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Video tags
Subtitles
Russian
00:00:05
[Music]00:00:07
before we get started in this video i00:00:09
want to point out that the length of the00:00:10
video is not a mistake i set out to00:00:13
explain cc particle systems 2 in cc00:00:15
particle world thinking that it would00:00:16
take me around 30 minutes at the most00:00:18
and here we are with over an hour long00:00:21
video if you don't have that much time00:00:23
to watch all this in one setting that's00:00:25
okay i've actually created a bunch of00:00:27
youtube shorts that explain all the00:00:28
features of ccparticle world in much00:00:30
more bite-sized lengths so you can check00:00:33
that playlist out in the description of00:00:34
this video if you want or you could use00:00:36
the chapters of this video to watch00:00:38
little parts of it at a time i would00:00:40
suggest that you watch it in order00:00:41
though at least for the first time and00:00:43
one last thing this is exactly how i00:00:45
teach my skillshare classes i start00:00:47
recording and it takes as long as it00:00:49
takes to explain what i want to explain00:00:51
i don't like leaving anything out and00:00:53
all these little details i think are00:00:55
important to understand how everything00:00:57
works in after effects so you're00:00:59
basically getting a skillshare class for00:01:01
free in this youtube video and if this00:01:03
video makes you more interested in00:01:05
checking out my skillshare profile you00:01:07
can find it in the description of this00:01:08
video alright let's get into this00:01:10
cc particle systems 2 and cc particle00:01:13
world are both found under the00:01:14
simulation category and these effects00:01:16
are both particle emitters which is an00:01:18
extremely powerful thing for motion00:01:20
graphics both of these effects are made00:01:22
by sitecore effects so a lot of the00:01:24
controls overlap and if you've watched00:01:26
the cc mr mercury video many of the same00:01:28
properties and controls also carry over00:01:31
from it these two effects are just much00:01:33
more advanced and given much more00:01:34
options than cc mr mercury now the main00:01:37
difference between cc particle systems 200:01:39
and cc particle world is that particle00:01:41
systems 2 is a 2d particle emitter and00:01:44
particle world is a 3d particle emitter00:01:46
and not in the sense that the particles00:01:47
are actually 3d but that they work in 3d00:01:50
space not just the x and y axis but also00:01:53
z space and they react to 3d cameras in00:01:56
after effects but we're going to start00:01:58
with cc particle systems 2 and then see00:02:00
how cc particle world is a little bit00:02:02
different i need to start by making a00:02:03
solid so i'm going to go up to layer new00:02:07
solid and i'll name this00:02:09
particles00:02:11
i also want to make sure that's my comp00:02:12
size so it fills the whole thing and00:02:14
click ok then i'll drag out cc particle00:02:17
systems2 onto that layer00:02:19
immediately if i play back we're going00:02:21
to see this explosion of lines each one00:02:24
of these lines is referred to as a00:02:25
particle it almost looks like a sparkler00:02:27
which is pretty cool considering we00:02:29
haven't done anything yet now i'm going00:02:30
to make this a little bit easier to look00:02:32
at by changing the color of my00:02:33
background to black i'm just going to00:02:35
add a fill effect to it00:02:37
and turn it all the way down to black so00:02:39
we can focus on that particle emitter00:02:41
very clearly now let's take a look at00:02:43
the structure and layout of the controls00:02:45
up at the top we have a birth rate which00:02:47
is basically how many particles are00:02:49
being emitted we have longevity measured00:02:51
in seconds so how long each particle00:02:54
lasts on screen before disappearing then00:02:56
we have a producer section which is00:02:58
where the particles are being produced00:03:00
from or emitted from we have physics00:03:03
which is full of controls for how these00:03:04
particles are actually reacting to00:03:07
gravity and other physics we have a00:03:09
particle section which is where we'd00:03:10
style the actual particles that are00:03:12
coming out of the emitter and then we00:03:14
have a random seed which just randomizes00:03:15
the entire simulation now let's walk00:03:17
through each one of these options00:03:18
forgetting about what the actual00:03:20
particles look like in any of the00:03:21
physics anything like that we'll just00:03:23
start with the birth rate if i turn this00:03:25
value way down so like 0.2 or 0.3 then00:03:28
the particles are going to come out at a00:03:30
much slower rate and if i increase that00:03:33
obviously we're going to go in the00:03:34
opposite direction and get a lot more00:03:36
particles but as you'll notice this is00:03:38
rendering very quickly most particle00:03:40
generators are fantastic at producing00:03:42
and rendering thousands if not tens of00:03:44
thousands of particles on screen every00:03:47
single frame i'm gonna change that back00:03:49
down to four just so we're back at our00:03:50
defaults and we'll look at the next00:03:52
option which is longevity if i turn this00:03:54
value down then the particles are just00:03:56
going to last less so if i move it down00:03:59
to 0.1 then it really does look more00:04:01
like a sparkler where it's bright right00:04:03
at the start but it decays very quickly00:04:06
maybe i turn up the birth rate a little00:04:07
bit and that gets to be much more dense00:04:09
or i turn it down and it gets to be00:04:11
nowhere near as dense00:04:13
or i could turn the longevity up way00:04:15
past two seconds and then they're going00:04:16
to last much longer than they're on00:04:18
screen for so they fall off the screen00:04:21
before they ever disappear but if i dial00:04:23
this back again to have a shorter00:04:25
longevity and i pause it right around00:04:27
here you can see that the colors are00:04:28
actually changing it's more of a bright00:04:30
yellow in the center and darker around00:04:32
the outside edges and that has to do00:04:35
with how the particle is styled but00:04:37
we'll get to that in a little bit00:04:39
next up is the producer and this is00:04:41
where the particles are being emitted00:04:43
from so let's open up that section and00:04:45
take a look at the controls it's pretty00:04:47
simple we just have a position point00:04:49
control if i click and drag this value00:04:51
around it moves that producer point00:04:53
around in my comp and i can even click00:04:55
and drag to move that around00:04:57
so now my particles are going to be00:04:58
emitted from the top right corner or the00:05:00
left side wherever i put that producer00:05:03
and i could even keyframe this property00:05:04
so if i set a keyframe here at the start00:05:06
of the animation and i go forward maybe00:05:08
a second and move it down here and then00:05:11
i go forward another second and i move00:05:12
it up here you can see that the00:05:14
particles are actually trailing off00:05:16
because they're being emitted from00:05:18
wherever that producer is at that point00:05:20
in time it's not sticking with that00:05:23
producer it's just being emitted from00:05:25
that producer at that particular point00:05:27
so if i press u to bring up my keyframes00:05:29
and i easy ease this with the f9 key go00:05:31
into my graph editor and then just00:05:33
increase these speed handles a lot so00:05:35
that there's a lot of fast movement00:05:37
right in between the keyframes and00:05:40
gradually gets there then we're going to00:05:42
see a much more dynamic looking particle00:05:44
simulation00:05:47
the other two options we have under the00:05:49
producer are the size for the radius x00:05:51
and radius y so currently it's just 3 by00:05:54
3 so it's pretty much a small little dot00:05:57
but i could increase this radius on the00:05:59
x and y axis and now it's a much bigger00:06:03
producer00:06:04
and maybe i want to turn up the birth00:06:06
rate so i see more particles or i could00:06:08
turn the birth rate down in the00:06:09
longevity up to see them longer and we00:06:12
have this massive spot moving around00:06:13
that's emitting all these particles i00:06:15
could also go all the way down to zero00:06:17
by zero and then it's just going to be00:06:19
an infinitely small dot a specific point00:06:22
emitting all these particles00:06:24
all right next up is the physics and00:06:26
this is where we can control things like00:06:28
how the particles are actually being00:06:29
emitted that's what this animation00:06:31
property is for it's all these different00:06:33
animation types for how the particles00:06:35
are being emitted and it's defaulted to00:06:37
explosive00:06:38
before we explore any of these other00:06:40
options let's just go through the other00:06:42
physics controls first of all we have00:06:44
velocity and this is how quickly the00:06:46
particles are actually being emitted00:06:47
from the producer so if i turn it all00:06:49
the way down to let's say zero then00:06:52
they're not going to be emitted with any00:06:53
velocity they're just going to drop00:06:55
basically and react to physics which as00:06:58
you can see actually creates a pretty00:07:00
cool look especially with a high birth00:07:02
rate if i were to turn this down quite a00:07:04
bit then it's going to get much less00:07:05
solid but keeping that birth rate up00:07:08
makes this very cool solid shape that's00:07:10
very dynamic almost like a tapered00:07:12
stroke and creates a very unique flowing00:07:15
looking simulation almost like sand or a00:07:17
ribbon is being dropped out from that00:07:20
point and using some very basic00:07:22
expressions you could tie this point to00:07:24
a null object so if i go up to layer new00:07:26
null object and i'll call this emitter00:07:29
then i'll copy and paste these keyframes00:07:31
onto that null object00:07:34
and then add a simple expression by00:07:36
alter option clicking on the position00:07:37
property and just using the expression00:07:39
pick whip to select the emitter layer00:07:41
then type dot 2 comp00:07:44
press enter for that auto fill in00:07:46
between these parentheses do an open00:07:48
square bracket 0 0 0. what this will do00:07:51
will map the position of the producer to00:07:54
the emitter null wherever it is00:07:56
regardless if it's parented to something00:07:59
else it will always find where that null00:08:01
object is00:08:02
now when i copied and pasted that00:08:03
position property it actually duplicated00:08:06
ccparticle systems2 and i didn't catch00:08:07
that what i want to do is copy this00:08:09
position property and then open up the00:08:11
position property for that null object00:08:14
select it and paste there now that same00:08:16
movement is transferred to this null00:08:18
object i'll get rid of that cc particle00:08:20
systems effect and then i can actually00:08:22
take the keyframes off of the original00:08:24
particle emitter because they're now00:08:26
following the null object the benefit of00:08:28
doing it this way is this can be00:08:30
parented to any layer but i also now00:08:32
have a motion path that i can modify so00:08:34
if i just switch to my pen tool i can00:08:37
make this much more dynamic rather than00:08:39
just a linear movement the way that00:08:41
point controls are forcing you to00:08:42
animate so if i play this back now it's00:08:45
going to be much more smooth and i can00:08:46
animate that particle emitter just like00:08:48
any other layer all right let's go back00:08:50
to the physics of this emitter and turn00:08:52
the velocity back up in fact let me00:08:54
reset it to the default which is one00:08:57
and with this explosive animation type00:08:59
we already know what that looks like but00:09:01
if i increase this velocity to say five00:09:03
then this is going to be a much more00:09:05
violent explosion and it's going to fill00:09:07
the entire comp so maybe i want to turn00:09:09
the longevity down to dial that back00:09:12
