Hello Roger,

I remember running into a similar problem that I attributed to an nVidia
driver bug. You might want to try upgrading your driver. I worked around
the problem by calling dirtyTextureObject() on each texture in the model
whenever I created a new window, forcing the driver to reload the
texture data from system memory. I think the driver got confused with
shared contexts and this function was an effective reminder of what the
texture data was supposed to be.

Regards,



Mark

 

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Printy,
Roger-P57305
Sent: Tuesday, July 14, 2009 8:36 AM
To: [email protected]
Subject: [osg-users] osgViewer::CompositeViewer Texture Issue

 

I am upgrading to OSG 2.8.1 from OSG 2.4 and am having a problem with
use of the osgViewer::CompositeViewer.  My application adds/destroys
views dynamically and I am having an issue when I have two views loaded
with the same terrain/textures (for example a terrain) when I close one
view the textures in the 2nd view all get removed from the scene.  The
only way I am able to get the textures in the remaining view to reload
is to close the view, leaving none open, and opening a new view.  This
process destroys and recreates the composite viewer.

I have tried calling setUnrefImagedataAfterApplyPolicy(true, false) on
each view as they are created but this has not helped resolve the issue.

Can anyone provide any advice to help with this? 

Thanks, 
Roger 

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