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NVIDIA has added a cool feature in GTX 600 called bindless textures. This under-control situation looks like D3D one, we lose the ability of OpenGL extensions to expose new features. This is nice because you can know in advance if your soft will work fine on a particular OSX version, but at the same time, latest features of the GPU can’t be exploited (OpenGL 4 for example). This is one of the first surprises: OpenGL features are strictly defined on OSX while this is not the case in Windows or Linux worlds.

And how many extensions are exposed for the HD 4000 with an OpenGL 2.1 context under OSX 10.8? Check the table the right table and I bet you’ll find 123. So if you plan to add OpenGL 3.2 support for your software under OSX 10.6 (Snow Leopard), check the tables before: it’s not possible, OpenGL 3.2 being only available on OSX 10.7 (Lion) and OSX 10.8 (Mountain Lion). It’s useless to list them here, just check the capabilities tables. With an OpenGL 3.2 core context, 15 extensions are exposed for the software renderer (a highly optimized floating point CPU-based renderer), 16 extensions for the GT 650M and 13 for the HD 4000. Once my 3d lib started to run on OSX, I checked the OpenGL extensions available on my rMBP and they were exactly the same than those listed on Apple OpenGL capabilities tables for OSX 10.8, 10.7 and 10.6: The compatibility profile for OpenGL 3.2 is not available on OSX. OSX 10.8 supports OpenGL 2.1 and OpenGL 3.2 core profile. The graphics hardware of the MacBook Pro Retina includes the integraded Intel Graphics HD 4000 GPU (part of the Ivy Bridge Core i7 processor) and a discrete NVIDIA GeForce GT 650M with 1GB of dedicated memory. The MacBook Pro Retina 15-inch offers three kinds of OpenGL renderers: two hardware renderers and one software renderer (first time I play with an OpenGL software renderer). I did it for Linux (see Linux: Mesa, Gallium3D, Nouveau…) and now I do it for OSX. One of the first things I do when I arrive on a new OS is to look at the OpenGL support and extensions. I code with this laptop for some weeks now and I thought it was time to write a bit about the first contact with OpenGL under OSX from the point of view of a Windows developer… I could enter in Mac’s world thanks to a MacBook Pro (with a 15-inch Retina display). This lib is cross-platform and supports Windows, Linux and now OS X. These last months I worked (and I still work) on my new 3d lib that will be used in all my new tools.

For iphone download Intel Graphics Driver 31.0.101.4972 free