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00:00:00
yo what's up everybody it's Kody Piper00:00:01
we're back with another After Effects00:00:03
tutorial today we're gonna be using the00:00:04
content aware fill tool to completely00:00:06
remove someone from our video now I've00:00:09
done a tutorial just like this in the00:00:10
past where I show you what to do when00:00:12
the tool doesn't work you can go ahead00:00:13
and click on the link in the top right00:00:15
corner if you want to check that out but00:00:16
today's video is gonna be even better00:00:18
because I've learned a new method inside00:00:19
of After Effects that gives you much00:00:21
cleaner and more accurate results so I'm00:00:23
really pumped to show you guys this so00:00:24
let's jump right in so I want to give a00:00:26
quick shout-out to one of my subscribers00:00:27
Catherine Parsons we're actually gonna00:00:29
be fixing her footage today she's the00:00:31
director of a documentary film called00:00:32
fire cats and it's a story about the00:00:34
cats who actually survived the wildfires00:00:36
that happen in California I'll leave a00:00:38
link in the description if you want to00:00:39
learn more about that project or share00:00:41
it around or support it if you can so00:00:43
the goal today is going to be removing00:00:45
this person that's walking on the right00:00:46
and replace them with a perfectly clean00:00:48
background so it looks like nothing has00:00:50
changed and so the hardest part about00:00:52
this is that the camera is actually00:00:53
pulling back and as it moves back your00:00:55
perspective is changing so now we're00:00:57
working in 3d space rather than 2d space00:00:59
After Effects handles 2d very well when00:01:02
it comes to content-aware but in 3d00:01:04
space it could definitely warp things00:01:05
and make things look really bad so00:01:08
here's the overview what we're gonna do00:01:10
first is we're to mask out both people00:01:11
so we have a completely clean plate to00:01:13
work with next we're gonna create00:01:15
multiple reference frames that way After00:01:17
Effects has a lot of information to work00:01:19
with third we're gonna generate the00:01:21
content aware fill and because we've00:01:23
given After Effects so many reference00:01:24
frames it should generate a really clean00:01:26
fill layer fourth we're gonna use our00:01:29
original video and composite our person00:01:31
that we want to keep in the frame back00:01:32
over top of our fill layer lastly we'll00:01:35
do any manual Corrections that might be00:01:36
needed00:01:39
so let's get started by creating a mask00:01:41
around the object or person that you're00:01:43
trying to remove set your mask to none00:01:45
so it's easier to see as you're creating00:01:47
it and also press the stopwatch where it00:01:50
says mask path or else it won't record00:01:52
any of the keyframes that you create now00:01:54
go through your entire timeline make00:01:56
sure that the mask is covering this00:01:58
subject throughout the whole thing and00:02:00
only thing you have left is the00:02:01
background that you want to keep all00:02:03
right now that our mask is completed00:02:05
what we're gonna do is start to find the00:02:07
places where we want to add our00:02:08
reference frames so you're basically00:02:10
telling After Effects what actually00:02:12
should be behind the person or object00:02:14
that you're removing so the more00:02:16
reference frames that you give the more00:02:18
accurate your fill layer is gonna come00:02:19
out so the best way I've found to do00:02:21
this is as you create your reference00:02:23
frame that's going to automatically open00:02:25
it up in Photoshop so go back to After00:02:28
Effects move your playhead forward about00:02:30
a second and then you're gonna want to00:02:32
save your frame as a Photoshop file and00:02:35
then go back into After Effects move00:02:38
your playhead back about a second before00:02:40
the reference frame and then save00:02:41
another Photoshop file so once you jump00:02:44
back over to Photoshop so you want to go00:02:46
to finder and locate the extra frames00:02:48
that you rendered out of After Effects00:02:50
and import those into Photoshop so then00:02:53
turn one of those off so you only have00:02:54
one showing and go and set your blend00:02:57
mode which is right above your layers to00:02:59
difference basically it takes the00:03:01
difference between the layers so if00:03:03
there's no difference between the layer00:03:05
at all your screen is gonna be00:03:06
completely black but any places that00:03:08
it's different it's gonna show through00:03:10
to this kind of multiplying look so as00:03:12
that black starts to show or it gets00:03:14
close to black we know that we're00:03:16
getting close to lining up this layer to00:03:18
where it needs to be00:03:19
so as you import each new layer we want00:03:23
to focus on one particular spot so for00:03:25
example right here I'm focusing right to00:03:27
the right of his torso so the process00:03:29
I'm doing is first moving the layer00:03:31
around just using the move tool and so I00:03:34
see the most black start to appear right00:03:36
in that area that I'm focusing on then00:03:38
once I find that I use the transform so00:03:40
we'll just command T I set my anchor00:03:42
point right on the exact spot I'm00:03:44
focusing on to set your anchor point00:03:46
just hold option00:03:47
and click and once you hold option and00:03:49
click they're your anchor port is now00:03:50
gonna be there so you go up to the top00:03:52
and you see where your height and the00:03:54
width are you can use those to transfer00:03:56
your image that's also going to00:03:58
