[vtkusers] Moving Renderer to another Window

[Elvis Stansvik]

I think a colleague did something like this for an "export image" feature
at work where we wanted to control the resolution of the exported inage.

I can have a look at how he worked around gotchas/crashes, but not until
Monday (on my way home).

I think the window and renderer have mutual references to each other and
need to be broken apart in the right order... Something like that..

Elvis

Den fre 23 nov. 2018 17:00Matthew Troke <
matthew.troke at avalonholographics.com> skrev:

> Once a vtkRenderer is attached to a vtkRenderWindow, can it be removed and
> added to a another vtkRenderWindow temporarily to perform an operation in
> isolation?
>
> Here is what I tried:
> - removed renderer from its current window with RemoveRenderer()
> - created a new vtkRenderWindow with vtkNew and added renderer with
> AddRenderer()
> - I called a method on the renderer (which is my own derived class of
> vtkOpenGLRenderer); inside this method, I create a new vtkTextureObject
> using the context from the renderwindow and Create2DFromRaw(). This method
> fails with an exception in vtkTextureObject::Bind() (Handle is null)
>
> If I don't remove and add the renderer to another window, I don't get the
> exception.
>
> --
> Matthew Troke
> Software Engineer
> Office: 1-709-701-0239
> Email: matthew.troke at avalonholographics.com
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