and what's basically happening is my00:09:14
particles are now streaking out longer00:09:17
but disappearing much quicker i could00:09:19
also turn that birth rate down so it's00:09:21
not quite so crazy00:09:24
but this is how you can play with the00:09:26
interaction between the physics and the00:09:28
birth rate00:09:29
let me reset these back down to defaults00:09:33
including the velocity00:09:35
and the next option is inherent velocity00:09:37
and to see this a little bit more00:09:38
clearly i'm going to turn the velocity00:09:40
down a bit now the way that this00:09:42
particle system is moving around is00:09:44
going to be affected by this inherent00:09:45
velocity it's currently set to zero but00:09:48
if i increase this value what's going to00:09:50
happen is the movement of this point00:09:52
control is going to influence the00:09:54
velocity of all the particles so i move00:09:57
this into a positive direction so let's00:09:59
play this back and see what happens00:10:01
you see how those particles now look00:10:02
like they're being thrown around by the00:10:05
producer00:10:06
they're moving in the direction that the00:10:08
producer is moving and i can increase00:10:10
this up to 10000:10:12
and it will be much more influenced by00:10:14
that movement i could even increase that00:10:16
past 10000:10:17
and just have these particles really00:10:19
flailing around and going really crazy00:10:22
every time this point control moves00:10:23
around but what's interesting is i could00:10:25
even put this in a negative direction so00:10:27
if i put this down to say negative 60 or00:10:30
somewhere around there then the00:10:31
particles are going to fly off in the00:10:33
opposite direction almost like they're00:10:35
propelling the point around rather than00:10:37
being thrown around by that producer so00:10:39
if i really crank that back and i turn00:10:41
the longevity down then it almost looks00:10:43
like fire or sparks being flown out of a00:10:45
rocket propelling it around it's a very00:10:47
cool effect and i'm sure by now you can00:10:50
see just why a particle emitter is so00:10:52
powerful with all these controls you can00:10:55
create very cool looking simulations and00:10:57
this is all built right into after00:10:59
effects let's turn that inherent00:11:01
velocity back up to say 4000:11:03
and then turn the gravity down to zero00:11:05
i'll also turn the velocity all the way00:11:07
down to zero so now the only movement00:11:09
from the particles is coming from the00:11:11
motion of that producer and now we're00:11:13
getting this kind of ribbon flowing00:11:15
around sparking out and reacting to the00:11:18
movement it's very organic and very00:11:20
fluid i'll undo to get back to our00:11:22
velocity and gravity settings so we have00:11:24
these sparks flying around basically and00:11:26
the next option is gravity now i've00:11:28
already turned this all the way down but00:11:30
i could increase this to make it look00:11:32
like these particles are much heavier00:11:33
and they fall faster00:11:35
or i could turn the gravity way down00:11:37
maybe not all the way to zero but maybe00:11:39
point two00:11:40
and they're not going to fall quite as00:11:42
fast00:11:43
but because this is a simulation i could00:11:45
even do negative gravity and then00:11:47
they're going to fly upwards and it'll00:11:48
be floating up more like smoke or flames00:11:52
rather than falling down like sparks00:11:54
i'll set that back to its default at one00:11:56
and then the next option is resistance00:11:58
and if i increase this value it's00:12:00
basically going to pull back the00:12:01
velocity of those particles so initially00:12:04
they'll be emitted at whatever velocity00:12:06
we set this to so let's change it up to00:12:08
say two so it's pretty explosive but if00:12:10
i really crank this resistance up you00:12:12
see how it's pulling all those particles00:12:14
back so they're exploding out but then00:12:16
very quickly slowing down they're being00:12:19
influenced by that resistance so that00:12:21
they don't travel nearly as far maybe00:12:23
i'll turn up the longevity a little bit00:12:25
so that we can continue to see those00:12:26
particles fall to the ground but you see00:12:28
that that velocity is really dampened00:12:30
when we increase that resistance i'll00:12:33
set that back down to zero and the next00:12:34
option is direction so i'm going to turn00:12:37
my velocity back down to say 1 and the00:12:39
longevity back down to 0.7 and the00:12:42
direction for this explosive animation00:12:44
at least is basically how it is rotated00:12:47
how that producer point is rotated so if00:12:49
i increased my radius to say00:12:52
3 by 3 or maybe 10 by 10 so we can00:12:55
really see that shape and then i change00:12:58
that direction you can see how it's just00:12:59
rotating it around so you could keyframe00:13:02
this animate it however you want but00:13:04
that is what the direction property is00:13:06
doing next up is extra and if i change00:13:08
this value it is not affecting anything00:13:11
and that's because this value is00:13:12
specific to certain types of animation00:13:15
styles but because there are so many of00:13:17
these we're going to get to that in a00:13:18
little bit first i want to finish off00:13:20
these controls and move on to the00:13:22
particle section like i said before this00:13:25
is where we style the particles and00:13:26
control how they actually look our00:13:28
particles look the way they do right now00:13:30
because of the particle type it's00:13:32
currently set to line but we have lots00:13:34
of options in this menu for how these00:13:37
particles look the next option is star00:13:39
and if i change it to that our particle00:13:41
system looks completely different00:13:43
everything about it that we've set up00:13:45
prior to this still applies but because00:13:48
we changed the particle shape the00:13:50
emitter looks completely different00:13:52
actually i'm going to change my producer00:13:53
back down to say one by one just so we00:13:56
have a point emitting all these00:13:57
particles and you might have noticed00:13:58
that as soon as i switched the particle00:14:00
type we had a couple more controls show00:14:02
up so not all of these controls are00:14:04
available for every type of particle but00:14:06
for star we have birth size and depth00:14:09
size so these are basically the in and00:14:11
out points of every particle and it00:14:14
controls how large the particles are at00:14:16
those points so at the birth at the very00:14:18
start we can see these particles00:14:20
birthing basically being created and00:14:22
emitted from this producer if i turn the00:14:25
birth size down they're going to get00:14:26
much smaller at the start currently i00:14:28
have the longevity set to 0.7 seconds so00:14:31
if i go to around this point here we can00:14:34
see those particles that were initially00:14:36
emitted are fading out and disappearing00:14:39
at that point this is basically the00:14:40
death state of these particles and if i00:14:42
increase the depth size they're going to00:14:44
get much larger before dying or fading00:14:47
out or i could turn that down and keep00:14:49
them much smaller so let's say that i00:14:51
want these to be really tiny little00:14:53
specks more like fairy dust and there we00:14:56
go we've got the particles shooting out00:14:59
maybe i want to mess with the physics00:15:00
increase the resistance a little bit00:15:02
crank up the inherent velocity maybe00:15:04
even turn the velocity all the way down00:15:06
or not quite all the way down and it00:15:08
looks like we have some fairy dust maybe00:15:10
the gravity should be going in the00:15:11
opposite direction so that it's kind of00:15:12
floating upwards but that inherent00:15:14
velocity is still shooting them in00:15:16
whatever direction the emitter is moving00:15:18
all right let's jump back to the00:15:19
particle settings and the next option is00:15:21
size variation so this is basically size00:15:23
randomness it's set to 50 but if i00:15:26
increase this then we're gonna have much00:15:27
more variation in size between each00:15:29
particle or i could turn it all the way00:15:31
down to zero and every single particle00:15:32
will be exactly the same size throughout00:15:35
the whole simulation i'll leave that at00:15:36
its default for now the next property is00:15:39
opacity map and this is what controls00:15:41
how transparent or opaque every particle00:15:44
is it's set to fade out which means it's00:15:46
going to start at whatever we have the00:15:48
next property set to which is max00:15:50
opacity and then gradually fade out to00:15:53
full transparency now i could increase00:15:55
that max opacity so that we have a00:15:56
hundred percent or i could turn that00:15:58
down so it's not quite as visible but00:16:00
nothing will ever be more opaque than00:16:02
this max opacity setting i'll undo back00:16:04
to its default and we'll take a look at00:16:06
the other opacity map options we have00:16:08
fade in which is just going to reverse00:16:10
the opacity so they start transparent00:16:12
and then fade in00:16:13
that's just a different look00:16:15
we have fade in and out so the particles00:16:18
will start transparent and they will end00:16:20
transparent we have constant where there00:16:23
is no fading whatsoever the particles00:16:25
just appear and then they disappear00:16:27
we have fade out sharp which if i get to00:16:30
a frame where we can see that trail just00:16:32
fading off and we change it from fade00:16:34
out to fade out sharp you can see that00:16:36
that's basically just decreasing the00:16:38
decay of that opacity so it fades out00:16:41
much more quickly near the end rather00:16:43
than more gradually on the fade out and00:16:46
the last option is oscillate and this is00:16:48
good for making basically twinkling00:16:50
stars it's oscillating that opacity from00:16:53
fully transparent to fully opaque and00:16:55
it's making all these stars look much00:16:57
more twinkly00:16:58
the next option is source alpha00:17:00
inheritance and this is affected by the00:17:02
layer that we've applied cc particle00:17:03
systems to since i used a solid it is00:17:06
100 opaque there are no transparent00:17:08
pixels whatsoever in it so checking this00:17:11
box on will not do anything but if i00:17:14
turn this effect off for a second and00:17:16
add another effect like venetian blinds00:17:19
and apply that before cc particle00:17:21
systems two i'll set the transition00:17:23
completion up to fifty percent and00:17:25
change the widths to be much wider so00:17:27
now i have these black and white bars00:17:28
basically but if i turn off my00:17:30
background so you can see through to the00:17:33
transparency grid those black bars are00:17:35
actually transparent so let's turn that00:17:38
background back on turn cc particle00:17:40
systems back on and now wherever there00:17:42
are transparent pixels prior to this00:17:44
effect being applied the particles will00:17:47
inherit that transparency it's based on00:17:50
the opacity of the layer so as it00:17:53
crosses right here if i turn the effect00:17:55
off remember white is where there are00:17:57
solid pixels the black is where there00:17:58
are transparent pixels the particles are00:18:01
only going to be visible when that00:18:02
producer is over visible pixels now if i00:18:05
were to do something less drastic and00:18:07
instead of making certain areas00:18:08
completely transparent instead i use00:18:11
maybe a turbulent noise to generate this00:18:14
texture and then maybe an extract effect00:18:18
right after that and make those black00:18:20
areas transparent and soften it out a00:18:22
little bit so now we have00:18:24
semi-transparent pixels as well as00:18:27
opaque pixels i'll just increase the00:18:29
scale of that turbulent noise so it's a00:18:30
little bit more drastic and then turn cc00:18:32
particle systems 2 back on and now those00:18:35
particles transparencies are going to be00:18:37
more or less depending on how00:18:39
transparent the pixels were from the00:18:40
