Yes, indeedy.

- Tom

Nothing prevents you from getting a vMixCall on green screen in vMix. However you are very unlikely to get good results when doing the chroma keying due to the extreme compression ratio on vMixCalls.

Proper chroma keying requires the least compression and the better subsampling as possible. For example, even for post-production (e.g. not streamed workflow), you always get better results with a 4:2:2 signal than with the same shot recorded in H.264. Best is to use uncompressed shots at 4:4:4 subsampling. Expecting chroma keying to work over a streaming signal is a dream.

If you want remote guests on a virtual background I think the only solution that will give good results is to produce the chroma keying on the remote's end with vMix or another solution and then to use Vmix to vMix Call with the background already integrated.

Guillaume

Thanks everyone. Will test this out and report on results.

Why? Or maybe how is the better question.

vMix call is simply a convenient way to access a remote participant over the internet. Since it's via internet the video is must be massively compressed (1-4 mbps vs >750 mbps for 720p30.) Compression adds artifacts that make further production processes, like chrome keying, less accurate.

Seems simple. Of course, if your requirements are not that demanding you might find the results satisfactory.

After a little reflection, it might be worth an experiment to create some sample video and show the difference.

Some people have lousy chroma keys simply because their local lighting is poor. It strikes me that a remote guest, who is not in the habit of being chroma keyed, would not likely be in a great situation. Marginal lighting, little background/foreground separation, etc.

And worst case he would look like that video guy from the 80's,I forgot his name....

Nothing like actually trying this out, right? Thanks to Tess and Paul of PTZ Optics who had me on their live streaming show on Friday so we had a chance to really try this out.

I am a guest on the show and Paul is bringing in my 1080p video using vMix Call and placing me in his virtual set. How very cool! Best of all, it took maybe 5 minutes to set it all up. And it was his first time using vMix Call. Well done Tess and Paul!



- Tom

@ sinc747

If I am not mistaken Tom, didn't you do something similar with Amnon a while ago using Skype (not sure if it was "Streaming Idiots" or "That VidBlaster Guy")?

@ zenvideo

I'm not familiar with that particular Virtual Set Martin, but I suspect that apparent space is supposed to be the somewhat reflective desktop (an area that Tricaster has excelled at in their Virtual Sets with realtime reflections, which I am sure vMix could accommodate with proper UVMapping in the set).


Ice

Just to add to this old thread, I just had a recording with a remote guest coming in via vMix Call with green screen and I could not find a way to key out the green to any acceptable degree. I tried a few hours also improving lighting/setup on the caller’s end but there always was heavy green spill on the talent no matter what setting I tried.
After almost giving up, I tried Skype and the result was immediate. If the vMix Call gave me a 50% satisfactory result, Skype gave me about 90%, which was, given the imperfect chroma setup, more than enough.
So I do not know, how anybody can get work with vMix Call and chroma? Maybe you need a perfect chroma setup and lighting for good results? In any case, I will use Skype from now on for any chroma requirements.

Too bad, as I really like the vMix Call audio/video routing capabilities as well as being able to get very clean Iso recordings via the Multicorder.
I would wish, that the vMix Team would improve this aspect of vMix Call!.

Martin

For anyone that needs to transmit in very good quality and for the ones that have the up/down speeds you can use medialooks VT. You can use 20 or 50 mbit/s with SRT. That way you get a much better results as with vMixcall through a browser.