as a video editor. Now in the previous video, I showed you guys how you can do the Ken Burns

effect. And, in today's video, I'm going to be introducing you guys to the UV/Image editor

and we're going to be doing "masking." And we're going to be doing masking specifically

to do a Face Blur. So let's get right to that... So, the first thing that we want to do is...

I've actually imported a small segment of the movie Big Buck Bunny. And, what we're

going to do is... We want to blur out this birds face. And, lets play it back. We can

see how this bird moves. So, I want the mask of a blur effect to move with the bird. So,

how are we going to do that? Well we can do that with the UV/Image editor. So let's stop

this, and we're going to go back to the first frame. And, what we are going to do is...

We're going to go up to this little drop down up here. And we're going to switch this to

a UV/Image Editor. There we go. What we want to do first is we want to switch the UV/Image

editor to the Mask Mode. And we can do that by selecting MASK from this drop down here.

Ok. Now, it gives us an option of New. That means create a new mask. We're going to click

this. New Button. And, by default, it names the new mask, "Mask." But, we're going to

make a blur mask. So I'm just going to call it "blur" - hit enter. There you go. And now

we can actually start creating our mask. Now, you'll notice this little thing, right here.

You can ignore that... In fact, we can actually just click our left mouse button and move

it to the side. What do we need first? Before we create a Mask? Well, we need a reference,

first of all. I mean, I need to see where I'm going to place the mask. So what we're

going to do is we're going to go to "Open" and we're going to select the same video that

we have in our preview window. There we go. And now scroll down a little bit. To get it

to the same size. Or around the same size. Ok so, this side in the UV/Image editor - we're

using this for a reference that we can actually draw our mask over this and go frame by frame

and see how the mask needs to change. So, what we need to do is... Let's first go down

to the "View" menu, and select Properties. And that will open up some properties. And,

we need to click... Let's pull this out a little bit... We need to click the "Match

Movie Length" button and Check "Auto Refresh." And that should be enough for us right now...

Let's actually go back down to view... and we're going to close that... And, now, whenever

you click and drag... It will actually play the video in both the preview window and in

the UV/Image editor. Now, It will not play in the UV/Image editor if you click the play

button. This is just how it is. So let's go back to the first frame, by clicking the little

navigation button down here - to the first frame. Now what do we want to do. We want

to actually start drawing our mask. And the way that you do that is... You hold your Control

button down on your keyboard, and while you're holding your control button down, you left

click to place a marker - right there. So we have our first little marker. And we want

to draw a circle. So we just have to have a group of markers. So we're going to find

another spot where we want to place a marker. And I'm still holding down the CONTROL button

and hitting my left button - we're just going to draw this around the face. I'm just clicking

the left mouse button with my control button down. And you can see that there is a gap

here. And we can zoom in with our mouse wheel. You can leave this gap here. It's actually

nice to leave the gap there because you can actually see where the beginning and ending

is... By default, Blender will automatically connect the beginning and ending markers.

But, if you really want to see the connection, you can go down to the mask menu and click

"toggle cyclic." And it will actually close it. But, I recommend not to do that because

it's nice to know where the beginning and ending are. So, let's undo that... Now, all

we need to do is... we actually have a mask layer now. We just need to go frame by frame

and make some changes to it. And, this is where we're going to need to use this feature

down here called "Auto keyframe insertion". So if you click this "ON" now, what will happen

is, Blender will automatically monitor if there is a change in shape or position of

our mask. And it will actually insert keyframes automatically. And this is not the same kind

of keyframe inserting that we have when we go to our dope sheet or our graph editor because

we can't actually view teh keyframe insertions, that are generated from the auto keyframe

system, in our graph or dope sheet. It's completely handled, 100%, by Blender internally. And,

so what we are going to do is... We have our general shape, and we are on frame 1. And

we're going to go down to our arrow keys on our keyboard. And if you push the actual right

arrow on your keyboard, it will actually take you a single frame at a time. And you can

see over here, it's showing the frame as we go forward and it's also showing the green

line move. Now you can see the frames are changing. And as they change, we need to move

the mask layer. So we can actually select the mask layer by toggling the "A" button

- hit the "A" button once and it deselects, hit it twice and it "selects all." You can

keep toggling it all you want. This is how you select everything and unselect everything.