transform using your anchor points00:03:59
location another benefits of doing this00:04:01
is you don't have to zoom all the way00:04:02
out and find the little transform tools00:04:04
that are on the outside of your image00:04:06
you can stay zoomed in and if you click00:04:08
inside the box where it says a height00:04:10
and the width you can just press up and00:04:12
down arrow keys and that will transform00:04:13
your image so you can stay zoomed in and00:04:15
see all the detail as you're00:04:17
transforming your image you'll probably00:04:19
want to uncheck this little chain icon00:04:21
so that you can manipulate the height00:04:23
and the width separately as I transform00:04:25
my image I'm and again I'm just watching00:04:26
for that black until you can start to00:04:28
see even a black line appear in the00:04:31
image as you're moving it and unless you00:04:33
know if you're getting closer or further00:04:34
away so once you've got the most black00:04:36
appearing right on this spot that you're00:04:38
focusing on you know you're good to00:04:40
finish that transform there and start00:04:42
masking it's a hold option and click on00:04:45
the layer mask icon down at the bottom00:04:47
and that's gonna give you an inverted00:04:49
layer mask on to your layer and so now00:04:51
here's the fun part so now you just get00:04:53
to mask that clean empty background00:04:56
layer over top of your layer that you're00:04:58
trying to remove so again you want to do00:05:00
this in segments so whatever spot you00:05:01
focus on like I was focusing here on the00:05:04
right of his torso so now I'm only00:05:06
removing that little part and I'm00:05:08
looking for things in the background00:05:09
like this ladder and this little log and00:05:13
make sure that those line up this is one00:05:15
of those things that you're gonna have00:05:16
to do some trial and error and figure00:05:17
out what works and figure out what looks00:05:19
best but definitely take it in pieces00:05:21
don't do it all at once so once you have00:05:23
one piece done you're gonna duplicate00:05:25
that layer I do the whole process over00:05:27
again as you move to his shoulders as00:05:29
you move to his head and his feet and00:05:31
his shadow now luckily it won't take you00:05:33
as long as that first transform because00:05:36
you're already gonna be pretty close00:05:37
this looks to me a matter of shifting up00:05:38
and down maybe changing the height then00:05:40
with a little bit but each piece needs00:05:42
to have a new layer so the end of this00:05:44
you're gonna end up with five or six00:05:46
layers on average just to remove the one00:05:48
person00:05:49
[Music]00:05:54
all right now that you've completely00:05:56
removed your subject or object the last00:05:59
thing you want to do is group all the00:06:00
layers that you use to remove them and00:06:02
create an inverted layer mask and so00:06:05
basically just hides everything you did00:06:06
and then you want to carefully use your00:06:08
brush to create a really really tight00:06:10
mask around the person that you're00:06:12
removing and so what this does is this00:06:14
gives you only the pixels that you need00:06:16
to remove the person and not anything00:06:19
extra so any of that extra stuff that's00:06:21
not technically the background layer is00:06:23
going to mess up the content-aware fill00:06:24
so it's pretty important to be as00:06:26
accurate as you possibly can on all of00:06:29
your reference frames and just to give00:06:33
you a visual I'll turn off the lair for00:06:35
a second so you can see what we just00:06:37
removed and you'll see the background00:06:39
change ever so slightly you see here at00:06:41
the top out this white piece at the00:06:43
background move down here so then After00:06:46
Effects would think that those two white00:06:48
pieces are true and they should be left00:06:50
in but since we just did that extra mask00:06:52
that cleaned that up so now we just have00:06:55
that one which is what is truly there so00:06:57
After Effects knows okay I need not add00:06:58
anything too and so we're gonna do the00:07:01
same thing to the other person remove00:07:04
them completely add a layer mask just to00:07:06
clean it up and now we're left with a00:07:09
completely clean frame so what we'll do00:07:12
is we'll just command s save that00:07:14
reference frame as the same name that it00:07:17
created in the same location that After00:07:18
Effects created it in and now here's the00:07:21
fun part we'll go back to After Effects00:07:23
and we'll create a new reference frame00:07:26
about every second this took me a long00:07:30
time00:07:32
[Music]00:07:41
okay so we're gonna go back to our00:07:44
original layer we have our mask of both00:07:46
of our people and we're gonna set that00:07:48
mask now to subtract so the content00:07:50
aware fill needs to have the mask set to00:07:54
subtract so it knows what it needs to00:07:56
fill in now that we've got all our00:07:57
reference frames there in the timeline00:07:59
probably wanna go ahead and save it just00:08:01
in case it crashes or something and you00:08:04
can leave all the settings set to the00:08:06
default settings and go ahead and click00:08:08
generate fill layer and so this took00:08:12
about an hour in real life but it's nice00:08:14
to be able to speed it up and just look00:08:15
at it going in seconds all right so now00:08:18
that's finished so let's take a look at00:08:19
how After Effects did giving it tons of00:08:22
reference frames and trying to remove00:08:23
both of these guys so it did a really00:08:26
good job as you can see you can you can00:08:27
barely even tell where they were walking00:08:30
