Do we have to input our monitor refresh rate in the .ini file? or just leave it with default value (-1).
[Render.FrameRate]
RefreshRate=60
For fullscreen you realy need Vsyng active. Does not matter where, in game or forced by nvidia driver, otherwise you will have tearing. You have more options to choose on nvidia driver.
For Bordeless you dont need, since is the windows window manager that takes cares of that.
You can disable SpecialK to not inject into CS:GO. Down the road, some games only works with global injection and others only with local.
For some reason, after the first start, the game keeps crashing, even following the instructions in the top and modifying the ini exactly like it was recommended, the game crash right when it opens. Only way to use it is to keep deleting the ini file and play in default 1080p in a 1440p display. Tried to alternative install method with the dll in the exe folder, still the same behaviour. Any advice where i need to look to figure what maybe is happening?
My system: Ryzen 5 3600, GTX 1070 with 451.85 driver, windows 10 2004 x64.
На пиратской версии будет работать?/ will it work on the pirated version?
It will crash if there’s a mismatch between the display mode of the game and SpecialK (fullscreen vs borderless.)
The “swapchain settings” require you to run it in Borderless so run the game ‘dry’ without SpecialK and double check that the in-game settings display mode is set to Borderless.
Illegitimate copies are not officially supported nor can we really provide support for matters concerning those.
Thank you, this worked! But now the game crashes, because I have dxgi.dll and dxgi.ini file inside my HZD folder. Do I have to move them somewhere else or rename them?
I finally got it working, weird thing is that i had to extract the whole SpecialK.7z file inside the HZD folder for it to run the game and not crash, i got the achievement sound when Ctrl+Shift+T
Is SpecialK possible to use in Exclusive Fullscreen?
Whenever I swap to fullscreen in Horizon, it just stays windowed (or straight up crashes). Both with default settings and Kaldaien’s settings from a few days ago!
@Kaldaien There’s a thread on reddit with a list of game’s issues and there’s GG guy there actually answering and it seems like gathering info, perhaps there’s a chance it could help if you DM’ed him about your findings (bckbuffer etc.)? Just a thought.
@Renly with the settings used it runs better than Fullscreen Exclusive. From a specific post.
@Kaldaien So I just changed my Monitor to use 8bit mode and it made Horizon a little bit more vibrant. Is this b/c now its using the proper 8Bit channel for the game?
As in for HDR mode?
Referencing to this statement.
As for the 8-bit swapchain problem, this is a lossy operation. The general graphics pipeline for an HDR engine is usually at least 10 or 11-bit per color component all the way up until pixels are blended together in the swapchain’s backbuffer.
Hey all, has anyone encountered anything like this: https://www.reddit.com/r/horizon/comments/i6o7xi/getting_this_weird_checkerboard_like_flickering/ ? Would Special K potentially be able to fix this, and if so, what settings would I want to use? Let me know if there’s anything you need from me to diagnose, my specs are likely different than the original poster, but the visual issue is the same.
I only saw this in the beginning part of game near waterfall. Looking at it caused Checkerboard shadow boxes to appear in the waterfall itself. In fact so far that is the only location it happens as far as I have seen.
Edit:
On side note I just changed my monitor to 8Bit instead of default 10bit thru AMD panel and now the game is no more washed out at all. Extremely vibrant and bright with zero greyish filter. Using YCbCr 4:2:2 Pixel Format as well and that definitely made the game look really good. So no wonder when using 10bit mode for HDR makes the game look dullish in color and brightness. Its losing a lot of conformatity as kaldaien stated it is.
… that’s a compressed colorspace…
So move it back to RGB Full then? Or YCbCr 4:4:4 one?
Either way changing monitor to use 8bpc mode instead of 10 definitely made difference.
4:2:2 is basically chroma subsampling, which you don’t want. I think RGB or 4:4:4 is best.
Use RGB Full. YCbCr 4:4:4 would look essentially the same as RGB Full.
Never use any 4:2:2 or 4:2:0 variants unless you know what you’re getting yourself into as the color compression can kill the image.
Yeah 4:2:2 basically lowers the chroma res, while maintaining luminance resolution. I know Kal’s Pg27uq monitor relies on chroma subsampling to free up bandwidth if you want to go native 4k at 144hz. The max it can do is 98 Hertz with 4:4:4, due to port limitations.
Okay thanks for the clarification on that. Well I will just stick to the 4:4:4 ones then 
hmm I am running 144Hz on native 1440p for my HDR. What would I have to use then? Ah I see nevermind lol.