HDR....oh boy

[AJ CoRe TV]

I just bought this game on sale, been watching for price drop, wanted to try out HDR games on my new HDR monitor... literally the devs removed HDR from just days ago LOL! I have the worst luck.

[acceler8]

Originally posted by R.Sakai:

If it finds an AMD gpu, it will disable HDR support in engine, but not windows, causing washed out colors. This is not something we can affect unfortunately.

Any plans to support HDR on AMD (without Windows 10)? I have the card (RX-580) and the screen (C27HG70). Thanks!

[AJ CoRe TV]

Originally posted by acceler8:

Originally posted by R.Sakai:

If it finds an AMD gpu, it will disable HDR support in engine, but not windows, causing washed out colors. This is not something we can affect unfortunately.

Any plans to support HDR on AMD (without Windows 10)? I have the card (RX-580) and the screen (C27HG70). Thanks!

I had the RX 480 w/ my C32HG70, then I tossed the card for the GTX 1080.. I think the fix will come for both cards at same time.

[Ryfly05]

Everyone is talking about how the new Win 10 update ruined HDR, but that is not my experience at least with this game. HDR worked like it always had in Obduction after the new fall win 10 update. I could leave HDR turned off in the display settings, then when I launch the game it automatically turned HDR on and looked great. It wasnt until update 1.6 that HDR is broken.

Now the game doesnt automatically turn HDR on, and if I turn it on through display settings, colors are completely wrong.

[MASTAN]

A good explanation about how HDR works in Windows 10: https://forum.doom9.org/showthread.php?p=1810891#post1810891

In the last couple of days I've talked to Microsoft and NVidia about HDR metadata passthrough. And the current situation is as follows:

1) In Windows 10 Creator's Update there's a new option in the OS display settings dialog named "HDR and advanced color". If you turn this option off, your TV will always be running in SDR mode. If you turn this option on, your TV will always be running in HDR mode. Windows does currently *not* support dynamically switching HDR mode on/off while you're playing an HDR movie (or playing an HDR game)! Microsoft may consider dynamic switching in the future, but don't hold your breath, I'm not too optimistic that they'll add that any time soon (if ever). But let's wait and see.

2) If you switch the "HDR and Advanced Color" option off, your TV will always receive SDR from the PC. If you play an HDR movie in this situation with the madVR option "passthrough HDR content to the display" activated, the OS/GPU will perform a low quality HDR -> SDR conversion behind madVR's back. Consequently, HDR content will look "ok", but the quality is not really good. SDR content will look "perfect", though.

3) If you switch the "HDR and Advanced Color" option on, your TV will always receive HDR from the PC. If you tell madVR to "passthrough HDR content to the display" in this situation, HDR movies should look "perfect". If you play SDR content in this situation, the OS/GPU will convert SDR to HDR behind madVR's back. Consequently, SDR content will look "ok", but it will not be perfect.

4) Currently HDR and fullscreen exclusive mode is a problematic combination. It's partially the fault of the OS, partially of the GPU drivers. It's not clear yet if this will be fixed, or when. Generally, Microsoft wants to get rid of fullscreen exclusive mode. It might suddenly disappear in a future Windows 10 version. I'm not happy about that at all. Which is one of the reasons I've been recommending Windows 8.1 for months now.

5) Nvidia comes to the rescue of all HTPC users who want perfect quality for both SDR and HDR content: Nvidia's private HDR API allows madVR to dynamically switch the TV into and out of HDR mode, as needed. For this to work, you need to deactivate the OS "HDR and advanced color" switch.

6) madVR v0.91.10 had a bug where Nvidia's private HDR API was only called properly in the 32bit madVR version, but not in 64bit. This bug is fixed in madVR v0.91.11.

7) All Nvidia drivers starting with 381.xx up to the latest (384.76) have a bug which results in madVR not being able to switch the TV into HDR, when using FSE mode. You can workaround the issue by disabling FSE mode. Alternatively, using any driver between 376.xx and 380.xx should make dynamic HDR switching work perfectly.

As it stands right now, for all Windows users who want to do both SDR and HDR playback in perfect quality, I can only recommend Nvidia GPUs, because only Nvidia's private API allows madVR to dynamically switch the TV between SDR <-> HDR atm. I'm talking to Intel, maybe they will add a private API, too. Unfortunately my AMD contacts have gone silent. There's still hope for Windows 10, but I'm not overly optimistic atm.

It's about video playback actually, but all the same should apply to HDR games.