I've seen this clip like a thousand00:08:31
times so I know where they're walking00:08:33
but seeing it for the first time I bet00:08:34
you wouldn't really even know where it00:08:36
is there's one little thing I see with00:08:38
their shadow at one point but it's00:08:40
really not a big deal it's actually00:08:41
really really close to what I wanted it00:08:43
to be alright okay so now our next step00:08:47
is to composite the guy that we want to00:08:49
keep it's the shot so I'm gonna take the00:08:51
mask that I use to mask out both of them00:08:53
and delete half of the keyframes so now00:08:56
those half of the keyframes are not00:08:58
going to show up for the rest of the00:08:59
timeline where the mask is being tracked00:09:01
and so now I'm really just masking the00:09:02
right side of his body so it's gonna00:09:04
save me a lot of time doing it this way00:09:06
so he's messed out for the entire00:09:08
timeline I'm just gonna sit at his mess00:09:10
to be feathered about 15 pixels that00:09:12
will help blend between his mask and00:09:14
filler that we created so let's take a00:09:17
look at that with him composited on00:09:22
all right so this renders actually00:09:24
looking really good no one's gonna00:09:27
noticed a couple little pops and a00:09:28
couple little fade-ins and fade-outs00:09:30
so I'd be good to keep it here I do want00:09:33
to show you how to fix it just in case00:09:35
it's not as clean it's with the renders00:09:36
that I've gotten so let's jump into one00:09:38
manual correction basically I just00:09:41
wanted to fix a little area up at the00:09:43
front and you can see that these little00:09:44
water pipes kind of fade and pop on and00:09:47
the car also starts to fade weird and00:09:49
becomes blurry so what I did was I just00:09:51
took the reference frame that I created00:09:53
right at that same time and I duplicated00:09:56
it and I bring it to bring did brought00:09:59
it to the top of my timeline so when I00:10:02
brought that layer to the top now what00:10:03
I'm gonna do is line it up just like we00:10:05
were doing a Photoshop earlier using the00:10:06
difference and once we line that up what00:10:09
we're gonna do is track the movement of00:10:12
the background layer so track the00:10:14
movement of the actual shot and then00:10:16
take that reference frame and apply that00:10:19
tracking data to the reference frame so00:10:21
that moves along with the image and the00:10:24
exact same way and so the way you create00:10:26
that tracking data is you find your00:10:29
original layer you want to double click00:10:30
so it opens it up as a layer then you go00:10:33
over to the right where it says tracker00:10:34
and if you don't have that window you00:10:36
can go up to the top where it says00:10:37
window and click on tracker and to start00:10:39
your tracking you click on the option00:10:42
that says track motion and then what00:10:43
you're gonna want to do is find a spot00:10:45
in the background that isn't hindered by00:10:48
the people who are walking in front of00:10:49
it and has a good contrast that you'll00:10:51
be able to track so you choose that00:10:53
point move your tracker there and then00:10:55
you use the analyze button is to track00:10:57
forward or track backward and then once00:10:59
you've got all the tracking data you00:11:01
create a null layer in your timeline and00:11:03
apply that data to the null layer00:11:07
[Music]00:11:13
once you've applied it to the null layer00:11:15
you parent your reference frame to the00:11:18
null layer the important thing is you00:11:19
want to make sure that your playhead is00:11:21
at the right position so that your00:11:23
reference frame is perfectly lined up00:11:25
with the background while you parent00:11:27
your reference frame to the no layer and00:11:31
once you've done that your reference00:11:33
frame will move perfectly and tracked00:11:35
with the background layer and then from00:11:37
there it's just a matter of fading in00:11:39
and fading out between multiple00:11:41
reference layers that you add similar to00:11:44
the way we did it in Photoshop so from00:11:46
here it's really up to you how much00:11:48
extra time you want to spend and how00:11:50
well after effects did with generating00:11:52
the fill layer but I added a couple more00:11:54
reference frames just to clean up a00:11:56
couple more things and here's the final00:11:58
result alright guys and that concludes00:12:00
the tutorial for today I hope you guys00:12:02
learned something hope that was really00:12:04
valuable for you I know that reference00:12:05
frame breakthroughs i opening for me and00:12:08
hopefully that was helpful for you guys00:12:09
let me know in the comments below what00:12:10
you thought and don't forget to Like and00:12:12
subscribe all those things really helped00:12:14
me out with my channel so I really00:12:16
appreciate it but yeah thank you guys00:12:17
for checking in thanks for watching and00:12:19
I'll see you next time peace00:12:21
[Music]Description:
Updated 7/1/21 – USE THIS LINK FOR $100 OFF A LIFETIME MUSIC SUBSCRIPTION: https://audiio.com/pricing?oid=1&affid=23 Check out audiio.com for awesome music for your videos/films. In this video, we dive deep into how to get the absolute best results using the Content-Aware Fill tool in After Effects. In my previous video, we only added one reference frame at the beginning of the clip, but you can add as many as you want, and that is the key to getting a really clean fill! Let me know what you guys think and feel free to ask if you have any questions! The Fire Cats: https://www.seedandspark.com/fund/the-fire-cats#story --- www.codypyper.com
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