I sent an message to Unigine Group/Website asking what has happen to Vulkan support in superposition. This is my second message as the first one sent was about 1-2 years ago. Here's the reply sent today.
Vulkan support will land as an experimental graphics API in the upcoming UNIGINE Engine update (2.16) next month, but we do not plan to add Vulkan to our old benchmarks (including Superposition) yet.
Vulkan support will land as an experimental graphics API in the upcoming UNIGINE Engine update (2.16) next month, but we do not plan to add Vulkan to our old benchmarks (including Superposition) yet.