Nvidia & AMD each has their own private API to work with HDR.
From https://forum.doom9.org/showthread.php?p=1815291#post1815291 :

AMD's private HDR switching API seems to work well, but it's more limited compared to Nvidia's API. AMD's API only works if there's active fullscreen D3D11 video playback (or gaming), which also has to be 10bit! Otherwise, the AMD API will do nothing. Consequently, madVR will switch to passthrough only in the moment when you go fullscreen, and only if you configured madVR to use 10bit D3D11.

Nvidia's API also works in windowed mode, and also with 8bit D3D11, even with D3D9.

Though that info is almost 3 month old and there's also Win 10 Fall Creators Update, so something could have changed.

[AJ CoRe TV]

Originally posted by Ryfly05:

Everyone is talking about how the new Win 10 update ruined HDR, but that is not my experience at least with this game. HDR worked like it always had in Obduction after the new fall win 10 update. I could leave HDR turned off in the display settings, then when I launch the game it automatically turned HDR on and looked great. It wasnt until update 1.6 that HDR is broken.

Now the game doesnt automatically turn HDR on, and if I turn it on through display settings, colors are completely wrong.

i wonder if the devs could roll back whatever they did @ 1.6 when it comes to HDR.... do you have Nvidia?

[Haldi]

Originally posted by Halloween Jack:

Change in HDR feature: Due to changes in how Microsoft supports HDR in Windows 10, the in-game HDR option has been removed. Workaround: For supported nVidia graphics cards, turn ‘on” the HDR option under Windows Settings > System > Display. For AMD graphics cards, due to current engine support, washed out visuals will be noticed with HDR. Please temporarily disable the HDR option within windows while playing with an AMD graphics card.

OHHHHHHHHHHHHHH......
That explains stuff...
So i've just now updated via GoG to 1.6.5, and whats worse, deleted the old installer files -.-
I'm still runing windows before the Creators update (v1607) and there fore do not have the HDR option.
So i was really wondering why Obduction does not show the HDR toggle in my displays OSD.


P.S why do AMD cards have washed out visuals ?

[AJ CoRe TV]

Originally posted by Haldi:

Originally posted by Halloween Jack:

Change in HDR feature: Due to changes in how Microsoft supports HDR in Windows 10, the in-game HDR option has been removed. Workaround: For supported nVidia graphics cards, turn ‘on” the HDR option under Windows Settings > System > Display. For AMD graphics cards, due to current engine support, washed out visuals will be noticed with HDR. Please temporarily disable the HDR option within windows while playing with an AMD graphics card.

OHHHHHHHHHHHHHH......
That explains stuff...
So i've just now updated via GoG to 1.6.5, and whats worse, deleted the old installer files -.-
I'm still runing windows before the Creators update (v1607) and there fore do not have the HDR option.
So i was really wondering why Obduction does not show the HDR toggle in my displays OSD.


P.S why do AMD cards have washed out visuals ?

Nvidia has same washed out colors.

[Haldi]

Found out that's how it's supposed to be!
This windows HDR modus is only for Streaming apps or such that cannot force HDR mode themselves. Windows itself does NOT support HDR.

[AJ CoRe TV]

Originally posted by Haldi:

Found out that's how it's supposed to be!
This windows HDR modus is only for Streaming apps or such that cannot force HDR mode themselves. Windows itself does NOT support HDR.

we are talking about in-game. Not just windows desktop.

[Haldi]

Which has been deactivated in the last patch...

[AJ CoRe TV]

star wars battlefront 2 HDR actually works!

[AJ CoRe TV]

Originally posted by t3opc:

Originally posted by adrian97c:

star wars battlefront 2 HDR actually works!

So Battlefront 2 works but Obduction still doesn't?

Its probably better to compare two UE4 games as if they need to rely on the UE4 implementation then perhaps that's broken even though I can't find anything saying it is.

https://docs.unrealengine.com/latest/INT/Engine/Rendering/HDRDisplayOutput/

^^^ Also see the link for other Nvidia settings that may be necessary.

Paragon (unreal) HDR actually works!

[Haldi]

https://www.reddit.com/r/paragon/comments/6yrmet/is_anyone_playing_with_hdr_enabled_pc/

[MASTAN]

Recently Assassin's Creed: Origins received HDR support: https://steamcommunity.com/app/582160/discussions/0/1500126447406673471/

[AJ CoRe TV]

sadly, i can now also confirm, after updating Paragon just now.... HDR is no longer enabled. It was working great as of 2 1/2 weeks ago :(

I'm in process of updating my AC:O game now, will test out for myself in a few... I run native 1440p w/ GTX 1080 A8G via Displayport 1.4... fingers crossed