Originally Posted by cgbeige
Apple's OpenGL drivers are fine. No one is using OpenGL 4.1 in any apps (even Mari only usies GL 3.0, and 3.2 has been supported in OS X 10.7 and up). There is a 4.1 update coming for Mountain Lion from what I hear from my well-placed contact in *mumble* *mumble*. The hardware tessellation preview can be done with OpenGL 3.0 from what I've read and from what Mari is doing.
GL3.0 represents the equivalent of DX10 so hardware tessellation isn't really supported in anything prior to GL4.0/DX11. Mountain Lion is still using GLSL 1.2... 1.2! Currently the latest GLSL is 4.3 and even though ML has a pretty good coverage of GL 3.2 they're still leaning on GLSL 1.2 from GL3.0. I understand the whole consistent user experience across all supported hardware but it would be nice to at least include the support for machines that can take advantage of it (or developers).