logo

Live Production Software Forums

www.vmix.com

Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
4K into 1080 shots - work flow
Options
Go to last post Go to first unread
Previous Topic Next Topic
jamesgid  
#1 Posted : Wednesday, October 11, 2017 8:50:52 PM(UTC)
jamesgid

Rank: Newbie

Groups: Registered
Joined: 8/14/2017(UTC)
Posts: 6
Location: Wagga Wagga, Australia

Thanks: 1 times
Hi all,

We have 2x Black Magic 4k Micro Studio cameras. We have them through BM 4K Capture Cards, new PC with plenty of grunt.

We want to take a wider shot and chop it up into a few smaller shots. We have this working but want to check our method as we have some grain in the image but I think it is from the camera (need to hook up a HDMI monitor to see for sure, but these cameras are mounted up and out of the way and hard to get to).

We create a new input, select camera input and choose the Resolution of 3840x2160. Our production however is set to 1080p, and we output in 1080p.

We take the input from above and create virtual inputs that we then crop by a factor of 2 (or less), then frame as desired.

Does the above make sense. Is this how you would do it?

Thanks all.
Back to top

Wanna join the discussion?! Login to your vMix Forums forum account, or Register a new forum account.
Back to top  
mjgraves  
#2 Posted : Friday, October 13, 2017 10:44:58 AM(UTC)
mjgraves

Rank: Advanced Member

Groups: Registered
Joined: 7/1/2015(UTC)
Posts: 1,151
Man
United States
Location: Houston TX

Thanks: 319 times
Was thanked: 263 time(s) in 233 post(s)
Your approach seems sensible. It's the very same sort of thing that I've done using 4K & 1080p sources in a 720p project.

Thinking about it just now, it would be really great of there was a zoom option that automatically sets the sources to be zoomed to a 1:1 pixel relationship between the source and the canvas size. That way you could be sure that you're not blowing up the source, losing image quality.
Back to top
WWW BLOG
jamesgid  
#3 Posted : Friday, October 13, 2017 7:50:42 PM(UTC)
jamesgid

Rank: Newbie

Groups: Registered
Joined: 8/14/2017(UTC)
Posts: 6
Location: Wagga Wagga, Australia

Thanks: 1 times
mjgraves wrote:
Your approach seems sensible. It's the very same sort of thing that I've done using 4K & 1080p sources in a 720p project.

Thinking about it just now, it would be really great of there was a zoom option that automatically sets the sources to be zoomed to a 1:1 pixel relationship between the source and the canvas size. That way you could be sure that you're not blowing up the source, losing image quality.


And you are seeing good quality on your cropped sources in the output at 720p?
Back to top
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Privacy Policy | Powered by YAF.NET | YAF.NET © 2003-2024, Yet Another Forum.NET
This page was generated in 0.091 seconds.