J-S,
I have just read the thread you started on overriding
swapBuffersImplementation() and the last post I saw was written 38
weeks, 5 days, 8 hours and 55 minutes ago (Thanks gmane), at which time,
it appeared that you had not completely and satisfactorily completed the
task. At that time, you were, I bleieve, still seeing a black screen
even though MyGraphicsWindowWin32 ::swapBuffersImplementation() was
being called. Did you get this working to your sastisfaction? What
were the associated gotchas?
Ed
Jean-Sébastien Guay wrote:
Hi Ed,
Thanks for clarifying, your situation is interesting even though you
can't divulge too much (we always like to know the cool new ways OSG
is being used!)
For example, I need to add a callback to my viewer, or where-ever it
is appropriate, that will be called between the final render of the
entire scene graph but before the call to swap the buffers is made.
I can't seem to get that working quite right, actually, it isn't
working for me at all.
The way I did that was to subclass GraphicWindowWin32 and override the
virtual void swapBuffersImplementation();
method, doing whatever I needed to do before calling the parent
class's version. It works well enough for my needs, though you might
have other constraints. In your case of course you'll probably
subclass from GraphicsWindowX11, or even straight from
osgViewer::GraphicsWindow if you want to get really low-level. :-)
I'm sure there are other ways to do this though, and perhaps cleaner
ones too (which I'll be happy to learn about if someone points them
out in this thread).
Hope this helps,
J-S
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
