[vtkusers] vtkLightKit and OffScreenRendering

[Jeff Lee]

Paul Tait - OPES wrote:

> Hi
>  
> I can confirm that this happens but no one knows why!!!! I asked the 
> group about this over a year ago and the only suggestion was to turn 
> the vtkLightKit off before rendering off screen to force the use of 
> the standard lights. Let me know how you go
>  
> Paul Tait
>
>     -----Original Message-----
>     *From:* vtkusers-bounces+paul=opes.com.au at vtk.org
>     [mailto:vtkusers-bounces+paul=opes.com.au at vtk.org] *On Behalf Of
>     *Yianis Nikolaou
>     *Sent:* Tuesday, 17 January 2006 7:33 PM
>     *To:* vtkusers at vtk.org
>     *Subject:* [vtkusers] vtkLightKit and OffScreenRendering
>
>     hi,
>
>     I'm using the vtkLightKit class to adjust the lighting of my scene.
>
>     When I switch to OffScreenRendering and use then vtkBMPWriter to
>     get a screenshot,
>     the colors of the image are dimmed, as thought there was no
>     lighting present.
>
>      I also tried to use the
>     dynamic_cast<vtkWin32OpenGLRenderWindow
>     *>(renWin)->SetupMemoryRendering(size[0], size[1], GetDC(p_hwnd));
>     capability of the OPENGL32Window directly, with the same poor
>     results.
>
>     Any ideas?
>
I can confirm this behavior too.  Is this problem known to only happen 
when the user adds their own lights to the scene?
Jeff

>
>     VTK 5.1 (CVS updated on 10.01.06)
>     VS 2003
>     CMake 2.2 1-beta
>
>     thank you in advance,
>
>     yianis
>
>
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