Hi guys this is Jordan with Motion Array!
Today we’re going to be going over a custom
transition that you can make inside of after
effects.
It’s called a zoom blur, and this is what
it looks like.
The idea is that your clips transition as
if your camera is zooming from one location
to new position.
The great part is that this effect can work
for any two clips, but it has a particularly
special impact if you use it between two clips
that look like different coverage of the same
location.
So let’s get started!
The first thing we’re going to do is bring
our clips into a new composition.
We’re going to take our first clip and place
it on top of our second clip.
Find the parts of the clip that you want to
have included in the shot and also the point
at which you would like each clip to switch.
If you’re having trouble seeing your bottom
clip and making adjustments, hit this eye
symbol to disable your top layer and make
changes to the bottom layer.
Position your two clips so that they overlap
at least a few frames at the point you would
like them to switch
Great!
Now, trim your two clips down to what you
would like to have included, and then to keep
everything looking nice and tidy, we’re
going to set in and out points with the b
and n keys and we’re just going to trim
our work area.
Awesome!
At this point this is what you should have.
Nothing special, but we’re about to see
some bigger changes.
The next step is to make an adjustment layer,
go to layers, new adjustment layer.
Make sure that it’s on top of both of your
clips.
Now, go to your effects tab and search for
transform.
Drag it onto the adjustment layer and right
now nothing should change.
What we are oging to do next is use our adjustment
layer to zoom in, this way the motion will
be exactly the same for both the clips underneath
it, helping to sell the effect more.
Go to transform underneath effects, not the
regular transform section for your clip.
Now, keyfram the scale over the course of
a few frames, maybe 3-5, to zoom in a significant
amount.
Finally, over the course of 3-4 frames, keyframe
your opacity of your top clip to drop to zero.
Great.
This is what we have so far,
Now we notice that our second clip follows
the same motion but it’s way too big.
So we’re going to go to the second clips
transform options and change it’s size so
that at the end of the transition, it appears
as the intended size.
Now our transition looks like this.
A lot better.
But we still see that there’s black surrounding
the clip because we shrunk it at the start
of the zoom.
But we can hide this by adding the motion
tile effect.
So go to your effect pannel and choose motion
tile.
Drag it onto your clip and bring your playhead
to the first point at which you can see your
second clip.
Within the motion tile effect increase your
output height and width and you’ll see that
the video clip repeats itself in a tile pattern.
Extend it until it covers the whole frame.
Great, but what can look a lot better is if
you mirror the edges, so click this button
here, and there you go!
Looks a lot better.
So lets take a look at what we have so far.
We’re getting close, but Now this is where
we get into a few setting details that are
essential for this effect to work.
You want to dissellect use shutter clip shutter
angle, and you want to key manually a shutter
angle of 180.
What this does is when we make keframe animations
our clip will react with realistic camera
motion blur.
So if we look at our zoom in, it now looks
like the camera is zooming with things being
blurred out.
This gives a gives a realistic flare to our
motion.
Great!
Now our shot looks like this.
And if you like the way that it looks you
can potentially leave it there, but if you
want to finess the effect a little more then
what you can do is go to your zoom keyframe
and highlight them and go to your graph mode.
Now let’s add an easy ease for both of these
and change the curve of the motion so that
it looks a little more dramatic.
Nice!
And there we go you’ve just created a custom
zoom blur effect that can really add a lot
to the impact of your video!
I hope you found this video helpful!  Thank you so much for watching.
And I hope to see you in the next video!
