
> 
> Ps.: the flickering doesn't occur when I use a vtkRenderWindow.
> 
> Regards,
> 
> Toon Huysmans
> 
> 
> Postal Address:
>   Vision Lab, Department of Physics
>   University of Antwerp (CDE)
>   Universiteitsplein 1 (N1.19)
>   B-2610 Antwerp, Belgium
> Tel: +32 (0) 3 820 24 72	
> Fax: +32 (0) 3 820 22 45	
> Email: toon.huysmans at ua.ac.be	
> Web: http://webhost.ua.ac.be/visielab/staff/tohu/	
> 
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