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EndlesslyFlowering / ReShade_HDR_shaders

ReShade shaders focused on HDR analysis, (post) processing and (inverse) tone mapping.
GNU General Public License v3.0
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Measured brightness with hdr analysis tool higher than what the TV set can output #26

Closed MelvinSmiley closed 2 months ago

MelvinSmiley commented 2 months ago

I'm sorry if this is a dumb question, but how can it be that the measured brightness in HDR in Cyberpunk 2077 with the HDR analysis tool is 958 nits when my Sony 90XJ 75-inch can only output 753 nits in its 10% peak window according to rtings? Doesn't make sense to me.

MaxG2D commented 2 months ago

What is actually displayed on your screen and what is rendered by the GPU are two completely different things. If the game output more nits that TV can handle, it will either clip if it's in HGiG mode, or TV will try to tonemap it back into correct range if it uses Dynamic Tonemapping (DTM) option.

MelvinSmiley commented 2 months ago

What is actually displayed on your screen and what is rendered by the GPU are two completely different things. If the game output more nits that TV can handle, it will either clip if it's in HGiG mode, or TV will try to tonemap it back into correct range if it uses Dynamic Tonemapping (DTM) option.

This TV doesn't have HGIG, only Gradation/Brightness preferred and Off. I read that the first two should only be used in applications that don't allow you to set max nits so I have it on OFF. But thanks for your explanation, makes a lot of sense.

EndlesslyFlowering commented 2 months ago

What is actually displayed on your screen and what is rendered by the GPU are two completely different things. If the game output more nits that TV can handle, it will either clip if it's in HGiG mode, or TV will try to tonemap it back into correct range if it uses Dynamic Tonemapping (DTM) option.

correct