hi doug, lots of good ideas in the thread so far. my gut feeling is similar to yours, that it is a threading thing, but it's hard to diagnose from a distance. :)
one thing you could do is expressly set each channel's clear color differently, to try to see if state is leaking from one context to another. so, set one to red, another blue, another green, and see if when you see the flash, that maybe the color might inidicate which (or if) another context's state is leaking. if so, it implies some sort of thread confusion, that for a moment, one set of state is being applied in the wrong context. other than that, you could try logging clears from the clearnodes, or running through a debugger to see what happens in each thread wrt what gl calls are issued, and when. you should be able to see a context made current, and a set of initial state happen (including clear color, if you've got a clearnode), and then the actual clear. the mac opengl debugger makes this sort of process relatively easy. anyway, just a few thoughts for a hot friday afternoon. good luck! bob bob kuehne founder and ceo - blue newt software, llc [EMAIL PROTECTED] - 734/834-2696 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
