[vtkusers] avoid ray-casting

[Koning, P.J.H. de (LKEB)]

04/11/2002 15:15:33, Steffen Oeltze <Steffen.Oeltze at Student.Uni-Magdeburg.DE> wrote:

I don't think it is possible to have a volume visible and not have it render when another actor is modified. You could try using a vtkLODProp3D for your volume. This way 
you can have the volume at different resolutions, one of interaction and one full resolution.

>Hi,
>
>I'm using a vtkTubeFilter to draw polylines within a raycasted volume. The 
>drawing process takes a while because the volume is raycasted again each 
>time I modify my polyline-actor (Thanks for this information !). Is there a
>way to speed up this process or to prevent the volume from being raycasted
>again ?
>
>Steffen
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