HDR PQ Red color fix LUT for ReShade
Do your Reds look Orangey when you enable HDR? This will correct that, and also provide a pseudo tonemap for a brighter HDR game.
In a nutshell, makes reds more red and less orange in HDR PQ mode, and has optional tone/brightness included.
This is my personal LUT file for the ReShade LUT shader to correct the skewed red colors when I enable HDR. I use HDR PQ mode (the other HDR mode doesn’t mix with ReShade for me) on a PG27U monitor, so I expect it to look great. This monitor has a Wide Gamut mode for SDR which makes red in particular look fantastic, but for whatever reason the normal gamut mode looks orangey with RGB (255 0 0) red, and the HDR mode doesn’t let me use Wide Gamut. (Actual HDR video seems to look great, but I suspect Cyberpunk 2077 does not have an actual HDR color gamut and just carries SDR color into HDR mode; missing out on some of the spectrum.) When enabling HDR, reds got orangish and magenta/purple got bluish, so I fixed it. If you have a similar problem, give this mod a try.
This LUT is for HDR PQ mode only. It is not made for SDR. It pushes the incorrect orangey-reds toward magenta-red so the color looks much closer to how it should. That is what the chroma (color) slider in the LUT shader settings will adjust. Recommend this slider to maximum.
The luma (light) slider acts as a cheap pseudo-tonemap to brighten up your HDR experience while keeping the dark spots dark. Recommend this at about .250 to brighten the day. Adjust it while looking a bright sky/sun to avoid making bright things blend together.
Screenshots are approximations/edited since HDR can’t be properly screenshotted.
Required:
HDR capable Monitor. HDR PQ mode ON in-game.
ReShade
Installation:
Extract this file to Cyberpunk 2077\bin\x64\reshade-shaders\Textures
Open ReShade in game and turn on LUT.fx
Turn off Performance Mode if it’s checked, and find the LUT.fx settings. Type “LutHDR.png” into the fLUT_TextureName box.
Adjust the Chroma and Luma sliders as you see fit, you can use the UI red as visual reference for the chroma slider. (I use chroma 1.000 and luma .250)
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