[vtkusers] refresh the render after an outside event

[Helder Carvalho]

Hi,
I´ve created an animation, using VTK showing the  different steps one of my
model has to take until it gets finished. The animation runs well
however if i press a mouse button or minimize the window the render
goes White, and never renders again.
Does anyone know a way to overcome this and refresh the window so that the
animation keeps showing as it should?

Thanks,
Helder Carvalho

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