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Problem when encoding 8K h.265

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Bentley Ousley
Problem when encoding 8K h.265
on Sep 19, 2017 at 11:45:16 pm

I'm converting an immersive planetarium production to 8K VR and ran into an issue when encoding 8K h.265 with VREncoder (a GUI wrapper made by PurplePill).

I first render the 8192x4096 equirectangular .png image sequence to .avi within AfterEffects. I then use VREncoder with the "High Quality H265" option checked to create an .mp4 file.

The 8K .mp4 output runs smoothly on my setup (Threadripper/GTX 1080 TI/Whirligig/PiMax) but I'm noticing a video artifact that seems to be introduced during the "High Quality H265" render. There is a bit of pixelization on the extreme left side of the equirectangular image. It manifests itself in VR as a seam of pixelization running from the nadir to the zenith at the rear of the VR image:

Do you have any suggestions concerning how I might be able to render this project without introducing this artifact? Any help is greatly appreciated.

Best regards,

-Bentley Ousley

PS Here is some information regarding the production:


The nationally syndicated PBS program "SciTech Now" did a feature story on the project which gives a bit more information:

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