[vtkusers] Running multiple render windows for shared dataset

N Smethurst nick.smethurst at free.fr
Fri Jul 18 03:56:08 EDT 2003

Hi there

This may be of interest to you.. You mention using one actor for many 
windows. We had a discussion some time ago on the mailing list about 
multiple render windows displaying the same objects. The conclusion was 
that the pipeline should be split between the dataset and the mapper (i.e. 
use one dataset for all render windows but one mapper/actor for each 
render window).

Le Vendredi 18 Juillet 2003 00:34, Jenny Simpson a écrit :
> Obviously, running n
> separate processes won't work because then I'd have to load the dataset
> n times, which is too much data to have in memory.  I've thought loading
> the dataset first, then using threads for each separate rendering window
> so that the vtk data actor is only created once but can be rendered and
> manipulated by many separate threads.  Is this even possible in Vtk?
> Based on the documentation I've read, it seems that some parts of Vtk
> are thread-safe and others are not.

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