When my viewer is resized to a much larger area, there are sometimes black areas on the bottom and/or right sides of the window. Whats going on?
This problem occurs on certain graphics boards. We have investigated its cause and found that it is clearly an OpenGL issue, and can be reproduced with an OpenGL program apart from Open Inventor. We have reported this problem to Microsoft. The problem appears to be in the GDI generic renderer of OpenGL, i.e., the software rendering done by Microsoft. The problem has not been reported as much recently, probably due to the fact that more low-end boards now offer hardware support for OpenGL. The only completely reliable workaround for this problem is to destroy the OpenGL drawing window and re-create it at the new size. A simple workaround that recreates the window is to switch from double buffering to single buffering and back again. You can do this with the right mouse menu (under the Draw Style item).
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