Magix HEVC codec artifacted render

sirdani wrote on 8/14/2018, 6:51 PM

Hi,

If I try to render in 4K there are artifacts in the video:

https://mega.nz/#!B3whhDZI!T4efjcl6FVoaQ1kSOxt-qvxBTNoNOK3wC6o9riq6FLc

I used the built in HEVC NVENC 4K preset and you can see when the intro ends and camera image appears there is a hard artifact on it.

There is no artifact on FHD or 2K render, only 4K problem.

I have ryzen 1700, 16GB RAM, 1050ti with 4GB vram so everything is optimal for 4K render.

Both Nvidia H264/H265 has this issue on 4K. Of course CPU rendering works, but slow as hell on 4K.

Comments

sirdani wrote on 8/14/2018, 6:55 PM

sirdani wrote on 8/15/2018, 7:31 AM

It is interesting...

When I use the built-in HEVC preset avg: 24mbps max:40mbsp then the final video is artifacted.

When I use avg:24mbs max:24mbps or avg:40mbps max:40mbps or even avg/max:94mbps then the video has no issues.

It looks like encoder can not handle VBR with wide spectrum?

chandan-prakash wrote on 8/26/2018, 4:27 AM

interesting. I have also reported same issue few days back. it is so re-assuring that it's not only me :-) i face this issue when i combine jpegs with my GH5 videos

chandan-prakash wrote on 8/27/2018, 6:07 AM

It is interesting...

When I use the built-in HEVC preset avg: 24mbps max:40mbsp then the final video is artifacted.

When I use avg:24mbs max:24mbps or avg:40mbps max:40mbps or even avg/max:94mbps then the video has no issues.

It looks like encoder can not handle VBR with wide spectrum?

i dont think that is the case. i just now rendered with both Max and Avg value as 50 mbps but still same issue for me.

sirdani wrote on 8/27/2018, 8:55 AM

It is interesting...

When I use the built-in HEVC preset avg: 24mbps max:40mbsp then the final video is artifacted.

When I use avg:24mbs max:24mbps or avg:40mbps max:40mbps or even avg/max:94mbps then the video has no issues.

It looks like encoder can not handle VBR with wide spectrum?

i dont think that is the case. i just now rendered with both Max and Avg value as 50 mbps but still same issue for me.

Please attach sample video file here

j-v wrote on 8/27/2018, 9:20 AM

Better is to present here your Veg that is going wrong with or without its content.
Then we can test this issue also.

vkmast wrote on 8/27/2018, 9:41 AM

https://www.vegascreativesoftware.info/us/forum/upload-veg-files-to-the-forum-please--103247/#ca693122

Available to upload here currently:

j-v wrote on 8/27/2018, 11:03 AM

Presenting here is also sharing a link to a cloud location, but of course it would be better this website has his own possibilities to share projectfiles of its programs.

vkmast wrote on 8/27/2018, 11:14 AM

Yes, currently you need to use cloud options for your Movie Studio Platinum .vf project files as well.

chandan-prakash wrote on 9/7/2018, 4:11 PM

upload option doesnt let me upload .vf file.

Marco. wrote on 9/7/2018, 6:30 PM

Yes, that's what vkmast described before.

sirdani wrote on 9/8/2018, 1:10 AM

You can upload the .vf file to cloud, because here only media files can be uploaded