[vtkusers] How to get color buffer from offscreen rendering?

[Bill Lorensen]

Try doing a Modified() on the window to image filter instance.


On Sat, Oct 10, 2015 at 11:28 AM, LaChen <sam24666806 at gmail.com> wrote:
> Hi, I try to use vtkWindowToImageFilter. It seems right.
>
> But I try to render scene(with a ray-casting volume object ) again, I can't
> get next frame image.
>
> Does I need to delete old vtkWindowToImageFilter and new one for getting
> data??
>
>
>
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