turbulent noise in the extract that we00:18:42
applied before it now be honest i've00:18:44
never really used that property but it00:18:46
is worth knowing that it's there and it00:18:48
does give you a lot of control on how00:18:50
these particles are actually being00:18:51
emitted let's reset some of these00:18:53
settings i'm going to change this back00:18:54
down to fade out reset the birth size00:18:57
and the death size uncheck source alpha00:18:59
inheritance and next we'll look at the00:19:01
color map00:19:02
so this is how these particles are being00:19:04
colored and it's currently set to birth00:19:06
to death meaning we have a birth color00:19:08
and that interpolates into the death00:19:10
color over time so i could change the00:19:12
birth color from yellow to say white and00:19:15
the death color to something more like00:19:17
this tealish cyan color and now we've00:19:20
kind of got a gradient going on from the00:19:22
birth to the death00:19:23
but that's not the only way that we can00:19:25
color these particles we can change this00:19:26
color map to one of three other options00:19:29
so instead of birth to death we could00:19:31
say origin to death and what that means00:19:33
is the origin color of the layer and if00:19:36
you remember before i applied this00:19:37
effect it was a white solid so it00:19:39
actually didn't change anything but if i00:19:41
were to add a fill effect00:19:43
prior to this00:19:45
and it changed it to any other color00:19:48
then it's going to pull that color as00:19:50
the origin color and then interpolate to00:19:52
the death color now if i were to apply00:19:55
this to a more colorful source like this00:19:57
photo right here i'll just copy and00:20:00
paste cc particle systems 2 from that00:20:02
solid to the actual photo00:20:04
then my origin is going to be very00:20:06
different because remember that origin00:20:08
point is wherever the producer is over00:20:11
top of the source layer so it's going to00:20:13
sample the color underneath that point00:20:15
control and apply it to the color of the00:20:18
particles so with origin to death00:20:20
selected if i go to the start of my00:20:21
animation and look at what pixel it's00:20:24
over top of we're in this orangey red00:20:27
section of these smoke plumes so it's00:20:30
going to sample red right there and as00:20:31
it moves across the screen it changes00:20:33
colors yellow green blue and so on now00:20:37
we can change this from origin to depth00:20:39
to say birth to origin and it's00:20:41
basically going to reverse that so the00:20:43
particles will eventually get to00:20:45
whatever color was sampled at their00:20:47
initial emission or we could change that00:20:49
color map to be origin constant where we00:20:52
don't use the birth or death colors at00:20:54
all and it's just going to color those00:20:56
particles based on the sample underneath00:20:59
and this doesn't have to be a static00:21:00
image it could be a video or an animated00:21:02
gradient or anything like that to give00:21:04
very custom color maps to all of your00:21:06
particles alright i'm going to go ahead00:21:08
and delete that layer and bring my solid00:21:10
particles back and turn off that fill00:21:12
and change this back to birth to death00:21:15
the next option we have is the transfer00:21:17
mode and it's set to composite meaning00:21:18
if i solo this layer those particles are00:21:20
just stacked on top of each other00:21:22
there's no blending involved but if i00:21:24
change this transfer mode to say screen00:21:26
then those particles are going to blend00:21:28
into each other and if i change this00:21:29
burst color to be something much more00:21:31
vibrant you can really see how these are00:21:33
now blending into each other just like00:21:35
the blend modes for layers so screen is00:21:37
going to make it look much brighter i00:21:39
could also change this to add to make it00:21:41
even brighter than that and now it looks00:21:43
much more hot it looks like an actual00:21:46
fiery source which could be very useful00:21:48
for making fire so if i make the center00:21:51
of my core this kind of bright yellow00:21:53
color and make the death color a darker00:21:56
red color then we're going to get00:21:58
something that looks a lot more like00:21:59
flames00:22:00
all right now that we looked at all of00:22:02
the particle settings we need to go00:22:03
through the rest of the particle types00:22:05
so far we've only looked at line and00:22:07
star and you can see that those are00:22:09
divided by a little line and we see that00:22:12
in a couple of places this is basically00:22:13
organizing the different types of00:22:15
particles00:22:16
line and star have very similar controls00:22:19
and we can't do much to them the line00:22:21
can't get any longer or thicker and we00:22:24
can't really do anything to the star00:22:25
other than change the size like we can't00:22:27
change the rotation or the shape of that00:22:29
star at all but the next category is00:22:32
full of spheres so the first option is00:22:35
shaded sphere and i'm going to change my00:22:36
transfer mode back to composite just so00:22:39
there's no blending involved and i'll00:22:40
zoom in nice and close here you can see00:22:42
that this looks very bubbly we basically00:22:45
have an opaque sphere that is shaded00:22:47
around the outside so it gets darker00:22:49
around the edges if i play this back you00:22:51
can see how that kind of looks like00:22:52
underwater bubbles00:22:55
but when the emitter's not moving it00:22:57
almost looks a little bit like smoke so00:23:00
if i change that composite mode to say00:23:02
screen then we're going to get rid of00:23:04
that shading basically because it's00:23:06
eliminating the darker pixels and it00:23:08
does look a lot puffier or cloudier00:23:10
and increasing the saturation of that00:23:12
red may be making it a little bit more00:23:14
orange and increasing the saturation of00:23:16
the yellow as well could really make00:23:18
this feel a lot more like flames00:23:22
all right i'm going to change that back00:23:23
to composite and we'll take a look at00:23:24
the next option which is faded sphere00:23:27
this is very similar if i zoom in nice00:23:29
and close again so we can see those00:23:31
particles i'll compare this from faded00:23:33
sphere to shaded sphere they're00:23:35
basically the same but instead of00:23:37
darkening out the outside edges it's00:23:39
fading those edges out and making it00:23:41
much softer and feels a lot more like00:23:44
smoke again changing that to screen or00:23:47
add is going to help those particles00:23:49
blend together a lot more and we could00:23:51
make something that looks a lot more00:23:52
convincingly like smoke if we just00:23:55
change these colors a little bit maybe00:23:56
add just a slight amount of blue in00:23:58
there or maybe yellow00:24:01
just so it's not purely grayscale and if00:24:04
we increased that birth rate and maybe00:24:06
turn up the resistance turn that00:24:08
inherent velocity00:24:10
and dial back the gravity a little bit00:24:12
then it really will start to look a lot00:24:14
more like smoke00:24:17
it might actually be a good idea to turn00:24:18
that resistance all the way down or at00:24:20
least a much lower value we could also00:24:22
increase the birth size to fill in some00:24:24
of those gaps and increase the death00:24:26
size as well and that's starting to look00:24:28
a lot more like an actual plume of smoke00:24:35
all right let me undo back to where we00:24:37
could see the details of that particle00:24:39
and we'll take a look at the next shape00:24:40
which is shaded and faded sphere so this00:24:43
is basically combining the two i'll00:24:45
change this blend mode back to composite00:24:47
you can see the difference between00:24:49
shaded sphere00:24:50
faded sphere and shaded and faded sphere00:24:53
it's basically bringing in some of those00:24:55
dark pixels and will change how the00:24:57
particles blend together especially when00:24:59
you're changing the blend mode00:25:01
next up is bubble and this is kind of00:25:03
the opposite of a shaded sphere where00:25:06
instead of having the center of the00:25:07
particle being opaque and the outside00:25:10
edge is transparent the center is00:25:12
transparent and the outside is opaque so00:25:14
let me turn that birth rate down so we00:25:15
can see those a little bit more clearly00:25:17
and then change this from bubble to00:25:19
shaded sphere so you can see that it's00:25:21
basically the opposite now if we play00:25:23
this back it kind of does look like00:25:25
bubbles are being emitted kind of under00:25:27
water if i turn that inherit velocity00:25:29
down to maybe00:25:31
1000:25:32
and change these colors to look more00:25:34
like they're under water then we can00:25:35
really generate something that looks00:25:37
like it's emitting air bubbles and if i00:25:39
turn back that gravity it'll look like00:25:41
they're floating away even more quickly00:25:43
all right those are all of the sphere00:25:45
types of particles next up are the00:25:48
polygon types so the first one is called00:25:51
motion polygon and if i zoom in here00:25:53
nice and close and play this back you00:25:56
can see that these are basically made up00:25:58
of triangles and i'm going to increase00:26:00
the inherent velocity up to around 6000:26:03
and turn the gravity down to zero as00:26:05
well as the resistance down to zero00:26:08
what's special about these particles is00:26:10
that they change shape and scale based00:26:13
on the motion of the producer so at the00:26:15
beginning where the null isn't moving00:26:17
those particles are very small they're00:26:19
just small triangles but as it moves00:26:21
along and picks up speed not only are00:26:24
they scaling up but they're also00:26:26
pointing in the direction of the00:26:28
velocity so if i turn that inherent00:26:30
velocity to a negative number since00:26:32
those particles are now being emitted in00:26:34
the opposite direction the points are00:26:36
going in the opposite direction so00:26:38
that's why it's called a motion polygon00:26:40
because it follows the motion of the00:26:42
producer and i could also increase the00:26:45
birth and death size and as you'll00:26:46
notice that is a little bit unique to00:26:48
this effect because it's just scaling up00:26:51
the width basically it's not increasing00:26:53
the length at all all right i'll set00:26:55
that back to its default and we'll take00:26:56
a look at the next option which is try00:26:58
polygon or a simpler way to say that is00:27:01
just a triangle i'm going to increase00:27:03
the longevity a little bit so we can see00:27:04
that longer and play this back see that00:27:06
this is just emitting triangles and00:27:08
they're kind of rotating and floating00:27:10
out in kind of a random way now these00:27:13
particles are a little bit unique00:27:14
because we go back up to the physics00:27:16
category and look at the direction this00:27:18
property is actually the speed of00:27:20
rotation for this particular type of00:27:22
particle so if i change this down to00:27:24
zero then the particles aren't going to00:27:26
rotate at all they just scale up and00:27:29
move around based on the velocity and00:27:31
inherent velocity properties00:27:33
but if i change that direction up to one00:27:35
or two or the higher i go they're going00:27:38
to rotate faster and faster i'll set00:27:41
that back down to one and we'll take a00:27:42
look at the next option which is quad00:27:44
polygon another way to say that is00:27:46
square they're squares or diamond shapes00:27:48
instead of triangles and that direction00:27:51
control does the exact same thing it00:27:53
controls how quickly those particles are00:27:55
rotating set it down to zero if you00:27:57
don't want any rotation or increase it00:27:59
if you want them to rotate00:28:01
the next type is cube and this is00:28:03
actually a 3d shaded cube if i zoom in00:28:06
here you can see each individual one of00:28:08
those cubes again rotation is based on00:28:10
