When best means best quality I would rather use Voukoder to render. In Voukoder you can decide if the render should be in AVC or HEVC. Quality is equal, only filesize differ.

When best means speed, I would render with a GPU supported AVC rendertemplate (NV or QSV).

I have Vegas Pro 17. When do "Render as" there is no a 4k video template.

When best means best quality I would rather use Voukoder to render. In Voukoder you can decide if the render should be in AVC or HEVC. Quality is equal, only filesize differ.

When best means speed, I would render with a GPU supported AVC rendertemplate (NV or QSV).

Is it included in Vegas Pro 17 or I need install it?

I have Vegas Pro 17. When do "Render as" there is no a 4k video template.

2160p = 4k

https://www.vegascreativesoftware.info/us/forum/got-questions-consult-the-tutorials-first-please--120282/

I have Vegas Pro 17. When do "Render as" there is no a 4k video template.

2160p = 4k

https://www.vegascreativesoftware.info/us/forum/got-questions-consult-the-tutorials-first-please--120282/

Is 2160p the limit for Vegas Pro 17? 
What is the pixel limit for Vegas Pro 18?

Not the limit but you were asking about 4K. What are you trying to do?

Limit should be 8K from an 8K project.

Not the limit but you were asking about 4K. What are you trying to do?

Limit should be 8K from an 8K project.

I try render videos with high resolution 4K or higher. When I choose render options the maximum was 2160 for Vegas Pro 17. Does Vegas Pro 17 make 8K?

I just tested- yes it does for Magix HEVC. I just completed a 8192x4320 render in VP 17 of a 4K clip.

Here's the resulting Media Info:

Format                         : MPEG-4
Format profile                 : Base Media / Version 2
Codec ID                       : mp42 (isom/mp42)
File size                      : 150 MiB
Duration                       : 25 s 109 ms
Overall bit rate mode          : Variable
Overall bit rate               : 50.1 Mb/s
Encoded date                   : UTC 2021-03-31 02:28:32
Tagged date                    : UTC 2021-03-31 02:28:32

Video
ID                             : 2
Format                         : HEVC
Format/Info                    : High Efficiency Video Coding
Format profile                 : Main 10@L6@Main
Codec ID                       : hvc1
Codec ID/Info                  : High Efficiency Video Coding
Duration                       : 25 s 108 ms
Bit rate                       : 50.0 Mb/s
Width                          : 8 192 pixels
Height                         : 4 320 pixels
Display aspect ratio           : 1.896
Frame rate mode                : Constant
Frame rate                     : 23.976 (24000/1001) FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Bits/(Pixel*Frame)             : 0.059
Stream size                    : 150 MiB (100%)
Language                       : English
Encoded date                   : UTC 2021-03-31 02:29:08
Tagged date                    : UTC 2021-03-31 02:29:08
Codec configuration box        : hvcC

Audio
ID                             : 1
Format                         : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                       : mp4a-40-2
Duration                       : 25 s 109 ms
Bit rate mode                  : Variable
Bit rate                       : 125 kb/s
Maximum bit rate               : 217 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 48.0 kHz
Frame rate                     : 46.875 FPS (1024 SPF)
Compression mode               : Lossy
Stream size                    : 384 KiB (0%)
Language                       : English
Encoded date                   : UTC 2021-03-31 02:28:33
Tagged date                    : UTC 2021-03-31 02:28:33

Welcome to the world of Pixelmania.

I just read about a test by Warner Bros. LG, Amazon and Pixar together with the American Society of Cinematographers (ASC) that people do not see a difference between 4k and 8k on a 8k, 30.000 Euro expensive LG 88Z9-8K-OLED-TV.

For myself, I even don't see a difference between my downscaled 4k to 2k and 4k on my 4k TV, as long as I use Voukoder to render 4k to 2k.

How do you use Voukoder to downscale? With project settings or do you add the (zscale I think it is) filter?

No, I just set my Vegas project settings to 2k (1920x1080) and put my 4k (3840x2160) footage on that timeline. I already did test this for myself dozen times. At normal viewing distance, more than 1.5 meters from my 65" 4k TV , I cannot see a difference between the downscale and the original 4k. Both look brilliant.

Thanks, so just with project settings. That's how I have done it as it's faster, too. Glad you confirmed it looks comparable.

Thanks, so just with project settings. That's how I have done it as it's faster, too. Glad you confirmed it looks comparable.

Yes, but it's very important to use Voukoder for the render. When I do the same with Magix AVC, the output shows a lot of artifacts and is to my opinion worthless/useless. Also most of the time the filesize of the Voukoder renders are significantly smaller than with Magix AVC, but that's mostly depending on how much movement and details there are in the 4k footage.

I understand, I'm talking about using Voukoder- you can set output resolution by either modifying the project settings or applying a filter. I agree the quality and file size is good which is why I use x264 for final renders now and donated (and encourage others to, too!)

I don't have a 4K TV to compare with. Just a smallish 720p set that almost anything looks good enough on when viewed from across the room.

I just tested- yes it does for Magix HEVC. I just completed a 8192x4320 render in VP 17 of a 4K clip.

Here's the resulting Media Info:

Format                         : MPEG-4
Format profile                 : Base Media / Version 2
 

For Magix HEVC I have maximum 2061. VEGAS Pro 17.

@RogerS

I'd suggest using the Spline 36 resizer in Voukoder which is probably more accurate than the native resizer in Vegas. I did a comprison of different resizers for uprezzing awhile back and Vegas did pretty poorly in comparison with other resizers including Spline 36. The best resizer was Lanczos-4 but unfortunately, it is not available in Voukoder although I suspect the developer could easily add it if requested. Granted, the test was for uprezzing and not downscaling, but I suspect the results would be much the same. Here are the results of those comparisons.

@RogerS

I'd suggest using the Spline 36 resizer in Voukoder which is probably more accurate than the native resizer in Vegas. I did a comprison of different resizers for uprezzing awhile back and Vegas did pretty poorly in comparison with other resizers including Spline 36. The best resizer was Lanczos-4 but unfortunately, it is not available in Voukoder although I suspect the developer could easily add it if requested. Granted, the test was for uprezzing and not downscaling, but I suspect the results would be much the same. Here are the results of those comparisons.

 

Thanks so much for sharing these results, I hadn't seen them before!