macOS: Look into MoltenVK/GL support for Vulkan translation

[tutacat]

Is your feature request related to a problem? Please describe.

macOS does not support open graphics libraries OpenGL or Vulkan, however there is a project, which Apple is likely using to some degree, that translates Vulkan program calls to Metal graphics drivers.

Describe the solution you'd like
Investigate supporting MoltenVK/GL as a Vulkan/OpenGL backend for Minecraft

Describe alternatives you've considered
No other options seem appropriate time-wise, apart from Asahi GPU drivers if they get ported to macOS

Additional context

• Minecraft versions are phasing out older OpenGL.
• Apple does not support the graphics libraries Android does.
• Apple does not provide GL drivers with feature level GLES 3.1.

[ChristopherHX]

Investigate supporting MoltenVK/GL as a Vulkan/OpenGL backend for Minecraft

I honestly did investigate those with result failure after hours of trial and error.

My end of live message was short, but has reasons.

This is 100% orthogonal to this launcher, e.g. swiftshader does work

• MoltenGL no GLES 3.0 and failure on GLES 2.0
• MoltenVK failure zink (recently tried again) and angle
  • compatibility subset of vulkan

Apple does not provide GL drivers with feature level GLES 3.1.

We are not using apple GLES 3.0, we use google/angle

You can contribute by providing an working hello world GLES 3.1 sample and how to build it.