WEBVTT

00:00:00.160 --> 00:00:07.160
it seems like Hollywood Blockbusters these days are always trying to outdo

00:00:05.359 --> 00:00:12.080
each other to see which film can have the most wildly over-the-top

00:00:09.320 --> 00:00:16.680
multi-million dollar special effects and while this sort of movie Magic can

00:00:14.320 --> 00:00:21.320
require some really complicated postprocessing much of it relies on a

00:00:18.920 --> 00:00:26.960
pretty simple piece of equipment The Humble green screen which allows it to

00:00:24.519 --> 00:00:31.920
appear as though a piece of content was filmed in a completely different

00:00:28.840 --> 00:00:35.879
location be it a Fantastical one or

00:00:31.920 --> 00:00:38.079
totally mundane one but how does it work

00:00:35.879 --> 00:00:43.360
well when you shoot something in front of a green screen such as your favorite

00:00:40.160 --> 00:00:45.640
YouTube host you can tell Whatever video

00:00:43.360 --> 00:00:51.640
editing software you're using to detect a range of colors in this case shades of

00:00:48.800 --> 00:00:56.359
green and replace anything that falls within that range with a transparent

00:00:53.680 --> 00:01:00.920
layer that means you can put anything you want behind it and it will peep

00:00:59.039 --> 00:01:06.080
through and although this is a pretty simple idea green screens have proved to

00:01:03.440 --> 00:01:13.200
be extremely versatile and are widely used to Overlay even extremely complex

00:01:09.560 --> 00:01:15.360
and expensive CGI in high budget films

00:01:13.200 --> 00:01:21.079
now part of the reason for this is how useful the color green is modern digital

00:01:18.960 --> 00:01:25.479
video cameras use things called Bayer filters to capture light these filters

00:01:23.360 --> 00:01:30.400
are designed to be more sensitive to Green Light than to red or blue because

00:01:27.640 --> 00:01:34.720
our own eyes operate the same way way and are most responsive to Green this

00:01:32.600 --> 00:01:39.759
allows the camera to record many shades of green very accurately so that when

00:01:37.360 --> 00:01:44.880
the raw footage is edited on a computer the software can precisely replace only

00:01:42.520 --> 00:01:50.399
green pixels and leave everything else intact green also contrasts very well

00:01:48.240 --> 00:01:55.719
with human skin color unless your name is Bruce Banner making it an ideal

00:01:52.920 --> 00:01:59.960
choice for use in a studio but green screens weren't always the most commonly

00:01:58.079 --> 00:02:04.880
used background for special effects before the Advent of modern digital

00:02:01.680 --> 00:02:07.560
recording blue screens no not that kind

00:02:04.880 --> 00:02:13.120
were actually more popular you see back in the era of the physical film real

00:02:10.720 --> 00:02:17.879
special film that was only sensitive to Blue Light was readily available making

00:02:15.440 --> 00:02:21.599
it easy to produce a negative that came out clear where the blue screen was

00:02:20.160 --> 00:02:25.920
which could then be overlaid with a background to produce a full scene blue

00:02:23.640 --> 00:02:30.360
screens were used extensively in Classic Movies such as the original Star Wars

00:02:27.800 --> 00:02:34.920
Trilogy Where producers filmed miniature models of Starships in front of blue

00:02:32.400 --> 00:02:40.080
backgrounds and they continue to be used today in certain situations such as

00:02:37.239 --> 00:02:44.840
shooting low light scenes so wait a minute lonus are you telling me that all

00:02:41.959 --> 00:02:51.000
I need to create awesome scenes at home is a camera an editing rig and a big

00:02:47.159 --> 00:02:52.879
green or a blue sheet well sort of

00:02:51.000 --> 00:02:56.239
before you whip out the camera and try to give James camera to run for his

00:02:54.480 --> 00:02:59.959
money there are a couple of things to keep in mind if you're shooting with the

00:02:57.680 --> 00:03:03.400
green screen although modern video editing software is very good at

00:03:01.640 --> 00:03:09.400
differentiating Shades of Green from other colors shadows and shiny surfaces

00:03:06.720 --> 00:03:13.680
can absorb or reflect enough green light to throw off your software and make the

00:03:11.480 --> 00:03:18.120
finished product look like a mess for this reason proper lighting is extremely

00:03:16.319 --> 00:03:23.319
important to professionals who make a living off of green screen recordings

00:03:21.239 --> 00:03:26.959
but are YouTubers like me going to be using green screens forever we are

00:03:25.400 --> 00:03:32.159
starting to see cameras that can actually record depth information kind

00:03:29.439 --> 00:03:36.480
of like the connect for Xbox so the future could be very interesting but for

00:03:34.720 --> 00:03:41.560
professional cinematographers instead of casual gamers this technology is very

00:03:39.560 --> 00:03:45.080
very far away from mature so for the foreseeable future you won't be

00:03:43.400 --> 00:03:50.640
expecting to see me wear any green shirts on St Patrick's Day so let's say

00:03:49.080 --> 00:03:54.120
you were watching this video and you're thinking to yourself wow gee that sounds

00:03:52.680 --> 00:03:58.920
really interesting I'd love to get into video creation boom linda.com with the

00:03:57.040 --> 00:04:02.799
linda.com membership you can watch and learn from Top experts who are

00:04:00.599 --> 00:04:08.439
passionate about teaching about all kinds of subjects we're talking

00:04:05.079 --> 00:04:12.360
photography business uh productivity

00:04:08.439 --> 00:04:14.200
software video editing yes you can you

00:04:12.360 --> 00:04:18.079
can stream thousands of video courses on demand and learn on your own schedule

00:04:16.320 --> 00:04:22.560
and at your own pace you can watch on your computer you can download and

00:04:20.079 --> 00:04:26.520
actually watch offline on your Android or iOS phone you can take notes as you

00:04:24.440 --> 00:04:31.160
go you can browse the course transcript to follow along and you know to search

00:04:28.720 --> 00:04:34.360
for answers or skip back and forth and you can create and save playlists of

00:04:33.000 --> 00:04:38.320
courses that you want to watch to customize your learning path and even

00:04:36.120 --> 00:04:41.960
share them with friends colleagues and team members so your linda.com

00:04:40.360 --> 00:04:46.680
membership will give you unlimited access to training on hundreds of topics

00:04:44.360 --> 00:04:50.039
all for a flat rate starting at just 25 bucks a month so whether you're looking

00:04:48.280 --> 00:04:54.000
to become an expert you're coming from nowhere or you're just really passionate

00:04:52.120 --> 00:05:00.639
about your hobby and you want to learn something new visit linda.com tequ and

00:04:57.160 --> 00:05:04.320
sign up for a free 10day all can eat

00:05:00.639 --> 00:05:06.440
trial it's digital you can't eat it but

00:05:04.320 --> 00:05:10.479
you can consume it so thanks for watching guys if you

00:05:08.800 --> 00:05:13.479
liked this video do that thing if you didn't then do the other thing don't

00:05:12.120 --> 00:05:19.000
forget to check out our other channels including Channel superf fun where you can see me eat a bug and other people

00:05:17.199 --> 00:05:22.400
eat bugs and don't worry we do stuff that's not gross sometimes as well as

00:05:21.199 --> 00:05:26.759
always leave a comment on the video if you have suggestions for future fast as posses and don't forget to subscribe and

00:05:25.280 --> 00:05:29.800
follow and all that good stuff see you next time