Hi,
I have been learning the OSG for two months.As the need of my project,I
would like to combine the OSG and OpenGL in MFC.In my programme,using the
OpenGL draws the background(such as Terrain) in the main thread and the OSG
draws the surface features(such as buildings) in the sub thread.When I run
my programme,I found the result is normal in the first frame,however,from
the second frame,It can't clear the window and leaves the traces of the
previous frame.I know that It can be implemented by using the
preDrawCallback,but the method does not meet the requirement drawing
the background in the main thread.I have no idea how to do it.Do you have a
solution to realize this situation? Please help me.
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