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+1
That said, the rest of the information in this thread is fake news. HDR is amazing with good screens and HDR support has been absolute fine since Windows 11 has been introduced. There's no mess at all, just some devs not caring about it.
Its because as i discovered (and now rising awareness of this issue) windows outputs LIMITED HDR color range (where black is 64 and white is 940, instead of 0 and 1024), set tv or display setting to LIMITED range and colors will be correct for most of HDR output. but some games does FULL HDR range some also may output LIMITED HDR, and this may end up DOUBLE LIMITED RANGE, to fight it you have to rise contrast by 9% and lower brightness by about same amount in FULL range, using LIMITED color range test pattern, to make FULL range with Contrast\Brightness match output you have in LIMITED (on TV, not on video card!), Basically you have to tweak B\C to make color range 0-16 to become pitch black and range 235-255 to become pure white. Then you have to enable limited output range on TV\Display to make double limited expansion for such games.
You dont know what you talking about. Im telling you - Windows HDR output is BROKEN , it ALWAYS OUTPUTS AS LIMITED even if you video card says its full It is NOT FULL!
Use any color range pattern picture in SDR and HDR (both sdr and hdr test pattern pic will work) to see for yourself.
To fix it you have to set LIMITED on TV\Display to make limited to full expansion and to map 64 black point to 0 and 940 white point to 1024!!! When you will set LIMITED on TV it will not display limited range, it will do Limited to full expansion and will correct colors!
Also any game itself may output in LIMITED range, and i told above how to fix double limited.
And amost all of SDR games on PC are Limited and need TV or DIsplay to be set to limited, to actually get a FULL color range, because devs are lazy and mostly dont know or dont care about color ranges and just porting limited console games to pc without recalibration wihout expansion of limited to full, so almost all SDR PC games has washed out dim colors. This problem exist for almost 3 decades and only recently some games like Resident Evil 7, 8, 2, 3, 4 (remakes) started to give player an option to chose between Rec709 and sRGB output, which is basically a settings that does limited to full explansion if you set rec709, or does nothing if you set sRGB, and correct one is Rec709 its equal to setting display to limited when you video card ouputs set to full, but only limited to game.
Rec.709 and sRGB have got nothing to do with full/imited RGB, they are separate things.
My guess is that you probably just like contrast a lot and think that crushing and clipping blacks looks better.
You really has no idea how HDR works on Windows.
Dude, for ♥♥♥♥ sake, stop spreading missinformation if you dont know whats going on.
Whole color range that windows outputs in HDR does not happen with respect of GPU settings, windows automatically compressing color range to HDR limited, NO FREAKING MATTER WHAT YOU SET IN GPU! Can't you understand that fomr first 2 messages where i repeated same thing?
Your Windows HDR color is compressed and ALWAYS LIMITED, and there is no system level windows settings to choose from limited or full for HDR!!!
And almost any game that uses Windows HDR api, will output compressed limited HDR. And in almost every HDR game that works via Windows HDR related api - you will have no true white and no true black and whole color range will be shifted because of that, because black should be 0 0 0 in full HDR range and white should we 1024 1024 1024, but Windows makes black point 64 64 64 which is dark grey, and white point ad 940 which is bright grey, this what limited color range is.
And rest of colors between 64 and 940 are shifted because they are not on their places as range is literally compressed! And this is why majority of windows hdr games looks washed out and dim compared to console versions where hdr looks as supposed because console does limited to full expansion if settings are correct.
And the only hardware way to fix this is set tv or display to limited color range! As i said many times before, but you seem has no understanding how it works and thin wronly that this setting will do color range limited, but nope, actuall this setting on tv does color range full, this setting is reversed, it does not say to you what output will be, it says to tv what input signal is, and input signal actually limited so we set limited on tv or display to match that and to let tv or display do color range expansion from limited to full and actually display a full range.
And as i said before - graphic cards driver setting is ignored by widnows. Your Nvidia control panel may say FULL, but windows will still output HDR as limited, it does its own color range compression on top of graphic card сщдщк, and this causes problem because video card expect color range to be full and reports to tv or display that color range is full, but in fact windows compressed it to limited and did not "report" it to driver and to tv via hdmi, so if tv or display set to auto, it getting confused and does not display correct colors because it "think" your video card sending full signal, when in fact widnows send limited. So this is why you need to force limited on tv or display to correct that when you have hdr enabled in windows!
And just to make it clear:
Video driver full\limited setting works like this in SDR and HDR:
Limited - card compressing color range to limited and outputs limited signal.
Full - card does nothing and output color range as is and ouputs full signal.
But when you set HDR on on windows it works like this:
Limited - card compressing color range to limited, but windows hdr output already compressed it to limited before and outputs is double limited signal. Totally broken and hard to fix on many displays and tvs.
Full - card does nothing and output color range as and supposed to ouput full signal, but windows still already compressed color range to limited so in fact it ouputs limited color range but wrongly reports to tv or display that its full.
Display full\limited settings works opposite:
Auto - tv used signal data to set mode, usually it should be same setting on both sides. Limited=limited and full=full.
Limited - is no making signal limited, not compressing it, it tells tv that input signal is limited and expand its to full, outputing full color range if input signal was limited and double full if signal was full.
Full - basically does nothing and just shows signal as is. Most of displays has this set as default and washing out colors because of this.
When your windows hdr is on this is what dislay settings does:
Limited - expands limited windows hdr into full color range and displays correct colors as intended, with pure black and white
Full - does nothing and displays compressed limited color range without expansion, turning black and white into shades of grey. Default settings for most of people, which is why almost every HDR game on windows getting threads like "HDR is broken!".
And its broken, but people dont realise that HDR is broken on windows because it outputs limited color range which turns 0 (black) to 64 (grey) and 1024 (white) ot 940 (grey) and there is no option to set full color range for Windows HDR output.
Only some games that bypassing windows HDR output via Nvidia api and display HDR with this setting off, may actually show correct HDR... until game's own HDR output is not... LIMITED!
And many games does their own color range compression to Limited, which makes most of them limited by defautl, and then windows compress it again to limited and you are getting double limited HDR output, completely washed out and dim!
P.S. - i was investigating this problem and fighting color range mess for years, and my LevelsPlus shader to fix this problem even included in Reshade legacy pack of shaders and in Nvidia currated ansel shaders. So i kinda know a little bit more than you about this.
The game is CONTROL + (native) HDR mod, look it up. Thanks.
1024 is, first of all, 1 larger than a 10-bit signal can carry. Assuming you meant 1023 and 10-bpc, then that would be 10,000 nits. The reason nothing outputs 1023 is because that's ludicrously bright. Has nothing to do with "full range," which also is not a thing in HDR.