Guys, listen, this is not full-fledged ray tracing, I’m just creating something similar to it and trying to make the graphics of outdated games beautiful and playable
I think he's referring to something called "Uber RT". There's apparently a github for it, and it seems to be packaged with some other stuff. I've only seen it mentioned passively on Reddit, however.
This is not real ray tracing or even close to it. This is just screen space global illumination. RESHADE can't access the game's geometry which makes it impossible to do actual ray tracing.
My thoughts exactly, even then, Reshade should provide utilities to simulate this. Even without RTGI. But... This doesn't really make use of them in a very good way, at least judging from the screenshots provided. In fact, none of them show how this really works. Would've preferred close-up or character shots.
The dh_uber_rt shader used there looks very performant, and seems to be really ray tracing, as I can see its results on perfs. Reshade has access to depth buffer, so I guess there's still some way to do rt, at least for shadows. Take a look at Community Shaders for example.
Depth buffers don't work for true ray tracing, it's just screen space. Ray tracing counts objects that are out of view, not screen space. It also supports reflection bounces. This effect does not.
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Boris (enb) does something "close" with sun position approximation, for his shadow and ao (im not sure about this) improvement.