that direction property i think you'd00:28:12
have to have a very specific use case to00:28:15
want 3d cubes as your particles but it00:28:17
is cool that we have that option00:28:19
next up is tetrahedron which is00:28:22
basically pyramids 3d triangles i zoom00:28:25
in nice and close we can see those00:28:27
again direction will control the00:28:29
rotation speed and then next up we have00:28:31
textured tri polygon so we're going back00:28:34
to just triangles but we can actually00:28:36
texture these triangles but once again00:28:38
it's based on the source layer that00:28:39
we've applied the effect to just like00:28:42
the origin color00:28:43
so i'm going to bring that photo back00:28:45
out and i will copy and paste that effect00:28:48
one more time to it turn off my solid00:28:50
version and immediately we can see those00:28:52
colors being transferred to our00:28:54
particles now this photo was pretty00:28:56
abstract but if i zoom in here nice and00:28:59
close you actually can see texture on00:29:02
those polygons00:29:04
see how there's a darker spot here and a00:29:05
brighter spot right there this would be00:29:08
even more apparent if i go into my00:29:09
particle and i change the opacity map to00:29:12
say constant and the max opacity to 10000:29:16
the actual texture of the photo is00:29:18
coming through on those particles00:29:20
the next particle type is textured quad00:29:22
polygon which is exactly the same except00:29:25
they're squares instead of triangles all00:29:27
right i'll shut that off and turn our00:29:28
solid version back on and we'll look at00:29:30
the next set of particle types which are00:29:33
lenses so if i change this to lens00:29:35
convex then we're going to basically get00:29:37
flat circles but this is again because00:29:40
of the source that we've applied the00:29:41
effect to since it was just a white00:29:43
solid it appears like they're just flat00:29:45
2d circles but if i turn my photo back00:29:48
on and i change that particle type to00:29:50
lens convex then it is actually00:29:52
manipulating the pixels of whatever is00:29:54
beneath it with the lens convex warping00:29:58
so it's a very interesting look and00:29:59
maybe i want to change the opacity map00:30:01
back to fade out just so it's not so00:30:03
abrupt when they do disappear the next00:30:05
option is lens concave which is going to00:30:08
just change the warping if i back up to00:30:11
a more clear state where we can see00:30:12
those particles and how they're00:30:14
affecting the pixels i'll just change00:30:16
that to lens convex and undo00:30:19
redo so it's just a different distortion00:30:22
next we have lens fade which fades out00:30:24
the edges and uses the lens distortion00:30:27
we have lens darken fade which just00:30:30
makes them a little bit darker as well00:30:32
as lens bubble which is similar to the00:30:34
bubble sphere type but it's applying00:30:36
that lens distortion in addition and00:30:39
sampling the source layer as it does it00:30:42
all right those are all of the particle00:30:43
types the last thing we need to look at00:30:45
is the animation type because this whole00:30:48
time we've only been using the explosive00:30:49
animation but we have lots more options00:30:52
so i'm going to shut off this photo00:30:54
we'll go back to our solid version and00:30:56
i'm going to change that particle type00:30:58
back to line just for simplicity so00:31:01
let's play this animation and see how it00:31:02
looks one more time so when it's static00:31:05
right here at the end remember the00:31:07
explosive type kind of looks like a00:31:08
sparkler but if we change it to the next00:31:11
option which is fractal explosive00:31:13
there's a slight change but the00:31:14
animation overall looks pretty similar00:31:17
the difference is that it's less uniform00:31:20
than explosive and the direction00:31:22
property actually changes this a bit00:31:24
more so if i increase this it's going to00:31:27
change how the fractal influences the00:31:29
explosion whereas with the explosives it00:31:32
basically just rotates the producer so00:31:34
this gives a more uneven look and00:31:36
something that may work a little bit00:31:38
better for fire so if i turn that00:31:40
gravity in a negative direction and we00:31:41
change this to be a fiery color scheme00:31:44
again i'll go to something yellowy and00:31:46
then really nice saturated red and then00:31:49
change our particle type to say shaded00:31:52
sphere and change the transfer mode to00:31:54
add then i'll just increase the birth00:31:56
rate so we have a lot more particles00:31:58
turn down the longevity so they don't00:32:00
last quite as long and maybe mess with00:32:02
those colors a little bit because they00:32:03
are pretty cartoony at this point if i00:32:06
back off the saturation and dial that00:32:08
back just a little bit then we're going00:32:09
to get something that looks a lot more00:32:11
hot00:32:12
maybe don't need quite as many particles00:32:14
turn the inherent velocity all the way00:32:16
down maybe increase the standard uniform00:32:18
velocity and have it last just a little00:32:21
bit longer now we've got something that00:32:22
looks a little bit more like a ball of00:32:24
fire00:32:26
and it has more variation than the00:32:28
explosive animation if i turn that00:32:30
between explosive and fractal and mess00:32:32
with that direction you can see how it's00:32:34
making it more uneven all right the next00:32:36
animation type is twirl and just to make00:32:38
this easier to see i'm going to change00:32:40
the particle type back to line now i00:32:42
have a lot of particles coming out but00:32:44
you can see very clearly that these00:32:46
particles are literally twirling around00:32:49
and the lines are actually bending to00:32:51
that shape to that twirling shape so if00:32:54
i turn down the birth rate so we can see00:32:55
that a little bit more clearly and play00:32:57
this back00:33:00
it's very clear to see that animation00:33:01
type now if i were to turn my gravity00:33:03
all the way down then it's all just00:33:05
going to be twirling around that00:33:06
producer point which almost gives it a00:33:08
kind of swirling galaxy or black hole00:33:11
type of look now with this animation00:33:13
type the direction is controlling the00:33:15
speed of that twirling so if i turn it00:33:17
down to zero we're not going to get any00:33:19
twirl at all and if i back it up to a00:33:21
negative number then it's going to twirl00:33:23
in the opposite direction00:33:24
so that's how you can control the amount00:33:26
of spiraling basically and if i increase00:33:28
this velocity to make it a much larger00:33:30
shape and increase the resistance this00:33:33
is not only going to bring those00:33:35
particles back in but it's going to slow00:33:37
down the rotation the further out from00:33:39
the producer that the particles travel00:33:41
so it's spinning very quickly at the00:33:43
start and slower around the outside the00:33:46
extra property for this particular00:33:48
animation type controls how tight or00:33:50
loose that spiral is so if i go in a00:33:52
negative direction it's really going to00:33:55
crank up how much those particles are00:33:57
twirling around or if i go out into a00:33:59
larger number you see that that00:34:01
straightens out the lines quite a bit00:34:03
all right i'm going to set these back00:34:04
down to their defaults and we'll take a00:34:06
look at the next animation type which is00:34:09
twirly and it is kind of funny that00:34:10
there's only one letter difference00:34:12
between twirl and twirly but they do00:34:13
have different looks instead of being00:34:15
pretty uniform and kind of like a00:34:17
whirlpool the rotation for these00:34:19
particles is much more random it00:34:21
actually looks pretty similar to the00:34:22
explosive type but if i increase this00:34:24
direction number you can see that it00:34:26
actually is twirling around00:34:29
and again that resistance is going to00:34:31
control how much those lines slow down00:34:33
as they move away from the producer00:34:36
and just like twirl the extra value will00:34:38
control how extreme that twirling is a00:34:41
larger number will straighten them out00:34:43
and a lower or even negative number will00:34:45
really pull them around the next option00:34:47
is vortex and this one actually needs00:34:50
some gravity and it's currently set to00:34:51
zero but if i increase this it doesn't00:34:53
actually make the particles fall it00:34:55
spreads them out it increases the size00:34:58
of that vortex so this could be useful00:35:00
for creating something like a tornado00:35:02
again if we change the particle type to00:35:04
be something like the shaded sphere and00:35:06
we change these to be more grayish00:35:08
colors then we're going to get something00:35:10
that looks a lot more like dust or smoke00:35:13
i could increase the birth rate maybe00:35:15
just change that transfer mode to screen00:35:17
so it doesn't look as hot and then i'm00:35:19
gonna add one more keyframe right down00:35:20
here at the bottom of the frame so that00:35:22
we can see this a little more clearly00:35:24
and as our emitter is at rest i'll just00:35:26
set some00:35:28
in and out points for preview range we00:35:30
can see that vortex spinning around so00:35:32
if we go back to the physics velocity is00:35:34
what controls the height of the vortex00:35:36
and the gravity is what controls the00:35:38
width so maybe i want to put that around00:35:40
here and just like the ones before it00:35:41
direction controls the rotation speed so00:35:44
if i turn this to zero we're not going00:35:45
to get any twirling around just these00:35:47
particles being emitted from the base up00:35:51
maybe that's a little bit too bright i'm00:35:52
going to darken that add in a little bit00:35:54
of blue and click ok the extra property00:35:57
does nothing for the vortex but the00:35:59
resistance does bring those particles00:36:01
down so if i increase that velocity and00:36:03
keep that resistance up high then it's00:36:05
going to be a tighter vortex now i do00:36:08
want this to spin around so i'll set my00:36:09
direction to maybe three and let's see00:36:11
what happens if we just change the00:36:12
particle type to say motion polygon and00:36:15
maybe increase the depth size so that00:36:17
they're a little bit wider same thing00:36:19
for the birth size turn that resistance00:36:21
down the velocity down and maybe the00:36:24
gravity up and maybe increase the birth00:36:26
rate to say 30. then let's play this00:36:28
back with the keyframes of the animated00:36:30
null and we've created a pretty reactive00:36:33
looking tornado00:36:35
so that's the vortex animation type next00:36:37
up is fire so why don't we change our00:36:39
colors to something that is a little bit00:36:41
more like fire one more time nice and00:36:43
bright at the core and then fiery red at00:36:46
the death point and using those motion00:36:48
polygons we've already got something00:36:49
that looks like flames this is very cool00:36:51
if you combine this with a couple of00:36:53
blurs maybe a vector blur we can make00:36:55
these particles meld into each other a00:36:57
little bit more and it would feel a00:36:58
little bit more like flames00:37:00
now i have the direction set to three so00:37:02
this is moving very quickly but i can00:37:03
move this down to one and then it won't00:37:05
be so dramatic just like vortex the00:37:08
gravity affects the actual height of00:37:10
these particles how far they travel and00:37:13
the extra value controls the width now00:37:15
this effect would probably benefit from00:37:17
changing the transfer mode to say add00:37:19
and then i'll change the colors a little00:37:21
bit maybe that's a little too yellow in00:37:22
the center so i'll actually just make00:37:24
that really red because with that add00:37:26
blend mode it's going to make the center00:37:28
pure white basically and then let's go00:37:31
ahead and add that vector blur on top00:37:33
turn up the amount increase the angle00:37:36
offset just a slight amount and then00:37:37