Now we can hit our "G" button. And we can drag it down and place it somewhere where

it's covering. There we go... And, let's continue moving forward by hitting our arrow keys.

And hit our "G" button and move it down. Arrow key to the right. And, it doesn't have to

be perfect. We're doing a blur effect. It doesn't have to be a perfect coverage. Just

enough to conceal the identity. You can see this is actually... It works pretty quickly.

You can fly through this... I mean once you know that your just select all, G, and moving,

and going forward frame by frame, you kind of fly through it. And I'm going to use my

scroll wheel to scroll down, to zoom out. And we're going to go forward and I'm going

to "G" and move it out of the frame. And now let's go back to the beginning. OK? And let's

zoom in - with our mouse wheel. And let's watch as I drag over this... How this moves.

Cool right? Now it's not perfect, and you can actually go to each frame and you can

actually select an individual marker, and you can hit your "G" button, and you can actually

adjust it. And it will fix it for that frame, and it will make the other frames transition

from that position. So, now you will see... when I move forward, it is actually moving

the shape as well as the whole entire mask object. Ok, So, I showed you guys how you

can make a mask but we want this to be in the video. And this back ground here is really

just a reference. We want to get this mask over here. Onto the preview window. So, the

way that we're going to do that is... We first right click on our video strip - right down

here. Let's go back to the first frame. And let's add an "adjustment layer." Now, when

you add an adjustment layer. If you go over to the properties for that adjustment layer.

Right on the adjustment layer and go to the properties. You can see that it has a length

of 25. This is another way that you guys can actually make the length of the adjustment

layer match the video layer. You can just right click on the video strip, and you can

see that it has a length of 133. So, all we have to do is right click on our adjustment

layer, go over to Length, 1 3 3 - enter. And look at that it actually matched the length

- perfect. Now we are going to go to our adjustment layer, by right clicking on it, and we're

going to scroll down. And we're going to go to "Add Strip Modifier", and we're going to

select "Mask." Now we're going to scroll down and we have 2 buttons, one is STRIP and one

is MASK. We're going to select "MASK." And you see a little icon here, it looks like

a little mask. If you click on that, with your left mouse button, it will present all

of the masks that we have available to blender. And we only made one. It's called "Blur."

So let's click on that... Now you can see... Let's actually scroll over this... And we'll

see... it's selecting a specific area that's going to be viewable. See how it actually

looks in the actual preview window? Now it's not perfect but this will do the job for just

doing a face blur. Let's go back to the first frame... Now we want to blur this, and we

also want to be able to see the rest of the background. So, what we need to do is... We

need to right click on our adjustment layer. We're going to go to the Add menu, and effect

strip, and we're going to select "Gaussian Blur." There we go. Now just like we do with

the video strips and with the image strips, right click on the adjustment layer and we're

going to hit the "H" button - which is the hide button. You can also go down to strip

menu and you could select Mute strips. That's the same thing. And, now, let's select our

Gaussian blur layer with our right mouse button. And let's scroll up. Ok. And, what we are

going to do is... We're going to set the blend setting of our gaussian blur to Alpha Over.

And now you can see the actual total video. But it's not blurred... Why? Because we haven't

set our blur setting. So, make sure that you have the Gaussian blur strip selected. Scroll

down and, right down here, in the effect strip section, we have SIZE X and SIZE Y. And all

you have to do is give an X and a Y value and it will blur it. So, I'm going to blur

it with a 20 X, and hit enter. And you can see how it blurred it. And we'll do 20 Y.

Enter. And this will slow everything down, when you actually preview over it. But, it

will now blur the face. So actually, I'm going to skip ahead some frames. So you can see

that it actually is moving and blurring the face. It's really slow because it has to render

the frame. So, I just click that and that took seconds for that to actually show me

that preview. But you can see, it's actually moving around and it's blurring it. So, all

we need to do now is... we need to go to our properties window, and let's go down here

and click on properties. And we need to set our rendering settings - as we usually do.

And hit the animation button. And when it's finished we'll have a perfect video of this

bird with it's face blurred out. I think that should do it for today. I'll see you guys

in the next video.