ZOMBI (2015) RTGI doesnt work.

After 10 years, I decided to try the game on a PC and install rtgi on the game. 
I have been working with reshade for millions of years and I know how to install it, work with it, etc. the question is why the depth buffer is not defined in the game.

as I understand it, this is due to the fact that in the game it is impossible to disable anti-aliasing in any way. even on PCGAMINGWIKI there is no way to disable it.
maybe I don't know something, but who can tell if it's being solved or not? 
thanks.

If you can't disable MSAA, then unfortunately no. ReShade cannot access depth when MSAA is used (it will say as much on "Generic Depth" entry on the add-on page).

yeah, i know that, I thought someone had already encountered a problem in this game and could tell you how to disable anti-aliasing.

So interesting situation. I was able to nuke antialiasing with the Zombi Manager (it disables a lot of effects) and it still didn't work. Out of a lark, I installed DgVoodoo and low and behold the depth buffer was accessible and working with RTGI. It would appear that something about how DgVoodoo processes the buffers makes them accessible to Reshade while the default game doesn't.

HOWEVER, DgVoodoo can't process the game lighting correctly and distorts the flashlight and other lights. 

Side note: I even tried using ThirteenAG's wrapper and Helix's 3D fix, both had same result. But I did discover that the Helix DLL added a hotkey to disable the minimap so all is not lost.

EDIT: So reverting back to reshade 4.9.1 works. So it's just the 5.x versions that aren't seeing the depth buffer properly. Strange but there you have it.