Question / Help High quality local recording / aliasing issues

katko

New Member
I know there's a FAQ for this. And I've read as many guides as I can and yet it still doesn't make sense.

Compare the left and right images. Both are from Deus Ex using the same graphical settings.

d6Tw0bG.png


The left is a screenshot using print screen. The right is from a Open Broadcast Software video.

Notice the blurring of the edges, and the artifacting around the van.

I keep upping the video quality, even with CBR, and it the capture always feels "wrong." That last picture is from a bitrate set at 20MB/s.

- Encoder is x264

- VBR looks terrible. It'll never take more than a 1-2 MB/s of bandwidth regardless of quality setting, for 1080p.

- CBR looks way better. (Which is strange because all the guides tell me to use VBR.) VBR was horrific for Jagged Alliance 2.

- I'm running veryfast CPU preset. I've tried slower but I don't recall huge improvements.

- High encoding profile. (Default)

- Uses "CFR", full range, key frame = auto/0. (Defaults)

- No resolution downscaling, running in 1080p.

- GeForce GTX 560 SE + AMD FX 8370 with NO loading problems. Video outputs to an SSD.

I think this would all be fine for a Twitch stream, but I don't want Twitch-mode. I want "FRAPs" mode.

---------------------------------

What should I be doing? Where should I be looking? As far as I can tell, there are no more exotic h264 tweaks exposed in the GUI. (Except trying a higher CPU preset?)

Thanks in advance.
 

Boildown

Active Member
First, not an apples to apples comparison. Do the same image for each.

Second, its probably the same aliasing that appears in-game. With that old GPU, I can't imagine its doing any advanced anti-aliasing.

Third, if it was an encoder problem, the "poor quality" would appear in the form of compression artifacts, not bad aliasing.

Fourth, follow this guide for recording to disk: https://obsproject.com/forum/resources/obs-classic-how-to-make-high-quality-local-recordings.16
 
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