The color management thread

RetroArch Additions Shaders
#1

@MajorPainTheCactus I didn’t want to clutter up the Megatron thread so I’ve started a new topic.

So how do we emulate a 9300K temp without clipping anything, the way it should be (the way it looks on a PVM)? It seems like there are a lot of steps where things can go wrong. We have the monitor’s calibration (usually pretty inaccurate out of the factory), we have the color profile used by Windows or whatever OS we’re using, and then we have the shader settings. RA is not color managed so it gets no information from the color profile, it will just always be in 6500K.

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#2

With ‘GDV’ you can somewhat lower the first brightness parameter as a measure against clipping. It’s applied before color corrections.

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#3

I was about to add, is this a problem specific to GDV/certain shaders? Because when I just apply the standalone white point shader, there’s no clipping.

What do you mean by “first brightness parameter?” I think I have both set to their “neutral” setting.

9300K showing all the blues:

240pTestSuite-SNES-latest-220416-100649
240pTestSuite-SNES-latest-220416-1006491495×1120 3.94 KB

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#4

It might be that the color correction matrices cause some clipping. Later on the mostly latter brightboost value causes some clipping with default values, but it shouldn’t be this much of an issue if using masks.

There is a brightness setting along with other color tweaks. It’s applied before color correction code.

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#5

Thanks! My understanding of the shader just leveled up.

240pTestSuite-SNES-latest-220416-102246
240pTestSuite-SNES-latest-220416-1022461495×1120 86.7 KB
Super Mario World (U) !-220416-102230
Super Mario World (U) !-220416-1022301495×1120 510 KB

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