[vtk-developers] vtkGenericOpenGLRenderWindow thoughts

David Gobbi david.gobbi at gmail.com
Tue May 25 14:21:39 EDT 2010


I think that a vtkGenericOpenGLRenderWindow would be very useful.
Things like MakeCurrent() can be implemented via callbacks, in fact
vtkGenericOpenGLRenderWindow would need far fewer callbacks than e.g.
vtkGenericRenderWindowInteractor.

   David


On Tue, May 25, 2010 at 11:39 AM, Francois Bertel
<francois.bertel at kitware.com> wrote:
> Hi,
>
> Can you please elaborate about the OpenGL functionality in Qt you want to use?
>
> How would you do a vtkGenericOpenGLRenderWindow? How to pass context
> information? How would you implement MakeCurrent(), for example?
>
> On Tue, May 25, 2010 at 1:27 PM, Clinton Stimpson <clinton at elemtech.com> wrote:
>> Hi,
>>
>> Does anyone see any issues with having a class vtkGenericOpenGLRenderWindow in
>> VTK which would allow one to render a VTK scene into a drawable & context of
>> their own?
>>
>> The reason I'm looking at this is because there is a great deal of OpenGL
>> functionality in Qt that can easily be used with this approach.  The code in
>> interest is not in a public api and is accessible only through using Qt's
>> classes that manage drawables and contexts.
>>
>> I wonder if it'll be an issue as I'm seeing code in vtkCameraPass::Render that
>> checks if its drawing to a framebuffer object, when it couldn't know if it is
>> drawing to a framebuffer object created on the Qt side.
>>
>> Any thoughts?
>>
>> Thanks,
>> Clint
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>
>
>
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