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cdozdil / OptiScaler

OptiScaler is middleware that enables various upscaling technologies in DLSS2-only games. It allows non-Nvidia users to use upscaling by applying DLSS2 inputs to XeSS, FSR2, or FSR3.
MIT License
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[Horizon: Zero Dawn] Flickering trees with OptiScaler #38

Closed Ryusennin closed 1 month ago

Ryusennin commented 1 month ago

System: Win10 + Radeon 6650 XT (AMD Software 24.7.1)

The trees occasionally flicker when getting closer to them. Maybe it's during a change of mipmaps or LODs?

It's a difficult bug to reproduce because it doesn't seem to happen everywhere, but in some wooden places (east of Devil's Grief for example) it's quite recurring.

I've tried several versions of OptiScaler without any difference. It happens no matter which upscaler I select (FSR2, FSR3), it even happens without selecting any upscaler. It's enough that OptiScaler is installed in the game folder and DLSS appears available in the display menu.

It doesn't happen when OptiScaler is not installed. It doesn't happen either with the old Goghor mod (DLSS Unlocker), although you need to use version 2.1b (other versions have a lot of ghosting).

https://www.nexusmods.com/horizonzerodawn/mods/133?tab=files&file_id=474

cdozdil commented 1 month ago

Hi,

If it's possible could you share video of issue? A normal one and a problematic would be great.

Ryusennin commented 1 month ago

I'll try that soon, though the flicker occurs for a split second and I'm not sure it will be visible on video.

Ryusennin commented 1 month ago

Here are the videos:

o Correct display (DLSS Unlocker) https://youtu.be/uqXVLszXMGg

o Trees flickering (OptiScaler) https://youtu.be/68Q7IQ3h93E

cdozdil commented 1 month ago

Hi,

After experimenting with mods I have found the issue. This flicker is happening because of Nvidia spoofing. Even without OptiScaler if I put dxgi.dll (d3d12-proxy) it happens. Good news is you can use Goghor's winmm.dll + OptiScaler and flicker disappers. Just don't forget to set Dxgi=false from nvngx.ini, to disable Nvidia spoofing.

Ryusennin commented 1 month ago

It works! Thanks a lot for your expertise 💯