Horizons for macs to follow?
https://arstechnica.com/gadgets/2018/02/vulkan-is-coming-to-macos-ios-but-no-thanks-to-apple/
"Today, that gap is being substantially filled, with the open source, royalty-free release of MoltenVK—a runtime for macOS and iOS that offers an almost complete subset of the Vulkan API implemented using Metal."
https://arstechnica.com/gadgets/2018/02/vulkan-is-coming-to-macos-ios-but-no-thanks-to-apple/
"Today, that gap is being substantially filled, with the open source, royalty-free release of MoltenVK—a runtime for macOS and iOS that offers an almost complete subset of the Vulkan API implemented using Metal."