[vtk-developers] Scissor in vtkOpenGLCamera

[Aashish Chaudhary]

You can achieve this by creating two renderers and then for the second one
just a smaller viewport (on top of the first one). I am assuming that you
are showing two images / data at the same time.

There is no API (as far as I know) to help you with this task.

On Thu, Oct 29, 2015 at 2:45 PM, Antonella Cascitelli <lenlen1982 at gmail.com>
wrote:

> Hi,
> is it possible set the glScissor in vtk?
> i.e. in vtkOpenGLCamera:
>
> glViewport(lowerLeft[0], lowerLeft[1], usize, vsize);
> glEnable(GL_SCISSOR_TEST);
> glScissor(lowerLeft[0], lowerLeft[1], usize, vsize);
>
> so seems that the scissor area is always the same of the viewport.
> I want to render only a small rectangle area in the viewport like using
> scissor with opengl.
>
> Thanks
>
> Antonella
>
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*| Aashish Chaudhary | Technical Leader         | Kitware Inc.            *
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