While there is already MoltenVK for Vulkan implemented over Apple’s Metal graphics API, the graphics engineers at LunarG have announced KosmicKrisp as a Mesa-based driver implementing Vulkan over Metal.
LunarG announced KosmicKrisp as a Vulkan driver for Apple hardware built on the Mesa graphics driver framework. This driver is currently close to Vulkan 1.3 conformance. Development on KosmicKrisp appears to be driven in part by Google with wanting to use this Vulkan-on-Metal solution for accelerating the Android emulator on macOS for enhancing the Android developer experience.
The code still has to go through the review process but LunarG is hoping to upstream this driver to Mesa. An updated Vulkan macOS SDK will include both KosmicKrisp and then MoltenVK for legacy support.
More details on this new KosmicKrisp Mesa driver via the LunarG blog.
