[0:00] Today we're going to show you how to go
from this, to this, to this while you're
[0:05] live streaming.... just just look at them
[0:21] So, in order to livestream with a green
screen the first thing you'll need is,
[0:25] well, a green screen background, the
background doesn't actually have to be
[0:29] green, it just needs to be a solid
preferably bright color that's distinct
[0:33] from anything you'll be wearing so you
could even do it with a bright red or
[0:36] blue background you also need a camera
and some kind of video switcher or
[0:40] software that can "chroma key" your
background that's the technical term for
[0:45] removing the color in the background and
replacing it with a different image. Now
[0:49] there's a few different switcher options
for live chroma keying your videos but
[0:52] in today's setup we'll be showing you
how to do it using OBS which is a free
[0:56] software that anyone can download for
Mac or PC if you don't want to use OBS
[1:00] don't worry because you can still do the
same thing using Roland V1-HD, Wirecast,
[1:05] or any of the Blackmagic ATEM switchers
the process for those is very similar to
[1:10] what we'll be doing today so let's get
started by setting up the green-screen
[1:13] and lighting our scene. Today we're using
an elgato green-screen which we love
[1:18] because it's super portable and it takes
no time to setup once your green screen
[1:23] is set up you also need to light your
scene properly just setting up the green
[1:27] screen and putting someone in front of
it won't look so hot when you try to key
[1:30] out the background trust me I tried that
and it did not work the lighting on the
[1:35] green screen has to be consistent in
order for your chroma keyer to properly
[1:39] remove the green color in the background
lighting your scene properly can vary
[1:43] depending on your setup but we found B&H's tutorial to be super helpful
[1:47] while we were learning ourselves you can
check out their video in the description
[1:50] Ok, so once your lighting is right and
your subject is framed up you can head
[1:55] into OBS and add your live feed. In order
to connect our camera to our laptop
[2:00] we're using Blackmagic Design's ultra
studio mini recorder this is a capture
[2:05] card that converts your HDMI or SDI
signal to Thunderbolt and allows your
[2:09] computer to ingest the live feed, now
that we've connected our camera to the
[2:13] laptop we can add our live feed in OBS
by clicking here and selecting video
[2:18] capture device you'll see the Ultra
Studio mini recorder shows up here and
[2:24] if you just wanted to use your laptop's
camera for this you could select that
[2:28] here now we can add a background in, here you have a few options depending on what
[2:33] you're looking to do
you can use a static image, you can use
[2:38] a PowerPoint feed if you're streaming
an online class or tutorial of some sort,
[2:41] or a simple looping video if you just
need to place your subject somewhere
[2:45] else, today we'll just be using a simple
looping video of the first floor of our
[2:50] office which we can do by adding a media
source, selecting the file on our
[2:57] computer, and checking loop
oh and once you've added your background
[3:06] make sure it's layered below your live
video feed. Now for the last part, the
[3:10] chroma key itself, simply right-click
your camera feed and select filter go
[3:16] down to effect filters and select chroma
key once you've created the effect you
[3:20] should see your subject appear without
the background now the default settings
[3:24] do a pretty good job if everything is
lit correctly but you're still gonna
[3:27] have to go in and make adjustments using
these sliders to clean it up this is
[3:32] gonna take a bit of refining to get it
exactly how you want it to look and
[3:35] which settings you adjust
will just depend on your specific
[3:37] lighting and background setup now we
weren't able to get ours to look pixel
[3:42] perfect but with some tweaking it looked
a lot better once you're happy with how
[3:47] everything looks you can adjust the size
of your subject and position them
[3:50] wherever it makes the most sense for
your scene if you're adding a looping
[3:54] video in the background I would highly
recommend a couple of things: 1- that
[3:58] the background you're adding has the
same lighting and white balance
[4:01] conditions as your subject otherwise the
whole picture is going to look weird
[4:05] and 2- that you add a little blur to
your background so there's depth in the
[4:09] image which will help make it look a
little more realistic. So that's how it
[4:13] works! You can check out all the gear we
use today in the description below and
[4:17] if you have any questions about green
screening or anything else
[4:20] live-streaming related you can let me
know in the comments below or reach me
[4:23] anytime at techtips@boxcast.com
Thanks for watching and happy streaming!