2018-07-21, 18:56
@toki5,
I've attached the files I was using for black and white clipping. I couldn't get a response from any experts on whether these are accurate at 8-bits with an SDR gamma curve rather than true PQ, but they could provide some benefit. The 8-bit black clipping video is short and requires a lot of patience to adjust. Changes in target nits should produce small changes, while changes in gamma curves will produce large changes. The white clipping video is only useful up to 1,000 nits. Lower targets nits will clip early and higher target nits will clip late. Many values will likely clip the same, so you would still have to adjust by eye. It is unlikely to produce a perfect result with actual content and you might have trouble getting proper black clipping. The eye test is still necessary, and you really need the next build to get the full benefit.
HDR10 Test Patterns - Black & White Clipping
I would go to the DisplayCAL forums and inquire about using HDR -> SDR 3D LUTs in madVR. If you have a meter, that would probably be the best way to get a proper grayscale and brightness.
This is the image I got on a plasma monitor with some black clipping (a sample from Red Sparrow):
Another display looks a little different, but the overall brightness looks accurate.
I've attached the files I was using for black and white clipping. I couldn't get a response from any experts on whether these are accurate at 8-bits with an SDR gamma curve rather than true PQ, but they could provide some benefit. The 8-bit black clipping video is short and requires a lot of patience to adjust. Changes in target nits should produce small changes, while changes in gamma curves will produce large changes. The white clipping video is only useful up to 1,000 nits. Lower targets nits will clip early and higher target nits will clip late. Many values will likely clip the same, so you would still have to adjust by eye. It is unlikely to produce a perfect result with actual content and you might have trouble getting proper black clipping. The eye test is still necessary, and you really need the next build to get the full benefit.
HDR10 Test Patterns - Black & White Clipping
I would go to the DisplayCAL forums and inquire about using HDR -> SDR 3D LUTs in madVR. If you have a meter, that would probably be the best way to get a proper grayscale and brightness.
This is the image I got on a plasma monitor with some black clipping (a sample from Red Sparrow):
Another display looks a little different, but the overall brightness looks accurate.
