[vtkusers] get visible surface

[David E DeMarle]

Use this test as a start:
http://vtk.org/gitweb?p=VTK.git;a=blob;f=Rendering/OpenGL/Testing/Cxx/TestAreaSelections.cxx

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Tue, Aug 21, 2012 at 2:13 PM, David Doria <daviddoria at gmail.com> wrote:
> On Tue, Aug 21, 2012 at 1:47 PM, David E DeMarle <dave.demarle at kitware.com>
> wrote:
>>
>> Use vtkHardwareSelector, it is a more recent implementation of visible
>> surface selection. It will give you cells if you ask it to for
>> instance. See:
>> http://www.vtk.org/doc/nightly/html/classvtkHardwareSelector.html
>>
>> I think the only thing that can be done about not needing a monitor is
>> to use an offscreen rendering context (osmesa for example). Screen
>> space operations like visible surface selection get too much from the
>> infrastructure that VTK's display pipeline (and openGL underneath)
>> provide to make removing them practical.
>
>
> If you figure out how to get it to work and could fix this example:
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Broken/Filtering/ExtractVisibleCells
>
> that would be great!
>
> David
>
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