In the above video I start out with the shader disabled and throughout the video I toggle it on and off. Watch the trees, when they're darker the shader is on, and when they're lighter it's off. You'll get the hang of it.
You want to look for general lighting, colour being 'projected' onto other surfaces (ie. orange from mirror shroud projected onto mirror itself) and places where shadows should be projected (ie. real-time shadows underneath some dashboard components). Cockpit components, tires, car carriage shadows, trees, barriers, etc. all seem to get some shadow treatment.
In the above video I toggle the shader on and off throughout. You want to look for general lighting, tire and car carriage shadows, body panel joint shadowing, etc.
There are some drawbacks like GPU load and visual ghosting where the RT stuff takes time to update. You probably need a high end 40xx Nvidia GPU to optimize away the visual artifacts so I probably won't be using this myself but wow is it impressive.
This was done with ReShade enabled by The Iron Wolf's Crew Chief GTR2 Enhancements Plugin and ReShade addon (work in progress) and the dh_uber_rt shader:
"This shader is an All-in-one "Screen Space Ray Tracing" shader. It produce Global Illumination, Ambiant Occlusion and Reflections in a highly customizable little package.
I was blown away that it really did seem to be doing what it said it would be doing with RTX with GTR2.
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I tried running it with GTR2 but it crashes currently. Nvidia looks for feedback, so if you have time....
