Rendering images in optimal quality for HDR monitors / TVs ?

[linvanchene]

Media companies like Sony and Samsung are now pushing not just 4k but also HDR capable monitors and TV.

What may be a bit confusing is that they use the term HDR (High Dynamic Range) that is already used in photography and computer graphics.

In photography HDR images were created by adding together photographs captured at different exposures.
In computer graphics a different type of HDR image is used as backgrounds to light the scene.

And now we got some 4K "HDR" monitors and TVs:

http://www.whathifi.com/advice/hdr-tv-w ... you-get-it

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-> How exactly can we produce images that will look "better" on 4k HDR monitors with OctaneRender?


Some sources say in order to see the full effect media for the 4K HDR monitors also needs to be recorded or created with special HDR devices.

Do we need to toggle a switch somewhere in OctaneRender to render out HDR images?

Or are the rendered images already HDR ready and it is just a matter of selecting the proper color space in photoshop?
Instead of AdobeRGB, SRGB now we just select one of the "HDR" profiles?

2016-09-07 (1).png

Does anyone have some advice or links that cover the production side of HDR media?

[Notiusweb]

The Great Linvanchene!

Okay, let me try a whirl at this.
1) To render for better image on 4K, set res @3840 x 2160 to meet the 4K resolution standard.
2) To render for better image on monitor with HDR (High-Dynamic Range), allow brighter and darker texture-material extremes, such that entire said range can be fully exploited by the HDR (ie don't impose a contrast restriction when selecting a mat's colors, brightness, etc....let it run free - no barriers, no boundaries, no limits...No Excuses

[linvanchene]

Thank you for replying.

Based on the overall interest in this topic I am probably a bit early with asking this question.

Many people may stick with their 1080p HD devices for a while.
Some might have upgraded to first generation versions of 4K without HDR.
The hope of the industry may be that the PS4 pro launch might attract some new early adopters for 4K HDR.

[smicha]

As far as I know saving EXR and EXF gives full control for further PS in HDR mode.

PS. I was thinking about getting a new Samsung TV but got dell p4317q finally. What are your impressions on the equality of the TV in therms of using it as a monitor? Don't you find the screen too glossy?

[linvanchene]

2016 11 28 - update / edit: rephrased some paragraphs, again

As far as I know saving EXR and EXF gives full control for further PS in HDR mode.

PS. I was thinking about getting a new Samsung TV but got dell p4317q finally. What are your impressions on the equality of the TV in therms of using it as a monitor? Don't you find the screen too glossy?

@ glossy
If you can work in a room with darkened windows and no other light sources the side effects of glossy surfaces can be reduced.

Make sure to also dim down the tv backlight option as much as you can without affecting calibration.


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@ tv vs monitors

In the past dedicated image editing monitors had much superior options to calibrate and match screens.
Standard tvs still may not give you that much control but the situation has improved.

You can use Spyder pro to calibrate the monitor and to some degree also match the tv to a similar setting as your main editing monitor.

http://spyder.datacolor.com/products/



@ future development

-> At the time of writing it is difficult to predict where exactly HDR is headed.

- It could be that only a limited amount of content is produced for very specific setups

Example: HDR games to be played on PS4 Pro with 10 bit HDR tvs.

- It might also happen that over time most devices will have some form of HDR support.

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I will wait until after CES 2017 to get "a better picture".


-> Currently there are only a small fraction of tvs and monitors available that use a 10 bit color space to display HDR content as intended.

In any case before you buy a new monitor or tv double check what exact type of HDR the device supports.

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