SideFX said they will have to do the same to get GL 3 and up features working on OS X that are already supported on Windows and Linux versions of Houdini. In order to use OpenGL 4.1 Mavericks, software developers have to specifically call this forward context GL and they can’t do it at the same time as using legacy OpenGL calls in OS X � that’s why Mari had to get its code updated to remove legacy GL functions to work on OS X’s forward context OpenGL 4. Most people misunderstand how OpenGL works in OS X � there is actually two tiers that are used: the older legacy one that is limited to OpenGL 2.1 and the newer “Forward Context” OpenGL that was implemented in Lion and OpenGL 3.2 on OS X. Nothing changes in Maya in Mavericks vs Mountain Lion - I’m running it now and have been for a while. Software doesn’t magically use OpenGL 4 when a driver is updated to include support for it.
