Realtime Rendering to OBS (NDI)

[havi05]

I want to render animations (and other things) in realtime from Godot to OBS for streaming (some kind of custom alerts). I think the NDI protocol could be used for this and implemented as an addon (maybe official?) because not many people need this for Games.

There is an Q&A from 2020 about this: https://godotengine.org/qa/62202/godot-engine-for-virtual-production

What do you think about this?

[infohub-gather]

Having more support for video input and output and in general various protocols would be very beneficial. It would open up Godot for more and wider professional use cases in broadcast, streaming, presentations, visualisations and other applications (other than gaming)

Since we love open source there is a new protocol called teleport that is being used in OBS : https://github.com/fzwoch/obs-teleport

Especially Godot 4 new impressive rendering capabilities will be great for these new use cases.

[XeroWolf]

I've actually attempted this a couple years ago and got it just working in a very limited form. So I'm here to say it's definitely possible. However with the many updates to Godot and the move to GD Extension I have not been about to get it compiled since then. Take note that I'm not that my C++ knowledge is very limited as I'm a video editor not a programmer lol
I'm willing to take another stab at it in the next couple weeks or so. Even if is to just get a proof of concept working and then have to more experienced coder take it from there.

@infohub-gather Teleport looks promising. I'm definitely going to take a look at it as well. Maybe I'm have better look with it that NDI.

[lostminds]

Another option that's already supported could be just using the transparent window mode, and just have your godot app render in a borderless window with transparent background you put on top of whatever you're streaming on screen, and include it that way. Like this example seems to do https://www.reddit.com/r/godot/comments/1aq5xb3/thought_about_streaming_tekken_8_but/ for an arcade controller overlay.

[Calinou]

Note that borderless windows that are always on top can't be displayed if the other app is in exclusive fullscreen mode.

For OBS streaming, this isn't an issue as you can compose both windows together, but this is something to keep in mind if you're trying to record the entire screen at once (e.g. using a capture card).