I'm surprised every last dev doesn't do this yet.
Cuz the hardware is still early gen (nVidia is only on 3rd-gen RT hardware), the installed base is not large enough, and real-time RT hasn't been around long enough. In time it will become a normal standard feature. 4A Games already said they will be building off what they did for
Metro Exodus Enhanced Edition, with their next game being 100% ray-tracing all the time.
If developers have to spend time during raster "tricks" like shadow mapping, it takes them like 3-4 times more work to design a scene than with RT.
And it produces more accurate results than faking. For example, no need for Ambient Occlusion as a specific feature, because ray-traced lighting produces natural ambient occlusion. 4A Games provided an excellent example for DF's video on
Metro Exodus EE of how much less manual lighting work is needed for scenes compared to ray-tracing.
I tend to think RT is a resource intensive waste that we didn't need, but it is here to stay no matter what.
At this early point it is, but it won't be forever. And I look forward to the day when it's just a normal everyday feature that all games use but which no one talks about cuz it is too common, like tessellation or screen-space reflections. I've come to appreciate a lot of things about ray-tracing, from reflections showing everything that's in the environment even if said objects are not on-screen (it always bothered me with screen-space reflections how as soon as the object being reflected is no longer on-screen, then the reflection disappears too), light coming from light sources matches the shape of those light sources (i.e. no more spherical point lights coming from long tube-shaped light bulbs), global illumination with bounce lighting that picks up color information from surface, more accurate shadows, more accurate refraction of light through transparent objects, etc.
RT that can't be disabled, that ought to go over like a lead balloon.
Cuz at least with
Metro Exodus you had the option of using the normal version, or the
Enhanced Edition that requires RT hardware. It seems waaaaaay too early for new to be requiring RT hardware at this point.