Eevee is the real-time viewport renderer and uses OpenGL. Blender's path tracer is implemented with Cuda and OpenCL. Also OpenGL supports compute shaders FYI.
OpenGL 4.3 (Aug. 2012) also supports compute shaders. Apple just never updated beyond OpenGL 4.1 (Jul. 2010).
Re:Blender 2.80
by indolering on Wednesday July 31, 2019 @01:50AM
(#20571980)
It's such stupid technical debt, they just aren't going to get lock-in from it like Microsoft did from DirectX. Sure, it was ready before Vulkan was, but the cost of rewriting whatever investments they have made in Metal must be outweighed by the long term maintenance costs. ugh
Apple abandoning OpenGL sucks a lot, but them not supporting Vulkan is much worse.