maybe add a glow effect on top of all of00:37:40
that increase that glow radius so it's00:37:42
nice and wide turn up the glow threshold00:37:45
a bit and turn the intensity down and00:37:47
very quickly we've created a much more00:37:49
realistic looking flame obviously00:37:51
there's a lot more we could do to this00:37:53
but this is a great starting point okay00:37:55
i'll get rid of that glow and vector00:37:56
blur and we'll take a look at the next00:37:58
section which is direction and direction00:38:00
normalized so let's start with direction00:38:03
and play that back00:38:05
all right so what's happening here is00:38:06
that these particles are being emitted00:38:08
out in a specific direction and then the00:38:11
physics are taking over so let's change00:38:13
the gravity just to one down to its00:38:15
default turn the resistance all the way00:38:17
to default as well as the velocity so00:38:19
this isn't so extreme and we'll just00:38:21
preview again this static point where00:38:23
the emitter isn't moving around00:38:26
and we can change that direction using00:38:28
the direction control so this is just00:38:30
like rotating it around a clock i can00:38:32
customize where those particles are00:38:34
being sent out and the spread of these00:38:36
particles is controlled by the extra00:38:38
value so if i turn this down towards00:38:41
zero then it's going to be a much00:38:42
narrower spout basically let's play this00:38:45
back with the actual animation00:38:49
so because my inherent velocity is00:38:50
turned all the way down it's always00:38:52
going to be emitting out at that angle00:38:54
and i could keyframe this and i can00:38:55
change it to whatever i want if i want00:38:57
it to go straight up then it will always00:38:59
be going straight up if i wanted to be00:39:01
wider i'll just increase that extra00:39:03
direction00:39:04
the difference between this type and00:39:06
direction normalized is that direction00:39:08
normalized is much more uniform in fact00:39:11
every particle is spread out evenly from00:39:13
the emitter whereas direction is much00:39:15
more random you can see how those00:39:17
particles are coming out at different00:39:18
velocities and angles00:39:20
direction normalized is going to shoot00:39:22
everything out consistently based on00:39:24
that extra fan control basically so if i00:39:27
want these to shoot out further i'll00:39:28
just increase the velocity and compare00:39:30
that to direction you see how some of00:39:32
those particles are not getting shot out00:39:34
as much whereas direction normalized is00:39:36
going to shoot every particle out00:39:38
consistently00:39:39
the last option for animation is jet00:39:42
sideways so i'm going to set my00:39:43
direction back down to its default the00:39:45
velocity down to its default and turn00:39:47
the gravity off as well as the extra to00:39:50
its default of one and we'll take a look00:39:52
at this point where no motion is00:39:54
happening on that producer and again00:39:56
just looks like explosive but it's very00:39:58
different if we play it back during the00:40:00
animation what's happening here is that00:40:03
particles are being emitted outwards at00:40:05
a 90 degree angle in either direction in00:40:07
relationship to the motion of the00:40:09
producer so as it moves down those00:40:12
particles are moving left and right and00:40:14
as it's moving to the right the00:40:15
particles get shot up and down but00:40:18
because we've combined this with the00:40:19
motion polygon the particles are not00:40:21
only shooting out further at the faster00:40:23
motion they're also increasing in scale00:40:26
which creates a very cool looking effect00:40:28
if i were to change this to say try00:40:31
polygon we're not going to get the same00:40:32
effect because those polygons are not00:40:34
affected by the motion but motion00:40:36
polygon increases in size and because we00:40:39
have so many of them and they're being00:40:41
blended on top of each other using the00:40:43
add transfer mode we have these fiery00:40:45
colors it creates something very unique00:40:48
and very dynamic and we can shape this a00:40:50
little bit with the extra control this00:40:52
basically introduces more or less00:40:54
randomness so if i turn this all the way00:40:56
down to zero we will have no randomness00:40:59
in the direction and it looks much more00:41:00
uniform if i increase that value then00:41:03
we're going to get a lot more randomness00:41:04
and it won't be quite as directional now00:41:06
my particles are really big here but if00:41:08
i turn these down00:41:10
and maybe increase the birth rate then00:41:12
we'll get something that looks a little00:41:13
bit different00:41:16
but with that we have covered every00:41:18
single animation type and every particle00:41:20
type in cc particle systems 2. and00:41:23
hopefully in that overview you can see00:41:24
just how crazy powerful this is but00:41:27
remember at the beginning of this video00:41:29
i said that cc particle systems 2 hardly00:41:31
ever makes it into my workflow and00:41:33
that's because it is a 2d particle00:41:35
emitter it only works with this 2d point00:41:38
control on the x and y axis and that's00:41:41
where cc particle world comes in so i'm00:41:44
going to jump over to a separate comp00:41:45
here and we're going to again make a new00:41:48
solid layer new solid type in particles00:41:52
click ok00:41:54
and then search for particle world cc00:41:57
particle world drag that out onto the00:41:59
solid and this is laid out almost00:42:01
identically if i bring out cc particle00:42:02
systems two just for comparison the00:42:05
first option is different for cc00:42:06
particle world we have grids and guides00:42:08
but if we ignore that for a second we00:42:10
have birth rate longevity producer00:42:13
physics particle and then finally extras00:42:16
so grids and guides and extras are the00:42:18
only two additions to ccparticle world00:42:21
but if i open up say the particle and00:42:23
take a look at the controls almost00:42:25
everything is identical we do have more00:42:28
controls and we will get to those but00:42:30
basically everything about cc particle00:42:32
systems 2 that we just learned will00:42:34
carry over into ccparticle world so let00:42:37
me turn that off and again we'll get to00:42:39
a black background by adding a fill00:42:43
changing that to black00:42:44
and then let's take a look at ccparticle00:42:46
world00:42:48
again by default this is just a big00:42:49
explosion of particles if i select the00:42:52
effect click and drag at that point00:42:54
control it's going to move it around the00:42:56
screen just like before but we have00:42:58
these guides showing up and it's giving00:43:01
us this kind of floor plane grid so00:43:03
let's start there with the grids and00:43:05
guides option in my own workflow the00:43:08
first thing i always do with cc particle00:43:10
world is disable every single one of00:43:13
these check boxes because i personally00:43:15
do not need any grids or guides to tell00:43:17
me what's going on it's purely a visual00:43:20
aid but i feel like i owe it to you to00:43:22
actually explain what they do so let's00:43:24
start by just turning on the position00:43:25
guide i zoom in nice and close it's this00:43:28
point right in the middle just this tiny00:43:30
little x just a guide telling me where00:43:32
my producer is on screen next is the00:43:35
radius so this is the radius of the00:43:37
emitter if i go into that producer and00:43:39
turn up the radius x and y it makes that00:43:42
guide larger i'll undo that next is the00:43:45
motion path and this only shows up if00:43:47
the producer is actually animated so i'm00:43:49
going to add some keyframes on the x and00:43:51
y properties and you'll notice that00:43:53
these are separated out so we can't link00:43:55
them up the exact same way as we did00:43:57
with cc particle systems 2 to that null00:43:59
object but we'll get to that in a little00:44:01
bit i'll move forward maybe a second in00:44:03
time and then adjust this producer and00:44:06
immediately we can see that motion path00:44:08
which is represented by that green line00:44:11
and if i press u to bring up these00:44:12
keyframes easy ease them and then give00:44:14
them different00:44:16
switch to my value graph and then give00:44:17
them both different easings then we're00:44:19
going to see a curve take shape00:44:22
with that motion path this is purely a00:44:24
guide though i cannot click and drag on00:44:26
it to manipulate it whatsoever we can00:44:29
choose how many frames the motion path00:44:31
is actually displaying so if i want to00:44:33
see less of that motion path i could00:44:34
turn that down to say 10 frames00:44:36
or leave it at its default next is the00:44:39
grid and i've completely disabled it but00:44:40
if i check that on and back this up you00:44:43
can see that the grid is moving around00:44:45
with the producer00:44:47
so the grid position is set to floor but00:44:49
i could change that to producer and it00:44:51
will align it to that producer rather00:44:53
than the floor we'll get to what the00:44:54
floor is in a little bit or i could00:44:56
change this to world and then it will00:44:58
not move around with the emitter now00:45:00
this little icon right here next to the00:45:02
cc particle world title is letting me00:45:04
know that this is a 3d reactive effect00:45:06
meaning i could make a new camera00:45:09
click ok00:45:10
and then rotate my camera around and00:45:12
you'll notice that the effect is00:45:14
actually reacting to it so if i go back00:45:17
to ccparticle world that grid is now00:45:19
displayed at a different angle so let's00:45:21
just add some keyframes on the position00:45:23
of my camera i'll press p to bring up00:45:26
that property and set a keyframe and00:45:27
move forward maybe two seconds and just00:45:30
reposition the camera now if i select cc00:45:32
particle world so i can see that grid00:45:34
and move through my camera animation00:45:37
that grid is moving with it and this is00:45:39
why i always choose cc particle world00:45:41
over cc particle systems 2 because00:45:43
having that z depth and the reaction to00:45:45
actual 3d opens up so many more00:45:48
possibilities moving along we have grid00:45:50
subdivisions which just controls how00:45:51
many squares are in that grid as well as00:45:53
the grid size so i could make that00:45:55
larger if i needed to or scale it down00:45:57
if i don't and finally we have the00:45:59
horizon and axis box guides so the axis00:46:02
box shows up in the top left corner and00:46:04
again is just a guide to show you the00:46:05
orientation of the camera in00:46:07
relationship to the world00:46:09
so if i change this angle down00:46:12
bring up that effect again now we're00:46:14
traveling from above the floor plane to00:46:16
below it you can see the axis box moving00:46:19
with it and at this point you can also00:46:21
see that horizon line now all of these00:46:24
things are great for visual guides they00:46:26
can be useful for things like the radius00:46:28
of the emitter to interactively click00:46:30
and drag within the comp window to00:46:32
change that but it's never been easier00:46:34
for me to do it that way than to00:46:36
actually type in the radius values right00:46:38
here in most cases all these guides just00:46:40
get in the way which is why i00:46:42
immediately start by just unchecking all00:46:44
of them that way i'm left with the final00:46:46
render of just the particles all right00:46:49
i'm gonna get rid of my camera move and00:46:50
let's talk about how to link up the00:46:52
producer to a null object the same way00:46:54
that we did in cc particle systems 200:46:56
except this time we'll be using a 3d00:46:58
null object so i'll start by just00:47:00
copying and pasting that emitter null00:47:02
from the other comp into this comp and00:47:04
then turn on the 3d layer switch so it's00:47:07
still only animating on the x and y axis00:47:09
but i have the option to now add in some00:47:11
z position values i'm going to get rid00:47:13
