[vtkusers] How set render-background as color-gradient

[Jens]

I only found this on the net - who recommends to use a vtkImageActor for
a color-gradient-background in VTK.
(http://public.kitware.com/pipermail/vtkusers/2005-February/078369.html)

But (1) using a vtkImageActor to create a color-gradient-background is
not very satisfying, because by changing the camera-position the user
could reach it and move through it.
And (2) a pixel-based image looks kind of rough in a rendered world.

Any others ideas for a color-gradient-background in a render-window?

Greetings
	Jens


Jens schrieb:
> Hi,
> 
> does anyone knows how to set the render-background to be a
> color-gradient. That way I could make sure that an actor is always
> recognised by the user - beside, it would look kind of nice :)
> 
> Greetings
> Jens
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