Adding head and eye joints

00:03

Let's add the head and eyes next

00:07

for the head, we can simply duplicate the neck joint,

00:11

just select it and press control and D

00:15

and move this up to where the base of the skull would be or the top of the spine.

00:20

On a human model. This is usually just behind the ears.

00:24

We need this to be parented to the neck joint. So select it and then press P

00:30

now duplicate the head joint and move it over to the eye

00:33

a quick way to get the joint into the exact center of the eye is to select the eye model.

00:38

And then the joint

00:42

now go to constrain point.

00:44

This will attach the joint to the model using a constraint.

00:48

If we have maintained offset disabled, the joint will move,

00:52

but it's also connected it too.

00:54

So if we move the eye model, the joint would follow

00:57

what we need to do. Now is remove this connection.

01:01

If we go back into the outliner

01:06

and find that joint,

01:08

you will see it has a point constraint node attached,

01:11

simply delete this to free the joint.

01:15

Another alternative to using a point constraint would

01:17

be to use Mayer match transformations tool.

01:21

You can find this in the modify menu.

01:24

Just one thing to note if your eye model isn't completely spherical.

01:28

Like in this example,

01:29

this method will only constrain it to the middle of the geometry,

01:33

not the actual sphere.

01:36

In that instance,

01:37

simply move the joint back once the constraint

01:39

is deleted or you have positioned the joint,

01:42

all we need to do now is parent this eye joint to the head joint.

01:46

So the eye will move with the head.