of the keyframes that i have on the x00:47:15
and y position for the particle emitter00:47:17
now this process of linking the producer00:47:19
to the null object is much more00:47:20
complicated and it's simply because this00:47:23
effect is not using the same positioning00:47:25
system that after effects is for 3d00:47:27
space this emitter's position exists in00:47:30
3d space in relationship to the world00:47:32
space of after effects so if i set this00:47:35
to 960x540 it's right in the center of00:47:37
the comp because the origin of my comp00:47:39
is in the top left corner this is a00:47:41
position value of zero comma zero comma00:47:43
zero if i go 960 pixels right or00:47:47
positively from that point then i get to00:47:49
the center of the x-axis and if i go 54000:47:52
pixels positively down then i get to the00:47:54
center vertical point of my camera's00:47:56
view cc particle world normalizes that00:47:59
value so that the center of the world is00:48:02
a value of 0 0 on the x and y axis so we00:48:06
basically have to convert this position00:48:08
value from after effects to the00:48:11
positioning value of ccparticle world00:48:14
and while it is a little bit of00:48:15
expressions work you can just copy and00:48:17
paste the expressions from the00:48:19
description of this video if you want00:48:21
but i'm going to walk you through00:48:22
exactly what's happening let's start00:48:23
with position x and add in an expression00:48:25
by alter option clicking on that00:48:27
property and the first thing i'm going00:48:28
to do is use the expression pick whip to00:48:30
select the x position value of my00:48:33
emitter null so that fills in the code00:48:35
that i need to reference that property00:48:37
but it is a little bit long and hard to00:48:39
read so i'm going to simplify it by00:48:40
turning it into a variable by typing var00:48:43
at the beginning and naming this00:48:45
variable we'll just call it p for00:48:47
position and then put an equal sign00:48:50
between that p and the actual line of00:48:52
code now remember the origin of the comp00:48:55
is the top left corner but the origin of00:48:57
the effect is right in the center so00:48:59
that's half of the comp's width and00:49:02
that's actually how this position system00:49:04
is measuring the width of the comp is00:49:06
normalized to a value of 1. so instead00:49:09
of this comp being 1920 pixels wide cc00:49:12
particle world is saying the width is00:49:14
equal to a value of 1. 0.5 in this00:49:16
direction negative 0.5 in this direction00:49:19
so what i need to do is subtract half of00:49:22
the width of the comp00:49:23
which is the distance between the edge00:49:25
of the comp and where the producer00:49:27
actually is00:49:28
from this x position00:49:30
and to do that i'm just going to add in00:49:32
minus00:49:33
this comp with a capital c00:49:36
dot00:49:37
width00:49:38
divided by two00:49:41
so we're taking the comps width and00:49:42
dividing it by 2 giving us a value equal00:49:45
to half the width of the comp and00:49:47
subtracting that value from the position00:49:49
property00:49:50
i'll finish all that off with a00:49:52
semicolon and i've defined that all as a00:49:55
variable so now i can drop down a couple00:49:57
lines and actually write my expression00:50:00
and i'll start by calling that variable00:50:02
just by typing the letter p00:50:04
and now after effects is going to00:50:06
interpret that p as all of this code00:50:08
that we just typed up here and i want to00:50:10
take that value and divide it by this00:50:14
comp again with a capital c dot width so00:50:18
we're again dividing everything by the00:50:20
comps width00:50:21
and the reason we're doing this is00:50:23
remember because we're basically taking00:50:25
that 1920 comp width value00:50:29
and converting it to a value of 1 in cc00:50:32
particle world so if we divide this00:50:34
value which is calculated right here00:50:37
by the comps width of 1920 we're00:50:40
essentially converting the units of this00:50:42
position data to the units of the cc00:50:44
particle world position data so if i00:50:46
click off and now scrub through00:50:50
the emitter's x position is going to00:50:52
move around with that null object no00:50:54
matter where it goes but we still have00:50:56
the y and z to deal with so all i need00:50:59
to do is copy this expression go into00:51:02
the y position and add an expression00:51:04
there00:51:05
paste it in00:51:06
and then modify it just slightly we need00:51:09
to go into this variable and instead of00:51:10
targeting the first value of the00:51:13
position array which is the x position00:51:15
we need to increase this value by 1 so00:51:17
that we're targeting the next position00:51:19
value in that array which is y the00:51:21
y-axis00:51:23
we also need to change this little bit00:51:24
of the expression where we're00:51:26
subtracting the comp's width and instead00:51:28
subtract the comp's height and divide it00:51:30
by 2.00:51:31
everything else can stay the same if i00:51:33
click off now that y position is going00:51:36
to be linked to the y position of the00:51:38
emitter null now even though i don't00:51:40
have any z position animated yet if i00:51:43
added some in right here the actual00:51:45
emitter is not going to be linked to it00:51:47
anymore so obviously we need to add that00:51:49
in and i'll double click on the position00:51:51
z property to bring that up00:51:53
and then add another expression alter00:51:55
option click on that z paste in what we00:51:57
already had00:51:58
scale this up a little bit so i can see00:52:00
it more and change this to a value of00:52:03
two so we're not targeting zero which is00:52:05
the x or one which is the y but two00:52:08
which is the z position of our null00:52:10
object and we can actually take off the00:52:13
rest of that expression because both00:52:15
after effects and cc particle world use00:52:17
the same origin point for the z-axis00:52:20
a value of zero on each is identical so00:52:23
i don't have to subtract anything from00:52:25
that value but we do still have to00:52:27
divide it by this comp's width because00:52:29
that is what determines the scale and00:52:31
change of units between the position of00:52:34
after effects and the position of this00:52:35
effect i'll click off and that emitter00:52:38
immediately snaps to the position of my00:52:40
null and i can play this back and the00:52:42
emitter will be with that null no matter00:52:44
what00:52:45
now that was a lot of work trying to00:52:47
explain something pretty complicated i00:52:48
hope i didn't lose you but like i said00:52:51
you don't really have to remember any of00:52:52
that you can just save the expression or00:52:54
come back to this video and copy and00:52:56
paste it from the description but now00:52:58
that this is all linked up we can00:52:59
actually look at the rest of these00:53:01
controls so let me collapse my grids and00:53:03
guides and move on to the other settings00:53:05
so we have the radius x radius y00:53:09
and addition of radius z so that's the00:53:11
only difference between this and00:53:12
particle systems too i'm going to drop00:53:15
all this down to 0.2 so it's a much00:53:17
smaller producer i also want to turn off00:53:20
all of those guides sometimes it seems00:53:21
like those just pop on randomly so i'll00:53:23
just be turning them off as they come up00:53:25
that's it for the producer category00:53:27
let's move on to physics this is nearly00:53:29
identical to cc particle systems 2. we00:53:32
have all the same animation types so i00:53:34
could change this to jet sideways and00:53:36
we're going to get particles shooting00:53:37
out based on the motion but it's also00:53:39
going to work on the z-axis so if i pull00:53:41
this one out and i maybe shoot this one00:53:43
back00:53:44
it all works in 3d space and i could00:53:47
even have a camera flying around this if00:53:48
i wanted to but we have all the same00:53:50
physics controls velocity inherent00:53:52
velocity gravity resistance extra and in00:53:55
addition of extra angle and this is an00:53:58
added control because of the third axis00:54:00
that we have access to now and that00:54:02
third axis actually gives us some extra00:54:04
animation controls too so we have00:54:06
direction axis as opposed to just00:54:09
direction in cc particle systems 2. so00:54:12
this extra angle control allows us to00:54:15
rotate that direction in 3d rather than00:54:18
just around in 2d like on a clock face00:54:21
the extra property again controls the00:54:23
spread of those particles00:54:26
but extra angle actually rotates that00:54:28
around00:54:29
now we also have cone axis which is00:54:31
going to spit these particles out in00:54:33
more of a cone shape again turning down00:54:35
the extra is going to narrow that cone00:54:38
and the extra angle controls the fan of00:54:41
that cone and if i were to turn my00:54:42
gravity down to zero it would make it00:54:44
more apparent what exactly is happening00:54:46
so let me go to a point where the00:54:47
emitter's not moving around and adjust00:54:49
the extra angle so you can see how it's00:54:51
kind of fanning it straight outwards at00:54:54
a value of around 270 degrees if i00:54:56
increase it further it's going to fan it00:54:58
upwards and bring it narrower and00:54:59
narrower or towards zero it's going to00:55:02
narrow downwards00:55:04
let's take a look at the other animation00:55:05
controls that are a little bit different00:55:07
like viscous00:55:09
and according to the actual user guide00:55:11
this animation type is actually obsolete00:55:13
it's only there to be supported by00:55:15
previous versions so you really don't00:55:17
need to use that one it's very similar00:55:19
to explosive but has less controls there00:55:21
are two more options down at the bottom00:55:23
that are unique to cc particle world00:55:25
fractal omni and fractal uni so let's00:55:27
start with fractal omni and again this00:55:30
looks very similar to just the standard00:55:32
explosive but it is again less uniform00:55:35
than explosive just like in cc particle00:55:38
systems 2 with the fractal explosive00:55:41
animation type00:55:42
the extra value will adjust that fractal00:55:45
but as you can see it's actually 3d00:55:47
fractals it's changing the velocity of00:55:50
all those particles using fractal noise00:55:53
and the extra angle just changes the00:55:56
shape of that fractal now fractal uni00:55:59
puts out these particles more uniformly00:56:01
instead of going in every direction00:56:03
they're going out in one direction00:56:05
so if you were trying to make an00:56:06
explosion that was coming out of a00:56:08
single point then we could use this type00:56:10
and just keyframe the birth rate so if i00:56:12
set this to a value of 0 and set a00:56:14
keyframe and then go forward a frame and00:56:17
set it to a value of maybe 10 and then00:56:19
go forward two or three frames and set00:56:21
it back down to zero then we're just00:56:23
gonna get this burst of sparks00:56:27
and you play around the physics to make00:56:29
this look however you want00:56:30
all right let me undo back before i00:56:32
added those keyframes and then take a00:56:34
look at these next three options there's00:56:36
floor direction axis and gravity vector00:56:39
now i'm actually going to skip over00:56:40
floor for a second and go straight to00:56:42
direction axis because it directly00:56:43
applies to this animation type now once00:56:46
again this guide has popped up and it is00:56:48
interactive if i click and drag it i can00:56:50
rotate it around within the comp and you00:56:53
can see what's happening it's basically00:56:55
showing me what direction00:56:57
this fractal uni emitter is facing00:57:00
so if you want to rotate it around that00:57:02
way that's fine otherwise you can use00:57:05
these sliders right down here but using00:57:07
these controls you can specifically00:57:09
point this emitter to fire out these00:57:11
particles wherever you want them to be00:57:13
and these direction axis controls are00:57:15
