How to achieve 9300K White point easily?

RetroArch Additions Shaders
#1

What is the easiest way to append a 9300k white point pass to a shader chain?

#2

Easiest way is probably to make a LUT for the reshade/LUT shader and put that as the first pass 1x scale before the reset of the shader preset.

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#3

Definitely that. If you can create a display calibration with 9300k white point for your display with DisplayCAL you can easily create a reshade compatible put from within the software. You would need a colorimeter though.

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#4

I actually already use Display CAL since I have a wide gamut monitor and colorimeter but I was hoping that there was some easy 1-2-3 way without having to create additional luts.

The problem I have is that I have to use the reshade program since otherwise I’d have to create a new preset everytime I wanted to combine LUT + shader preset.

#5

Yeah, no way around that AFAIK. However, the Qt desktop UI makes it very easy to add shaders in front of other presets. It should make the process pretty painless.

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#6

Maybe you know how to create a LUT that creates a 9300K white point profile and can tell me how to do it. I don’t want to create an account to post on the DisplayCAL forum if I don’t have to :smiley: tnx

Hunterk: it’s still not ideal because I can’t merge multiple presets (I can only append passes)

#7

You can use this online tool (which has a variety of options for white point correction when using a custom gamut to define white points instead of the white balance tool) to make a Cube format 3DLUT https://cameramanben.github.io/LUTCalc/LUTCalc/index.html and then apply it to a PNG with the Reshade layout in Photoshop or anything else that can load it. The sRGB tone curve is under Linear / γ.

Here’s blank PNG LUTs in 16 and 32. https://i.imgur.com/gBrMjd0.png https://i.imgur.com/U56bWe7.png

Also it’s a strangely common phenomenon to see sRGB classified as having a D50 white point, but it actually displays as D65. D50 is only used when converting between color spaces, I think it’s just more centered in the gamut. Some programs made with the assumption that sRGB is D50 won’t work right with D65, so that’s fun to discover and to compensate for, so keep in mind that everything you use can be plain wrong and keep your suspicion high.

Rec. 709 has the same primaries as sRGB and might not have the illuminant confusion, if you can use that with the sRGB tone curve in various conversion programs it might be safer. But still, keep suspicion high. If it don’t look right, it probably ain’t.

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