Listen to this gentleman, you’re indeed able to toy around with… a lot of console variable as well as ticking a ‘raytracing’ box in project’s config ‘rendering’ tab ( after ticking some 'skin cache… ’ box aswell).
If you check DynamicRHI.h as stated by Snafuh you’ll notice a large commented piece of code #WITH_RAYTRACING featuring a lot of empty RHI hooks.