only going to show up on certain00:57:16
animation types if i go to explosive00:57:18
they're grayed out or fractal omni again00:57:21
they're grayed out it's only for00:57:23
animation types that actually have00:57:25
directional properties all right i'm00:57:27
going to change this back to explosive00:57:28
and we'll take a look at gravity vector00:57:30
next this is literally just the00:57:32
direction of the gravity so if i reset00:57:34
that gravity value to its default of 0.500:57:37
and go to a point where the producer is00:57:38
still in fact i'll move the producer up00:57:41
further for its final position so we can00:57:43
see it higher up the gravity vector00:57:46
determines what direction the gravity00:57:48
actually pulls in so if i change this00:57:50
one to a negative one it will be00:57:52
reversed but it's not actually the00:57:54
amount of gravity it's just the00:57:57
direction of the gravity so changing00:57:59
this from zero to one00:58:02
has no effect on the speed of that00:58:04
gravity it's just the direction so if i00:58:06
increase gravity x or z into anything00:58:09
besides zero then it's going to00:58:11
influence the gravity overall but it's00:58:14
combining it with the gravity y which is00:58:16
set to one it's a maximum so if i00:58:19
increase the x gradually then it's going00:58:21
to go in an angle towards the right side00:58:23
a value of 1 it's going to go at a 4500:58:26
because both the y and x are equally00:58:28
pulling it if i turn that y gravity down00:58:31
to 0 now the gravity is going straight00:58:33
to the right so playing with these00:58:35
values at less than a value of 1 will00:58:38
shape the direction that the gravity is00:58:39
pulling the particles00:58:41
but i'm going to just leave these all at00:58:43
their defaults so that gravity falls00:58:45
downwards now let's go back up to the00:58:47
floor category and to make this a little00:58:49
bit easier to see i'm actually going to00:58:51
enable my grid and turn it onto the00:58:53
floor so we can see it let's turn that00:58:55
grid size up we can see that nice and00:58:57
clearly and these particles are just00:58:59
falling straight through the floor but00:59:01
if i go into my floor options i can00:59:04
adjust the floor position to be higher00:59:06
or lower but i can also change my floor00:59:08
action00:59:09
from none to ice glue or bounce so let's00:59:13
start with bounce00:59:14
immediately my particle simulation has00:59:17
changed what's happening is the00:59:18
particles are hitting that invisible00:59:20
ground plane and then bouncing up so00:59:23
let's bring that floor position up a00:59:24
little bit and i'm actually going to00:59:26
change my particle type from line to00:59:29
motion polygon so we can see the00:59:31
direction of these particles so they're00:59:33
being emitted out flying down hitting00:59:35
the ground and bouncing again00:59:37
and we have properties to control this00:59:39
bounciness so i could make them more00:59:40
bouncy and now they're going to bounce00:59:42
higher i could turn that way down and00:59:44
they'll bounce far less00:59:46
i could turn up the randomness of the00:59:48
bouncing00:59:49
and i could turn up the bounce spread00:59:51
which just randomizes the direction that00:59:53
they go after bouncing off of the floor00:59:55
so if i turn it all the way down they're00:59:57
all going to just uniformly bounce00:59:58
around if i turn it up it'll be much01:00:01
more chaotic01:00:03
now up above the floor action we have01:00:05
render animation and it's set to normal01:00:07
but we could change this to reflected on01:00:09
floor and it's basically giving us a01:00:11
reflection of our particle simulation so01:00:14
if you needed to have this particle01:00:16
simulation reflected this is a way to01:00:18
actually get a 3d version of it01:00:20
mirrored and reflected off of that floor01:00:22
surface01:00:23
i could also change this to projected on01:00:25
floor which would allow you to basically01:00:28
generate shadows from this particle01:00:30
emitter that are actually accurate01:00:32
now i want to leave that back to normal01:00:34
and then take a look at the properties01:00:36
above it which is particle visibility01:00:37
it's currently set to all but i could01:00:39
change this to render only the particles01:00:41
that are above the floor so as soon as01:00:43
they cross that floor threshold they01:00:46
disappear or i could change this to01:00:48
after floor and we're only going to get01:00:50
the particles that are bouncing and01:00:52
these are all ways to be able to01:00:54
separate parts of your particle01:00:56
simulation so that you can treat them01:00:57
differently or composite them01:00:59
differently if you need to i'm going to01:01:01
change that back to all and we'll take a01:01:03
look at another floor action so let's01:01:04
say ice like you might imagine this is01:01:07
going to have the particles hit the01:01:08
floor and then slide as if it's on ice01:01:11
but we don't have any other controls for01:01:13
that floor action next is glue and this01:01:16
is going to be like darts sticking into01:01:19
the ground the particles hit the surface01:01:21
and then fade off and this is a little01:01:23
hard to see because we're using the01:01:24
motion polygon particle type so as soon01:01:27
as they stop moving they get very small01:01:28
but if i change this to just try polygon01:01:31
then they're going to hit the floor and01:01:32
stick there so those are the three01:01:35
different floor actions i'm going to01:01:36
change this back to none so it falls01:01:38
through again and that finishes up the01:01:41
physics category let's move on to the01:01:43
particle section where we have a few01:01:45
different controls than cc particle01:01:47
systems 2. let's go back to the first01:01:49
particle type which is line this grays01:01:51
out a lot of controls but almost01:01:54
everything else is identical to particle01:01:56
systems too we have the max opacity the01:01:58
color map birth and death colors and01:02:01
transfer mode the additional controls we01:02:03
have are the opacity map is no longer01:02:06
just a couple of presets we actually01:02:08
have this map that we can draw on and01:02:10
manipulate so this graph is representing01:02:13
that at the start of the animation it01:02:15
should be transparent and as time goes01:02:18
on it will get more and more opaque stay01:02:20
opaque and then gradually fade off into01:02:23
nothing again but i could change this01:02:25
just by clicking and dragging with this01:02:26
pen shape01:02:28
and curve this out to be whatever shape01:02:30
i want i could even go up and down a few01:02:32
times before the end and if i turn the01:02:34
particle longevity down a little bit01:02:36
we'll get rid of that grid and then i'll01:02:38
jump into the physics and turn the01:02:39
velocity all the way down turn the01:02:40
inherent velocity down and just let01:02:42
gravity pull it downwards i'll reset01:02:45
some of these other values as well01:02:47
and then finally change it from line01:02:49
back to say try polygon so we can see it01:02:51
nice and clearly i'll zoom in here and01:02:53
play it back01:02:54
and what our opacity map is doing is01:02:57
shaping the opacity of these particles01:03:00
over time so if i do a bunch of up and01:03:02
down movements we're basically going to01:03:04
make our particles flicker let me turn01:03:06
up the longevity just a little bit more01:03:09
so you can really see those opacity01:03:10
changes so at the start it gradually01:03:13
gets up but i could modify this to have01:03:15
it just be 100 opaque at the start i01:03:17
could really go crazy going up and down01:03:19
and up and down and up and down and now01:03:21
throughout the life of the particles01:03:23
they'll basically be increasing and01:03:24
decreasing their opacity until they01:03:26
disappear obviously i don't like the way01:03:28
that looks i'm just going to change this01:03:30
back to a nice smooth curve now01:03:32
obviously my smoothness is nowhere near01:03:34
as smooth as the original but if i hold01:03:36
down the control key and click and drag01:03:39
to the right it's going to smooth it out01:03:41
so i can keep clicking and dragging to01:03:43
really smooth this out and to make this01:03:44
a little bit more dramatic i'm just01:03:46
going to go really fast and bumpy01:03:48
and show you that clicking and dragging01:03:49
to the right will smooth out your curves01:03:52
a lot more so there's not such drastic01:03:54
bumps you can also hold down shift and01:03:57
click and it will raise the highest01:03:59
point in your graph to the top point of01:04:02
the opacity map01:04:03
i'll close that up and move down to01:04:05
custom color map which is a more complex01:04:08
way of applying colors instead of just01:04:09
using birth color and death color i can01:04:11
change that color map to be custom01:04:14
and now we not only have birth and death01:04:16
colors but also 25 50 and 75 percent01:04:19
colors so i could change these colors to01:04:22
absolutely anything i want and they will01:04:24
just cycle through the life of the01:04:26
particles so it's just an added level of01:04:29
control to be able to stylize your01:04:32
particles however you want01:04:35
now this next option called volume shade01:04:37
approximate only shows up for certain01:04:40
particle types but on these triangles it01:04:42
does work so if i increase volume shade01:04:45
what it's going to do is basically shade01:04:47
the particles based on how close or far01:04:49
away from the camera they are to give01:04:51
them more depth so if i increase the01:04:54
amount of particles and maybe make that01:04:56
producer just a little bit larger01:04:58
and then modify that volume shade again01:05:01
you can see how it's making the closer01:05:03
particles brighter and the further away01:05:05
particles dimmer01:05:06
now let's back up a few controls and01:05:08
take a look at the rotation speed and01:05:11
initial rotation these are basically01:05:13
just better labeled controls for what01:05:15
the extra and direction properties did01:05:17
in cc particle systems 2. on the01:05:19
tri-polygon particle type extra and01:05:22
extra angle are going to affect the01:05:23
animation type and rotation speed and01:05:26
initial rotation is going to affect the01:05:29
particle type01:05:30
so if i turn the rotation speed to zero01:05:33
then the particles are not going to01:05:34
rotate at all as they're emitted let me01:05:37
turn down the birth rate so we can see01:05:38
them a little bit more individually and01:05:40
i'll zoom in nice and close here the01:05:41
initial rotation value is actually a01:05:44
randomness so if i turn it all the way01:05:45
down to zero then my triangles are all01:05:47
going to be pointing upwards and because01:05:49
i have no rotation speed they won't01:05:51
rotate at all if i increase the rotation01:05:53
speed then they're going to start at an01:05:55
initial rotation of nothing and then01:05:57
eventually start rotating01:06:00
then we have the option to control the01:06:01
rotation axis it's currently set to any01:06:03
axis but i could rotate it only on the01:06:05
x-axis and let's just turn up that01:06:07
rotation speed a bit so you can see that01:06:09
they're kind of flipping i could change01:06:11
that to y-axis and then they're going to01:06:13
be rotating around01:06:15
or the z-axis and they'll be rotating01:06:17
more like around a clock01:06:19
i'll set that back to any axis and01:06:21
increase the initial rotation so it's a01:06:23
little bit more random again we have a01:06:24
size variation slider which does exactly01:06:27
what you think it's a randomness control01:06:29
now let's jump back up to this texture01:06:31
section and this is another unique01:06:33
property to cc particle world if i01:06:35
change the particle type to something01:06:36
that uses a texture like a textured quad01:06:39
polygon instead of pulling the texture01:06:41
from the layer we've applied this to we01:06:43
can now choose a texture layer01:06:46
so i've created this little smoky01:06:48
