single vtkActor added to multiple vtkRenderers - URGENT

[Miller, James V (CRD)]

This is probably a vtk issue.  The mappers and textures cache information in the graphics context.
Each render window has its own graphics context so we are probably not rebuilding the information
correctly.

The safest thing to do is to use a separate mapper/actor/texture for each render window.  The
mappers/actors/textures don't store too much information themselves (the data is kept in the data
set), so there is not too much overhead involved.

Another alternative is to turn ImmediateModeRenderingOn on the mappers.

> -----Original Message-----
> From: Ben Held [mailto:ben.held at staarinc.com]
> Sent: Monday, November 08, 1999 11:36 AM
> To: vtkusers at gsao.med.ge.com
> Subject: single vtkActor added to multiple vtkRenderers - URGENT
> 
> 
> Hi,
> 
> I am having some problems with VTK when I add a single 
> vtkActor to multiple
> vtkRenderers (each vtkRenderer is in a different vtkRenderWindow - a
> different CView in my MFC application).  Some memory appears to be
> overwritten as I get bizarre results on the screen.  Many 
> times, the display
> is correct, however if I add and remove these vtkActors from 
> the renderers
> in a particular order, the problem occurs.  I cannot find any 
> problems with
> my code, and I am wondering if this is a limitation (bug?) in 
> VTK.  Perhaps
> I should not be adding a vtkActor to multiple vtkRenderers as 
> I am just
> asking for trouble?
> 
> Thanks,
> 
> Ben L. Held
> Simulation Technology & Applied Research, Inc.
> 11520 N. Port Washington Rd.
> Suite 101 B
> Mequon, WI  53092
> Phone: (262) 240-0293
> FAX: (262) 240-0294
> e-mail: ben.held at staarinc.com
> 
> 
> 
> 
> --------------------------------------------------------------
> ---------------
> This is the private VTK discussion list.  Please keep 
> messages on-topic.
> Check the FAQ at: <http://www.automatrix.com/cgi-bin/vtkfaq>
> To UNSUBSCRIBE, send message body containing "unsubscribe vtkusers" to
> <majordomo at gsao.med.ge.com>.  For help, send message body containing
> "info vtkusers" to the same address.     Live long and prosper.
> --------------------------------------------------------------
> ---------------
> 


-----------------------------------------------------------------------------
This is the private VTK discussion list.  Please keep messages on-topic.
Check the FAQ at: <http://www.automatrix.com/cgi-bin/vtkfaq>
To UNSUBSCRIBE, send message body containing "unsubscribe vtkusers" to
<majordomo at gsao.med.ge.com>.  For help, send message body containing
"info vtkusers" to the same address.     Live long and prosper.
-----------------------------------------------------------------------------