Hi Juoruky,

To render HDR with Unreal, you need to set the Frame Buffer Pixel Format setting and set it to Float RGB in Unreal. To do so open the Project Settings and search for Frame Buffer:

Note, in the case of AR Unreal cameras you don't need to do so.

If you are outputting HDR with HDMI using your video card. Then you should make sure that Windows detected it as an HDR monitor and Use HDR is turned on:

We are working on detailed HDR documentation for the Learn pages.

If you are still experiencing this issue, can you make a video of the display's flickering noise? That would help a lot in figuring out what is going wrong.

Warmest regards,

Hello,

You can find the video I recorded here:

HDR off: https://drive.google.com/file/d/19ToscjxooRX8NZWDAxGYqPCWaWvSdxce/view?usp=drive_link

HDR on: https://drive.google.com/file/d/1CG1gGv8wzqd5XnWSMmL0ugLNdkjzwovO/view?usp=drive_link

When I activate the HDR mode, you might notice flickering noise in the image, which isn't present when the mode is turned off. Furthermore, I've ensured that my monitor is in HDR mode.

What perplexes me is that even in HDR mode, the scenes rendered by Unreal Engine don't seem as vibrant. Below, you'll find two images: one captured from Unreal Engine and another from the HDR sample video. The photos were taken directly with a smartphone, and the visual contrast is quite evident to the naked eye. Do I need to adjust some additional settings?

Warmest Regards,

Your Google Drive links doesn’t have access permission set.

You can’t really compare a graded, HDR sample video to something straight out of Unreal. Is your lights and materials in the Unreal scene set to take advantage of a high dynamic range? There doesn’t seem to be any specular highlights or strong emissive lights. If the dynamic range in the scene itself is flat it won’t suddenly appear HDR just because you enable it. 

Have you tweaked the Tonemapper in Aximmetry to take advantage of the HDR dynamic range in your screen? 

Hello TwentyStudios,

I've made some adjustments to the content of the scene in Unreal Engine to make it more vibrant. You can find a sample clip here, which is the closest video to HDR content output from Unreal Engine: https://drive.google.com/file/d/1i_f2iFndbJzHDxVcjEWAtUqzPhLLT88V/view?usp=sharing

Thank you for pointing out the permission issue with the link. Now, my link's content can be accessed properly.

Warmest Regards,

Hi,

We have created a new documentation page on HDR, which provides information about HDR input and output. You can find it here: https://aximmetry.com/learn/virtual-production-workflow/setting-up-inputs-outputs-for-virtual-production/video/hdr-input-and-output/

Warmest regards,