Author Topic: eevBLAB #16 - 4K Render Youtube Experiment  (Read 18687 times)

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Offline apis

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #50 on: October 10, 2015, 12:25:59 am »
I only have a 1080p monitor so I have only been able to watch 2160p at 1080p. Smaller file-size, better quality and 4 times as many pixels is impressive.
You can still choose 2160p in YouTube even if you only have a 1080p screen, but I'm assuming you haven't done that.
I have tried it with the 2160p setting in youtube of course, that's when it stutters. Youtube scales it down to 1080p resolution though, since that's my monitors full screen resolution. I've watched the 2160p version at both 1080p and 2160p setting on youtube and compared both to the native 1080p EEVblog2 version (on my 1080p monitor (in full-screen mode of course)).
« Last Edit: October 10, 2015, 02:36:22 am by apis »
 

Offline apis

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #51 on: October 10, 2015, 12:35:38 am »
If I pause it I can see small differences in quality but as I said before, I think 50/60fps vs 30fps makes a bigger difference: makes video look more sharp and fluid. And personally, since 2160p stutters, I can't use it anyway. But I can definitely manage with 1080p@30 fps as well so it's not a big deal either way. What's most important is that the original recording is in 50fps imho, can't really see much difference between the two videos.
« Last Edit: October 10, 2015, 03:03:09 am by apis »
 

Offline SteveLy

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #52 on: October 10, 2015, 01:45:04 am »
Quote
The 4K version ...
I think some posters are missing the point. You're meant to compare the two vids (EEVBlog and EEVBlog2 versions) at 1080p coming from youtube, not at 4K or at 4K from youtube scaled to a 1080p monitor.
« Last Edit: October 10, 2015, 01:47:26 am by SteveLy »
 

Offline apis

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #53 on: October 10, 2015, 02:58:29 am »
I'm starting to feel confused now :scared: but I've tried both settings and my conclusion is the same either way.
 

Offline 5ky

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #54 on: October 13, 2015, 04:24:53 pm »
Your upsampled 4k looks better on my 4k monitors.  There's more detail in your skin.

That being said, I'm not sure it's worth the extra rendering time and upload bandwidth for the marginal gain in quality.  (did it take much longer to render/upload?)

I assume the problem in sony was smart resample?  I hate that you can't set that to be disabled by default.
 

Offline The Magic Rabbit

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #55 on: October 14, 2015, 11:53:45 pm »
Those claiming more detail and better colour have to be seeing something artificial. The original footage is not 4K. If there are highlights being blown and detail vanishing it has to be in the encoding process.

When I watch upscaled DVD using the upscaling system on my HD TV it looks better than the upscaling system on my cheap DVD player, but the PC upscaling looks even better. The picture is sharpened and various other filtering applied, which obviously isn't there on the DVD. I suspect the same is happening here when the source footage is being upscaled to 4K. That may also be why some people are seeing better results than others - the differences may be in the upscaling or downscaling being performed in software or hardware when viewing, rather than the video itself. Remember that You Tube uses hardware acceleration when available, and the quality of graphics cards and drivers can vary considerably.

Sent from my XT1039 using Tapatalk

 

Offline EEVblog

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #56 on: October 14, 2015, 11:57:52 pm »
I assume the problem in sony was smart resample?  I hate that you can't set that to be disabled by default.

Yes, it's evil.
 

Offline EEVblog

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Re: eevBLAB #16 - 4K Render Youtube Experiment
« Reply #57 on: October 15, 2015, 12:00:02 am »
Edit: attached a 4x zoomed in photo, 2160 on left, 1080 on right, looks like more artefacts on the 1080 to me. In practice, I couldn't tell, and I had to try hard to find an example where I could identify a difference.

Thanks. Does seem to be better, but marginal at best.
 


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