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Old 25th September 2018, 16:24   #52718  |  Link
Warner306
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Join Date: Dec 2014
Posts: 1,127
Quote:
Originally Posted by j82k View Post
I don't understand why people get the idea that using madVR HDR to SDR even with the service menu tweak would be more risky than passthrough.
Burn-in is caused by content with static parts like game huds or channel logos and as far as I'm aware most people use madVR for movies which don't have any static parts.
The SDR gamma curve makes more of the screen brighter, so the chances of burn-in increase.

I don't totally understand why someone with a display as bright as an OLED would want to use an SDR gamma curve to display HDR content. Projector owners champion this configuration, but it works much better when the display has limited brightness. A PQ curve will do a superior job of separating the various image elements with different amounts of brightness, like it was meant to be presented. A bright sun, for example, will stand out more when presented in PQ than SDR. SDR gamma tends to make large portions of the image brighter or darker. It is also possible to invite banding when the SDR curve is stretched too far, and you will reduce its accuracy without a proper calibration.

An HLG curve is a better example of a curve designed for HDR. It uses an SDR gamma curve for the SDR range and a much steeper logarithmic curve for HDR highlights. This will produce a better HDR effect than an SDR gamma curve alone and reduce the chances of banding.

Last edited by Warner306; 25th September 2018 at 16:26.
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