Nvidia paid Square Enix a lot of money to be in Nvidia's partnership program. Which is why the new Tomb Raider supports it.
I don't have a dog in this hunt.
I only brought ray tracing up because it is akin to how CT scanners create images
of the internal body. I spent about 34 yrs as field engineer working with CT and MRI.
CT uses a form of ray tracing called projections, from an Xray tube, that rotate around the body and
because Xrays penetrate the body from a given number of projections and different angles or positions, the internal structures of a body can be
reconstructed through a process known as back projection. This is essentially how ray tracing works to create an image (as I understand it).
The math involved is quite extensive but CT has been doing it since the '70s.
