I'm trying both SharpGL version(2.4, 2.3) of this sample on 2 different AMD GPU(Radeon HD 8650G, Open GL ver. 4.2; Radeon HD 4500 OpenGL ver. 3.3). They both are showing same incorrect result (see attached image or at http://advameric.com/downloads/screenshot.png). It even seems the final image does not depend on a geometry and is same for different vertices set. The ObjectLoadingSample does not work in retained mode on these GPUs either. It shows a blank window. In both cases OpenGL Version property of SharpGL.OpenGLControl is set to value corresponding to GPU OpengGL version.
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