Quake 2 Ray tracing - AMD 5700 XT

[alfredon121]

This my Reshade Quake 2 xp RTGI on AMD 5700 xt. Work in progress!
https://www.youtube.com/watch?v=1kF0wXJP-Ts&feature=youtu.be

[Tiranasta]

Cool, but this isn't true world space triangle ray tracing like Q2RTX.

[alfredon121]

No, this is the RTGI reshade shader from Marty McFly.
This is Marty explanation:

I see a lot of comments concerning the "it's not ray tracing, it's screen space".

Allow me to clarify a few things: the term "ray tracing" already defines what it does, tracing rays. If I do that by calculating ray/triangle intersections by traversing a BVH like the RTX stuff does it or trace rays in screen space and compare the Z buffer against it, does NOT matter. I am aware that the term "Ray Tracing" has been used a lot lately in connection with RTX but that does not falsify the usage of the term for other applications, I haven't named it like that for clickbait.

Unigine's latest benchmark "Superposition" contains an implementation they call SSRTGI - Screen-Space Ray Traced (!) Global Illumination, highly similar to what I'm doing on ReShade. So they are calling it Ray Tracing as well, are they wrong, too?

[MASTAN]

Glass and water are clearly not ray traced.

How is it different from screen space reflections that are widely used?

Armor area in the very beginning - why is it so bright? Does it use prebaked lighting from Q2? There are no sources of light there, in Q2RTX it's quite dark:
https://imgur.com/a/V556knH - you can see in the second screenshot work of realistic GI, light from sky being reflected from rock surfaces behind player finally ends on the ground and is partially obstructed by player forming his shadow.

[alfredon121]

Good point. I'm not debating that RTX looks more realistic. Mine reshade is work in progress.

[i-tan]

hi i have earthquake 2 and rtx, but they don't work ... what happened? the game starts and 2 seconds later they close...

[Nasher]

Most of the "RTX" stuff can be replicated very closely using conventional lighting. It's 99% a gimmick and often goes too far making things too reflective and shiny.