Animation Properties - Unity Official Tutorials

When you have a model highlighted

in the project panel you can define how

Unity interprets the mesh, animation,

and other properties using the Inspector.

These properties come in 3 parts

Model, Rig and Animations.

In this lesson we'll be looking at the

Animations section.

The first option under Animations

is whether or not to import animations.

This must be check to use any of the animations

stored within the model file.

Bake Animations is used when an animation

has been created in a separate modelling

or animation program using inverse kinematics,

or IK for short.

And it has no yet been converted to forward kinematics

You can also choose what sort of

compression you'd like for your animations.

By default there is no compression

but you can choose Keyframe Reduction,

or Optimal.

If you choose to compress the animations

you need to decide what error you wish to

allow for position, rotation and scale.

The smaller the values, the higher the

precision, the less compression you get.

Below the compression options

there's a list of clips that are available

from the model.

These can be added to or deleted

using the + and - icon.

Next to each of the names are the

start and end frames for the clip.

This is what makes each clip in the take different.

When one of these clips is selected

all of the options are available for that

specific animation clip.

The first option is the name of the clip.

Also, if the file has multiple takes

you will see what take that clip is from.

Next is the timeline of the animation.

Using the handles in the timeline

or the Start and End fields

you can edit on which frame

the clip begins and ends.

Below the start and end controls

is the loop controls.

Loop Time, when checked,

means that when the animation is finished

playing it will start again.

If Loop Pose is checked Unity will

try and match up the start and end pose

so that the looping clip looks smooth.

The Cycle Offset is for adjusting

when the clip starts and ends.

Use this for mirroring animations.

For example, if you want a run clip

to be mirrored then you might set the offset

to 0.5 so that the other foot is on the floor.

The Root Transform Rotation

affects how the rotation of an animation

affects the avatar.

If the root transform rotation is baked

in to the pose then the avatar will not

rotate with any turning in the animation.

Use this option for animations

such as running in a straight line

so that any slight deviation from a straight

line will not affect it.

The root transform rotation can either be

based on body orientation at the start

of the animation or the original source file

of the animation.

If Body Orientation is chosen

then the upper body will point forward.

You can use the offset to fine tune

the direction of the animation.

The next options refer to the root

transform position in the Y axis.

As with root transform rotation if you check

Bake Into Pose the avatar will not

move up or down during the animation.

There are a few options of what the

position can be based on.

Original takes the Y position

from the source fail.

Otherwise it can be based on the avatar's

centre of mass or the position of it's feet.

Again the offset can be used to

fine tune the movement in the Y axis.

Root transform position XZ

works similarly to the Y axis option

except that it affects the horizontal

movement of the avatar.

Baking in to the pose will restrict movement

on the XZ plane.

This can be based on either the original file

or the centre of mass.

When you use the handles on the timeline

to adjust the animation you will see a graph

for each of the properties below it

representing how well it will match

when the clip is looped.

Based on this matching each option

has a traffic light indicating how well

it matches.

Green for a good loop match,

yellow for an okay match

and red for a not good match.

Depending on what sort of animation clip

you are trimming you may or may not

want these to loop nicely.

For example, with a walking animation

you would want the pose to loop nicely

but you probably wouldn't want the transform

position XZ to loop.

If the Mirror box is checked

then the animation will be flipped left to right.

For information on the avatar mask

and animation curves and events options

see the lessons linked below.