OpenGL is not the same everywhere even on the same GPU. Every driver can negotiate its capabilities with the client app. Apple has a software renderer that ta

OpenGL is not the same everywhere even on the same GPU. Every driver can negotiate its capabilities with the client app. Apple has a software renderer that takes hold if client ask for an extension the gpu doesn't have, you have to ask a render surface in a specific way to get an error back when you ask ans unsupported feature. At least that was the case when I last worked on a OSX app. edit: found some reference from the curious https://developer.apple.com/library/mac/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_pixelformats/opengl_pixelformats.html https://developer.apple.com/library/mac/documentation/Graphi... "Since the OpenGL framework normally provides a software renderer as a fallback in addition to whatever hardware renderer it chooses, you need to prevent OpenGL from choosing the software renderer as an option." also note that 1 this might not be the banished problem and 2 this may be an outdated document