Guys and welcome to this new lecture and this new section mainly this is about 3-D aftereffects 3-D
in After Effects is very extensive and it's really very wide you can do so many things including multiplying
moving into plans and you know working with your videos in 3D and your images.
And so if you want to know everything about 3-D and how it works the cameras the lights and more information
and I'm getting this really in-depth.
I have a three hours course about 3D in After Effects that you can take and really sharpen your knowledge
and sharpen your skills.
For now we are going to focus on the most important aspects of 3D.
So you can understand how 3-D works and do some animations and some motion graphics.
Let's start the first thing when we are into the open we shift as and shift.
Are we not is that the position here has two parameters.
Of course and the scale has to play in meters and the rotation has a single permuted here that you can
change parameters or value is the same as in After Effects are always created by default into the and
you can't set that layer to 3D.
You cannot create a layer in 3D.
You can switch them on and off into and out of the 3d.
To do that use the smart switch here.
Remember this is the small switch palette that you have here.
And under the cube you press and it becomes a 3-D.
If you enable the 3-D now a lot of changes happen.
First of all the primitives here and the number of parameters have changed.
Second do you have something called the active camera that has appeared as effective camera that after
effects it creates to be able to show you 3D also the access system has changed.
Now we have our zoomin.
Now we have the y x and z or x y that.
Now this is not complicated this is not geometry.
This is not math.
It's pretty simple by the way to work with.
Let's return to 100 percent.
Let's focus on position.
Of course you still have the X that you can move on the X and you have the y it moves on the Y.
I will undo both.
But then that is a meter on the value that is.
This is the Zed.
If escape through it seems like a scaling up and down.
Actually it's not scaling the perimeter rules take it away from your fictive camera when it's positive
that is your camera here and that when it's negative into take it need your camera.
So it looks smaller or bigger.
And actually it is positioning the laser in 3D or in the Zoopla.
Now we have three plans.
So this is how this will work.
Also let's look at the access system you have here a x axis y axis and the Z axis you can see them.
If you click and drag on the x axis you notice how the mouse pointer.
You notice how the mouse pointer has changed to a not always an X.
It will move on your x axis it doesn't move up and down and so on.
I'm not pressing shift or anything.
And then if you come to y axis we'll also do the same.
It moves up and down but not left or right or anything it's fine.
You have that that is now also it will move away from the camera or nearer to the camera until it can
pass even the camera and go on the other side.
Let's look at the order of the layers in the timeline and how they appear on top or under each other.
I'll put back that at Xs here to zero and I will bring the top layer on top of the second layer.
Now into the what determines and layer is on top of the other one is the order of the layers in the
timeline.
If you take the bottom layer put it on top then the bottom layer will appear on top of the second layer.
That's obvious.
But in 3-D it's a bit different.
Let's put them back to 3-D.
Select them both and press position on the head.
We see the position property with its parameters.
The first layer is on top of the second layer.
That is because the Zed is the same.
So when the Zed value is the same for both layers even if you make it 50 here and 50 here.
So the top layer is on top of the bottom layer or the second layer because the Zed's value is the same.
But what happens when the scrub through the add value.
The first layer now can go behind the second layer.
So the order here is not so relevant is the Zed's value that is relevant.
So if you take this lead and bring it in front that's OK because the value here is negative.
So it's very near the camera.
And the second layer has a value of 50 which is further away from the camera.
Now if you scrub this one to make it on top here you are nearer the camera.
In short a laser appears on top of another layer depending on the Zed's value.
If the Zed's value is identical the order of the layers will matter.
This is something very important and you might be wondering OK how do I get my layers to be on top of
each other and why this there is on top of the other one.
So this is the reason usually we will always look at the Zad value here and try to determine which layer
is on top.
Let's do a small animation here.
That's come here and keyframe for example and go back to the beginning.
We use the Y to take it out and the extra to bring it here.
Then we use the Zad to go away and then when we adjust for example we can do that and put it outside
of course this is a busy path so I can't change the past.
And let's turn our animation.
This is your first animation in 3D.
So that is using the position only I created quite an interesting animation.
Where does that come from outside.
It grows and comes in.
This is about 3-D animation and the position in the next lecture we will see about the orientation and
the x y is that rotation.