Ray Tracing

GitHub - GPSnoopy/RayTracingInVulkan
Ray Tracing in One Weekend — The Book Series

TechPowerUp - Khronos Group Releases Vulkan Ray Tracing on 2020-03-17.

Games

brech. - Q2VKPT Quake II with a Vulkan path tracer.
Archive.org - amietia.com - Quake 2 Realtime GPU Pathtracing

Wolfenstein: Ray Traced
Quake 3: Ray Traced
Quake 4: Ray Traced