Quake II RTX does not launch with older Nvidia drivers since 1.4.0

[guest1984]

Since updating to 1.4.0 game menu doesnt load. The game starts in Steam, then exists instantly.

The latest Nvidia drivers work and Vulkan is automatically set. This update means it breaks support for older drivers (i'm on 445.87)
possibly if they don't include the new Vulkan API. When I tested the Vulkan API there was no difference between Vulkan and the Nvidia extension in Q2 RTX
Is this a bug in the 1.4.0 update? I reverted by drivers as the latest Nvidia drivers cause CPU latency since Reflex was implemented

Thanks

[apanteleev]

What happens when you try to run the game without Steam? Just locate the q2rtx.exe executable and run it. There should be some sort of error message.

[guest1984]

Hi Alexeym thanks for the quick reply. It says the follow when launching the exe
q2rtx.exe - Entry Point Not Found

The precedure entry point vkGetBufferDeviceAddress could
not be located in the dynamic link library
D:\Games\SteamApps\common\Quake II RTX\q2rtx.exe

[apanteleev]

Thank you, that made sense.
Fixed in 0a16c73

Keeping the issue open until verified on your end.

[guest1984]

No problem :)
Do I need to modify q2rtx.exe or other files somewhere as per 0a16c73?

[apanteleev]

Yes, you need a replacement q2rtx.exe, and new shaders that are compatible with it, because there have been changes in master since v1.4.0. Here's a package with that for you, just extract it over the existing q2rtx install.
q2rtx-patch-0a16c730.zip

[guest1984]

I have given that a try and it launches but running RTX there is only a black screen with sound.
FPS is also 10fps with settings I ran before (3440x1440, 2080Ti) which gave around 45fps
Same with Nvidia and Vulkan extensions. Same with all settings lowest / off
Open GL does work
Thanks for your help with this

[apanteleev]

That's what would happen if you didn't extract the baseq2/shaders.pkz file from my zip attached above. Please make sure to replace that file as well as the executable.

[guest1984]

Sorted now, thanks again. I had a shaders_backup.pkz in the baseq2 location. Once I moved this it worked :)
Having a playthough again. Here's a screenshot.
A fantastic classic game, brought to life with modern hardware

https://i.imgur.com/XurMUTz.jpg

[apanteleev]

Great, thanks for confirming.
Closing.