Hi Stephan, When I get a chance I'll do some logging of texture objects under Linux to see what happens. I would expect the same the same behavior w.r.t OpenGL across all platforms, as the OSG just throws its data at OpenGL in the same way regardless of platform.
Robert. On 2/15/07, Stephan Maximilian Huber <[EMAIL PROTECTED]> wrote:
Hi Robert, Robert Osfield schrieb: > HI Stephan, > > On 2/15/07, Stephan Maximilian Huber <[EMAIL PROTECTED]> wrote: >> > It sounds like the RTT window is not being created correctly, or >> > pehaps the make current isn't working as it should. >> I did some debugging, if I insert a glFlush before >> copyTexture(renderInfo) in RenderStage at line 737 the cow gets >> displayed on the additional window. But still no cow on the flag :( > > The need for a flush sounds like we have a threading issue on the > OpenGL side, i.e. the RTT window doesn't complete before the main > window draw traversals resumes. There do seem to be other problems > so we'll need to do more exploring before jumping to conclusions. > When sharing is in action I would have though we would just have two > textures, one for the RTT, one of the cow. I did run the osgproducerviewer (which shares the fullscreen-context with the window-context) and there you have only one texture (when displaying the cow-model). So something goes wrong when trying to share two windowed contexts > Could you try the above when running with SingleThreaded? I wonder if > the double buffering is has some detrimental effect. I did run my tests all single-threaded, running multithreaded I got two rtt-windows which confused me :) (when running multithreaded, the opengl profiler reports 6 textures). So it looks like that the sharing of the contexts do not work correctly, perhaps because both of them are bind to a window. I'll try to find out more on this topic in the documentation / at developer.apple.com thanks, Stephan _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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