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[0:00]
We can use the blur effects inside After Effects
in some really unexpected ways. We can use them
[0:04]
to manipulate shapes to create depth to create
some reactive shadows and even some cool looking
[0:10]
vintage effects let's get stuck in using blur to
create uniform around edges this is perfect if you
[0:15]
want to round the corners of something that you've
animated as a stroke or that is an unusual shape
[0:21]
first we should add the blur effect now any blur
will do gaussian is the safest and easiest Carl
[0:27]
Friedrich Gauss would never lead as astray so
let's add that to our layer and let's blur it
[0:31]
by around 20 pixels which blurs out the shape but
in doing so completely destroys our pointy corners
[0:37]
and now we can do something a little clever by
clamping down on the alpha Channel we can do
[0:41]
that with a few effects but the simplest one is
levels so let's add the levels effect and choose
[0:46]
the alpha Channel now at the moment we have a
nice soft blurred Edge but if we move in these
[0:51]
triangles in this histogram towards the middle it
will clamp or crush or squeeze the alpha channel
[0:58]
so the pixels that are kinda transparent will
become fully transparent and the pixel is kind of
[1:03]
opaque will become fully opaque and once they're
close enough there will be nothing in between it
[1:09]
is good to leave a slight Gap here though because
because if you get too close the edge just becomes
[1:13]
a little too harsh and Jagged and just to just do
crusty to be enjoyable so let's leave a slide Gap
[1:18]
here and that's barely noticeable even at 800 and
now we've got nice round corners and now we can
[1:24]
increase the blurriness to increase the radius and
the roundness of those Corners we might need to
[1:29]
tighten up the levels a bit if we blow it a little
further and we can also just whereabouts on the
[1:33]
histogram these triangles meet in order to expand
the edge or bring it in closer this effect is
[1:39]
also really helpful for shapes like this where we
might want rounded inner Corners now you can use
[1:45]
a rounded cap on its stroke but the insides are
still pointy and even if we play with the inner
[1:51]
roundness of the shape it doesn't give us a nice
consistent look so let's remove that stroke and
[1:57]
paste that blur and levels effect onto the shape
that blur is far too much so let's reduce that
[2:02]
and move these triangles back to the middle and
now we've got consistent straight lines down the
[2:06]
star and a nice rounded end on the inside and the
outside and that roundness will stay consistent if
[2:12]
we scale it up or if we adjust the path in any
way which does come in handy next is using the
[2:19]
same effect stack of blurring levels but this time
applied to an adjustment layer for a quick Blobby
[2:24]
liquid look so let's create a new adjustment layer
on top of everything and let's rename it effects
[2:29]
because we always label our layers and we're going
to paste on those same effects again and now when
[2:34]
our layers get close to one another they kind of
melt together and it's kind of gluey a little bit
[2:39]
slimy but you know a nice slimy this happens
again because without this levels effect the
[2:44]
edges of these shapes have been softened so much
and the levels effect doesn't know or care that
[2:48]
they are separate shapes it will just round the
edges of them both together once they are close
[2:52]
enough that their blurs overlap we can push that
blur really far to get some way more interesting
[2:58]
Blobby results and even when we change the color
of one of the shapes we get this nice gradient
[3:03]
as they're kind of mixing into one another which
can be kind of cool too now we can use a similar
[3:08]
method to achieve a completely different look
but still using the blur to degrade our image
[3:12]
and then trying to salvage it back with another
effect and getting some marvelous artifacts in
[3:18]
the process so let's again create another
adjustment layer add our gaussian blur and
[3:22]
let's start by just blowing it to 5 pixels so it's
just the slightest softness and now we're going to
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add a sharpening effect regular sharpen is fine
unsharp mask if you're feeling fancy and let's
[3:33]
increase that sharpen amount up to 300 until it's
about as clear as it was before the blur and now
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we can see the effect it's creating the sharpen
is essentially undoing the blur creating more
[3:43]
contrast and defined edges where we just remove
them but it's having to work harder and over
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compensate for that blur and we get this kind of
nice sort of halo effect where our edges now have
[3:53]
a dark and a light side and that gets more obvious
the more contrast there is between those colors
[3:57]
and it isn't exactly like but it is reminiscent
of maybe a dodgy CRT screen or just some messed
[4:02]
up footage and you can use this really subtly to
just remove that clean digital Sheen if you're
[4:06]
going for a more gritty style or you can increase
them both to make it really obvious at a certain
[4:10]
point if you increase the sharpen too much it
will kind of break around some of these areas
[4:14]
though or you can approach it really subtly
but then copy and paste those effects and add
[4:18]
the blur and sharpen again and again and again
and again and again and it can also be a really
[4:24]
good compositing technique to unify everything
underneath it with that same depravity in this
[4:29]
project I've got some stock footage and textures
and they just don't quite look cohesive these
[4:34]
astronauts look pretty obviously like 3D models
and they just look a bit out of place with
[4:39]
these textures and that smooth gradient in the
background but adding that blur and sharpen over
[4:44]
the top puts them in a more similar World it gives
them a consistency which just makes it a little
[4:49]
more believable and of course that pairs very
nicely with texture add noise and other effects
[4:55]
to make your work look nice and roughed up so
by reducing the Fidelity of your image you're
[4:59]
covering your tracks and you're getting away with
it because no one could identify you at the scene
[5:04]
we can also create some really neat reactive
Shadows so let's create a new shape layer and
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just start drawing some arbitrary rectangles
around the place that should be plenty and
[5:16]
to this layer we are going to add the effect
CC radial fast blur and if we move the center
[5:22]
around it's blurring our rectangles away from