element that's not very big at all it's01:06:50
just 20 pixels by 20 pixels and if i01:06:53
pull that pre-comp out into this comp i01:06:56
don't even need to see it i'll just turn01:06:57
it off i can select that as my texture01:07:00
layer and my quad polygons are going to01:07:02
be textured with that pre comp now i'm01:07:05
going to change the transfer mode to01:07:06
screen so this looks a little bit more01:07:08
like smoke and then come back up here01:07:10
and take a look at the other controls we01:07:12
have this scatter property which allows01:07:14
us to shift the texture around within01:07:16
that quad polygon but once it fills the01:07:19
edges we're really going to see that01:07:20
show up so i'm not going to change that01:07:23
next we have texture time which is set01:07:25
to current meaning that it's sampling01:07:27
the current time in the comp for the01:07:30
texture that we're applying so if this01:07:32
was animated and in fact i will animate01:07:35
it just by going into the evolution01:07:37
and setting some keyframes and01:07:39
increasing this value so now the01:07:41
animation plays back like this01:07:43
my particle's texture is going to be01:07:45
animated as well but i could change this01:07:48
from current time to birth and then it01:07:50
will take whatever point in time the01:07:53
particles are generated at and sample01:07:55
that point in times texture and freeze01:07:57
it at that point throughout the entire01:07:59
simulation01:08:00
or i could change it to from start01:08:03
meaning it's going to align the start of01:08:05
this precomp texture source to the birth01:08:08
time of every particle so each particle01:08:11
will play through that comp from start01:08:13
to finish these are very very powerful01:08:16
controls now we also have this grayed01:08:17
out box that says align to direction01:08:20
this is only going to work with particle01:08:22
types that have direction properties01:08:24
which again is unique to cc particle01:08:25
world if we go to the particle type we01:08:28
have this section at the bottom called01:08:29
textured square texture disc and01:08:31
textured faded disk so if i change this01:08:34
to textured square then not only are we01:08:36
no longer going to see those hard edges01:08:38
we're going to get the coloring controls01:08:40
back from our custom color map that we01:08:42
set up so this last section of particle01:08:44
types is very powerful because now we're01:08:46
sampling this pre-comp as our texture01:08:49
it's blending it better because of the01:08:51
way that it's applying the texture to01:08:53
the particles and we're still able to01:08:55
color it using our color map and this01:08:57
also applies to the textured disk and01:09:00
textured faded disk as well01:09:02
but with textured disk and faded disk we01:09:05
also have the ability to align to01:09:06
direction so let me change this to01:09:09
current for the particle texture time01:09:11
which will rotate the particles based on01:09:13
their motions so if i change the physics01:09:16
velocity to be much higher then the01:09:18
texture is going to face the direction01:09:21
that those particles are traveling in so01:09:22
you see how this particle right here is01:09:25
pointed kind of this direction this one01:09:27
right here is pointed this direction and01:09:28
that applies to both textured disk and01:09:31
textured faded disk and at this point so01:09:33
many of these little properties and01:09:35
names carry over that it's pretty01:09:37
self-explanatory as to what they mean01:09:39
once you start getting in here and01:09:40
playing with these properties things01:09:42
start to click and it starts to make a01:09:44
lot more sense i know it's a lot to look01:09:46
at at first but getting your hands dirty01:09:48
and actually playing around with these01:09:49
controls and reading the user manual is01:09:52
how you can really get a good01:09:53
understanding now let's take a look at01:09:55
the extras category and jump right into01:09:57
the first one which is effect camera the01:10:00
effect camera is the 3d camera that this01:10:02
effect is actually generating lots of01:10:04
effects have this system where you can01:10:06
choose between an effect generated01:10:08
camera or the comps camera to drive the01:10:10
3d scene the thing about particle world01:10:12
in particular is that none of these01:10:13
controls will work if there's any 3d01:10:15
layer in your scene even if you don't01:10:17
have a 3d camera i do have a 3d null01:10:20
so adjusting these properties will do01:10:22
absolutely nothing now obviously i don't01:10:24
want to get rid of this control but just01:10:25
to show you how it works i'm going to01:10:27
delete it and now these controls will01:10:30
allow me to rotate the effect camera01:10:31
around i can move it in and out and i01:10:34
can even change the field of view but01:10:36
these are all controls that you have01:10:38
access to just by making a 3d camera so01:10:41
if i add another camera back in i can01:10:44
rotate it around i can move up and down01:10:47
dolly in and out and i can even zoom in01:10:49
and out under the camera options to01:10:51
change the field of view okay i'm gonna01:10:54
get rid of that camera that's all for01:10:55
the effect camera controls and next up01:10:58
is depth cue and this controls the01:10:59
visibility of the particles based on the01:11:02
distance from the camera so by default01:11:04
it's set to none meaning the particles01:11:06
are not influenced at all by that depth01:11:08
but if i change this to fade then the01:11:11
further away they are the dimmer they'll01:11:12
become so if i make my producer much01:11:15
bigger on the z-axis and i rotate my01:11:17
camera around to be facing those you can01:11:20
see that the particles closer to the01:11:21
camera are brighter than the particles01:11:24
that are further away and i can control01:11:26
that fall off with this distance slider01:11:29
so if i turn it down then they're going01:11:31
to fade out much sooner or if i can01:11:33
crank it up then they will fade out01:11:35
further away from the camera the next01:11:38
option is fog and this basically tints01:11:40
the particles to whatever you set the01:11:42
fog color to again using this distance01:11:45
slider as the control so if i wanted to01:11:48
fade them all to say black i could just01:11:50
set black and they'll fade out to black01:11:53
or if i want them to fade to white i'll01:11:55
make them white but that's all for depth01:11:57
cue i'll set that back to none and then01:11:59
we'll go into the light direction01:12:01
now this effect does not actually react01:12:03
to lights so if i add in a point light01:12:06
and set it to 100 intensity and click ok01:12:09
that's not going to affect the particles01:12:12
at all no matter where i move it in my01:12:14
scene it's not interacting with these01:12:16
particles but we do have the light01:12:17
direction controls within the effect so01:12:20
i can rotate my light source around01:12:22
which interacts with the particles and01:12:24
how they're overlapping but that's the01:12:26
extent of those controls01:12:28
i'll collapse that and the next option01:12:30
is hold particle release so i'm actually01:12:33
going to get rid of my 3d camera we01:12:34
don't need to be looking through that01:12:35
anymore and i'm going to turn the radius01:12:37
back down and this is basically a delay01:12:40
for the start of the particle simulation01:12:42
so let me just move these keyframes out01:12:43
of the way so we're static at the01:12:44
beginning01:12:45
what this basically does is holds the01:12:48
particle in place by a percentage of the01:12:50
particle's life so the particles will01:12:52
appear before then being emitted from01:12:55
the producer so if i set this to 7501:12:58
then 75 percent of its life is going to01:13:00
be spent right where it's birthed and01:13:02
then the animation type will be applied01:13:04
to it and it will go out and if i change01:13:06
this to 2501:13:07
it'll get released quicker next up we01:13:10
have composite with original which just01:13:11
composites those particles on top of01:13:13
whatever the layer was before you01:13:15
applied the effect as a white solid it's01:13:17
very hard to see those particles01:13:19
i'm just going to uncheck that and then01:13:21
finally we have the random seed which01:13:23
just randomizes the simulation and with01:13:26
that we have covered every single01:13:28
property control and menu inside of cc01:13:31
particle world hey thanks for watching01:13:33
if you enjoyed this tutorial then check01:13:34
out the other ones here on my youtube01:13:36
channel and if you like my teaching01:13:37
style then definitely check out my01:13:39
longer form content on skillshare and01:13:41
school of motion and if you want to01:13:42
support more tutorials like this one01:13:44
check out my patreon you can find links01:13:46
for all that stuff in the description of01:13:47
this video01:13:52
[Music]Description:
In this very long tutorial, I explain how to use the CC Particle Systems II and CC Particle World effects in Adobe After Effects. Both effects are fantastic particle emitters that come with After Effects and can create amazing effects. CC Particle Systems II is a 2D particle emitter, while CC Particle World is a 3D particle emitter. Both have very similar sets of controls, so make sure you watch this video in order as I don't go back and explain repeated controls in CC Particle World. CC Particle World Shorts Playlist: https://www.youtube.com/playlist?list=PLjNI3J96cKVJHcaAbRLH3Dt-v4hSMVitq 🤝 Support more YouTube tutorials through Patreon: https://www.patreon.com/jakeinmotion 🎓 Learn from me other places: Skillshare: https://www.skillshare.com/en/ Explainer Camp: https://www.schoolofmotion.com/courses/explainer-camp Photoshop + Illustrator Unleashed: https://www.schoolofmotion.com/courses/photoshop-and-illustrator-unleashed 🚶 Follow me online: Instagram: https://www.facebook.com/unsupportedbrowser Dribbble: https://dribbble.com/jakeinmotion Twitter: http://bit.ly/2tOX7ui 🏷️ Tag me on Instagram @jakeinmotion if you used something you learned from me! Chapters: 00:00:00 Intro 00:01:10 CC Particle Systems II 00:03:23 Birth Rate & Longevity 00:04:39 Producer Controls 00:06:23 Physics 00:07:20 Linking the Producer to a Null Object 00:08:49 Velocity & Inherit Velocity 00:11:56 Resistance 00:13:24 Particle Controls 00:22:30 Sphere Particles 00:25:47 Polygonal Particles 00:29:30 Lens Particles 00:31:10 Fractal Explosive 00:32:35 Twirl 00:34:09 Twirly 00:34:46 Vortex 00:36:36 Fire 00:38:01 Direction 00:39:04 Direction Normalized 00:39:39 Jet Sideways 00:41:43 CC Particle World Grids & Guides 00:47:17 Linking the Producer to a 3D Null Object 00:53:05 Radius Controls 00:53:27 Physics 00:56:46 Direction Axis Controls 00:57:29 Gravity Vector 00:58:46 Floor Controls 01:01:42 Particle Controls 01:04:04 Custom Color Map 01:04:35 Colume Shade (approx.) 01:06:29 Textured Particles 01:09:54 Effect Camera 01:10:57 Depth Cue 01:12:01 Light Direction 01:12:29 Hold Particle Release 01:13:32 Thanks for watching!
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How can I download an audio track (music) to MP3 "CC Particle Systems II + CC Particle World | Effects of After Effects"?
The most convenient way is to use the UDL Client program, which supports converting video to MP3 format. In some cases, MP3 can also be downloaded through the UDL Helper extension.
How can I save a frame from a video "CC Particle Systems II + CC Particle World | Effects of After Effects"?
This feature is available in the UDL Helper extension. Make sure that "Show the video snapshot button" is checked in the settings. A camera icon should appear in the lower right corner of the player to the left of the "Settings" icon. When you click on it, the current frame from the video will be saved to your computer in JPEG format.
What's the price of all this stuff?
It costs nothing. Our services are absolutely free for all users. There are no PRO subscriptions, no restrictions on the number or maximum length of downloaded videos.