The game is buggy around HDR right now, but it’s fixable. The core of the problem is that it sets your HDR brightness parameters to wild values whenever you’re changing game settings. So just go back to Brightness, and set correct values to the Black point, White point and Brightness - all over again. Might have to do it several times. But with the correct values, the game looks OK.
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Thanks for the tip. What do you think are good black, white and brightness?
I guess it depends on the display?
It does depend on the display. For me on LG C2:
- Black point: minimum
- White point: 1000
- Brightness: 135
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Cool, thanks for those settings. It should amazing on an OLED 
To be honest, not really. It looks OK, but nothing spectacular like in other games. I think the devs were in a hurry to add minimal support, and hoping they’ll improve it later.
My limited understanding is that a game has to be explicitly designed for HDR to utilise better colours and contrast. It doesn’t seem like the devs did that. Not surprising, because the first beta didn’t even have thr minimal HDR support we have now.
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Hopefully they’ll improve the HDR over time.
I mean there’s an HDR toggle in the game. It’s defiantly supported and designed for HDR. I personally just think the colors are all dark to begin with, so there isn’t really much of a wide range from bright to dark. Like in games with a sunset or the sun peaks out, it almost hurts my eyes on my display. But in this game, there isn’t that massive contrast in color, so everything is just kinda gray toned with HDR on
And to the OP I’ve adjusted the settings many times but the game looks better with HDR in-game off and just using windows auto-HDR, at least to me
Good idea re Auto HDR. I’ll try that!
EDIT: One thing that always confuses me with Auto HDR is, sometimes Windows shows a notification showing something like ‘your game is benefitting from Auto HDR’ and sometimes it doesn’t. I thought it was meant to work on all games or is it only certain games?
That’s what I meant with “need to be designed with that in mind”. The artists have to create the picture with HDR contrast and colour range capabilities, and then dumb it down for SDR. D4 however looks like it was made for SDR and then had poor HDR support slapped on.
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Even the default HDR looks fine. You might have to play around with your display settings and/or adjust the color temperature.
I can confirm on a 42 inch LG C2 the blacks are deep and inky and the contrast is huge.
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Kinda. But the colours are washed out. I thought it was just the Fractured Peaks, but Dry Steppes are also washed out. Is it for you? By washed out, I mean that they look like SDR. And it’s just D4, other games are fine.
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It’s not the best HDR implementation but it’s definitely above SDR. Some areas can look a little washed out. Switching to cinema for the HDR mode seems to help a lot but you lose a little input lag reduction from game optimizer. It balances out though if you enable Nvidia Reflex + boost.
Game optimizer still runs and G-sync still works even if you use another HDR mode like cinema, it just disables some settings in the game optimizer.
I downloaded the HDR callibration app from the microsoft store and things look a tad better I think.
I have an QD-OLED monitor and use windows 11. No matter the in-game or monitor settings the blacks look more washed out than any other HDR game I have played.
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Can you please share your LG C2 settings? HDR and other stuff. Thanks.
I’ve tried with HDR enabled in game and not (so it will use Auto HDR). Auto HDR seems a bit better but still seems a bit hazy / washed out. Compared to other games like Cyberpunk.
Unless it’s the art direction.
SDR looks better imo.
I am just using the LG cinema HDR mode with all default settings for picture settings, which is by far the most accurate with the best contrast. It’s also the closest to the “Expert 1” color setting/temperature on my Sony Bravia OLED, and that setting is professionally calibrated by Sony engineers to give the most accurate HDR. Gamma is default 2.2, and I haven’t used Windows HDR calibration. I use default brightness settings in Diablo IV with just HDR enabled. Color settings in Nvidia control panel are also default.
Like I said you still get game optimizer and G-Sync with cinema mode enabled for the picture settings, but it’ll just disable picture settings in the game optimizer and the setting to reduce input lag although you still get low latency. This can be offset by enabling Nvidia Reflex + boost in D4 if your GPU can take the slight performance hit.
Thanks. Is that ‘Low Latency mode’ in game settings, the same as Reflex/boost?
I don’t know if they’re exactly the same but based on my own anecdotal experience the setting to reduce input lag in game optimizer and Nvidia reflex + boost lower input lag significantly and feel roughly the same.
I honestly think you’d be good either way since LG OLEDs including the C2 are known for their incredibly low response times and input lag.
You can find Nvidia Reflex and Reflex + boost in the Diablo IV game settings right where you’d set things like DLSS/DLAA, resolution scale etc… assuming you’re using an Nvidia card that supports it.
Cool, thanks.
I’m 100% not sure what I did but it’s looking much better now. I’m still using Auto HDR but changed a few things (set it to RPG mode in the TV game optimizer and lowered the in game SDR brightness) and it looks awesome.
It’s probably not perfect but I’m happy now.