this point let's increase it to make it more
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obvious and let's set the zoom style from
standard to Brightest there we are that is
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looking nice almost looks like light leaking
through holes in a window which you could
[5:36]
use this effect for as well and if you want a
different color shadow to your shapes we can
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add a fill effect and then add the effect CC
composite back over the top as well now we've
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got some shadows and to attach that Center
Point to another layer all we need to do is
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alt or option click the stopwatch next to Center
and then drag that pick whip up to the position
[5:55]
property of that layer and when we move that
around it looks like it is casting the Shadows
[6:01]
yes hello sorry I'm in the middle of a tutorial
now I'm afraid I can't plug my master motion
[6:06]
design course at the moment yeah yeah despite the
incredible response from the students I have I've
[6:11]
seen the testimonials on bedmarriot.com yes
yes the student collab project did come out
[6:16]
recently it was it was a lot of fun yeah really
great work that was one of my favorites too
[6:22]
all right is that everything okay bye-bye sorry
about that let's get back to the camera lens blur
[6:31]
is the Rolls-Royce of blurs the Andrew Kramer of
blurs it replicates the blur you get from an out
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of focus camera much more than other blurs we
have an absolutely wild cast of settings here
[6:43]
where we can tweak the shape of the bokeh and the
highlights it's more realistic more pleasing just
[6:48]
more satisfying that satisfaction comes with the
price and that's processing power and render time
[6:53]
so keep that in mind if you need to make haste
on a project but the feature in camera lens blur
[6:58]
that I'm excited about is the blow map a blow map
takes some reference footage uses its black and
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white values to adjust which parts of the image
are blurred or not if they're white it is the max
[7:07]
blur in your settings if they're black no blur at
all and the Grays are all somewhere in between now
[7:12]
I'm going to be going through the creation of this
whole animation during an online session at Adobe
[7:17]
Max this year but I do want to show off how I used
a blur map to create this focused effect and make
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it look like all the shapes on the outside
are gradually going out of focus and how you
[7:26]
can create custom blow maps for your animations to
get similar results so starting with the animation
[7:30]
already done we need a blur map so let's duplicate
this tunnel main comp call it tunnel main blow map
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and go inside that duplicate so what we want is
our Center layer to be one color which will make
[7:41]
it white and then the layers beneath it to get
darker and darker and darker until they're black
[7:45]
at the very edge or we could do the opposite with
black in the middle white on the edge as long as
[7:49]
it's black to white it is very easy to invert
later in our effect settings if you do have a
[7:54]
simpler scene you can just grab your layers and
change the fill color of them to between black and
[7:58]
white but because we have so many stacks on top
of one another we can do something a bit clever
[8:03]
to cut down the time so first let's make this top
layer white which we are controlling its color
[8:08]
with the fill effect so it will turn that white we
are going to copy that fill effect with controller
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command C select all of our layers here except for
the background and paste that white fill onto them
[8:17]
so now they are all white and now we're going to
drag down all of their opacity properties really
[8:22]
low down to about four percent and because there's
more of them stacked on top of one another in the
[8:28]
middle that is lighter and they get darker towards
the edge lovely to make that more obvious though
[8:32]
let's change the blending mode to add and to an
adjustment layer on top of all of them let's add
[8:37]
a curves effect to really increase that contrast
so we have full control there that is exactly what
[8:43]
we want we've got a perfect black and white blur
map ready to use so back in our main comp let's
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drag in our blow map and we can actually hide it
it doesn't need to be visible for our camera lens
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blur effect to perceive it but while we're here
let's keep it visible and change its blending mode
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to multiply because now we're getting some really
nice accurate Shadows which only affect the outer
[9:04]
edge layers so let's keep them on and now let's
add to our adjustment layer at the top camera
[9:09]
lens blur let's pump up the blur way up to around
50 so it's very noticeable and from the blur map
[9:14]
let's select our layer tunnel main blur map and
it is blowing the center more because our Center
[9:19]
was white so we can just check invert blow map so
now it is blurring our edges our dark areas of the
[9:25]
blow map and now we've got really nice shallow
depth of field effect going on and we can even
[9:30]
rack focus by changing the blur focal distance
property so we can make the center back out of
[9:35]
focus or make somewhere in between the most out of
focus so once you've finished animating your scene
[9:40]
you can duplicate the comp make everything black
and white depending the depth of your scene and
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then with camera lens blur you've got complete
control troll over what is in Focus now the
[9:50]
compound blur effect also has a blur map feature
but the blur doesn't look quite as good and you
[9:56]
deserve the best so it's okay to treat yourself
every now and again don't be so hard on yourself
[10:02]
sometimes it's nice to step away from it all for
a bit and remind yourself that your value is not
[10:07]
confined to the work you produce your productivity
or whether what you're doing makes sense to anyone
[10:14]
else at all anyway I hope these blur tricks
help you out in some tight spaces or through
[10:19]
some tough projects and I also used a blur map in
a bit of a different way to create this animated
[10:24]
ink bleed so if you want to go deeper you can
check that one out I'll see you in the next one