

See in Glossary, then select the Player category, and enable Metal Editor Support. In the Editor, go to menu: Edit > Project Settings.How do I get Metal graphics on my Mac? Enabling Metal

What is Apple Metal graphics? Metal provides a platform-optimized, low-overhead API for developing the latest 3D pro applications and amazing games using a rich shading language with tighter integration between graphics and compute programs.

Its not an API that would draw developers (especially small-time developers) away from using OpenGL or encourage them to make more titles for OS X. Is Metal better than Vulkan? Vulkan is certainly efficient but I wouldn’t call it ‘convenient’. On Jat WWDC, Apple announced the second version of Metal, to be supported by macOS High Sierra, iOS 11 and tvOS 11. Metal has been available since Jon iOS devices powered by Apple A7 or later, and since Jon Macs (2012 models or later) running OS X El Capitan. Or, What graphics cards are compatible with Mac? Apple’s website currently lists these GPUs as being compatible with macOS:
