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Description
Is your feature request related to a problem? Please describe.
OpenGL has been in deprecation since MacOS 10.9 and has been fully replaced by Metal 2 in 10.14. It can be removed at Apple's whims. Vulkan was essentially glNext so we should be moving ahead anyways.
Describe the solution you'd like
Options (in increasing order of likelihood):
- Stop supporting OpenGL related functionality on MacOS (current status)
- Use Metal instead. Official example of migration
- Shift to Vulkan: This is a chance to take a look at how PCL handles OpenGL and potentially refactor it enabling better support for other backends.
If we shift to Vulkan instead, we can use libraries such a MoltenVK (Vulkan over Metal) to maintain one single code for all platforms. A lot of engines have reported that refactoring using Vulkan gives them significant speed-ups on the same hardware.
Describe alternatives you've considered
In the mean time, we can shift to GLOVE (GL over Vulkan) + MoltenVK to keep using current implementation in Mac.