Reshade - reshade.me
Preset - https://drive.google.com/drive/folders/1_rxonQ6QGIF52AA_X0I9fv_WWYYzjazn?usp=sharing
RTGI 0.20 By Pascal Glicher - https://www.patreon.com/mcflypg
Installation
Open reshade setup, select RDR2.exe select all effects and install as Vulkan
Install RTGI Shaders
Put preset RDR2_KTMX.ini and RDR2 NON RTGI.ini in \Red Dead Redemption 2 folder
Open game, press 'home" and select preset.
RDR2 NON RTGI.ini is for without RTGI.