I’m Ayana, a Vtuber!
Today, I will explain about Non-linear Animation
What is the non-linear animation?
Non-linear animation is an animation that creates a series of movements, such as copying the created animation such as movement and rotation to a different frame and set to complement the action.
An editor that can manage and edit created actions is called a “Non-linear Animation Editor”.
Duplicate one action
Duplicate the set action so that it can be used in different frames.
First, set the keyframe at 60 to animation so that object rotates 360 degrees along the Y-axis.
１. Change editor type
Click the clock icon in the upper left of the timeline window, then click “Non-Linear Animation”.
２. Convert from action to strip
One action is set for the object called Cube and the entire action is displayed in orange.
The dark orange color between the keyframes is where the action is actually set.
To edit this action, change it to an editable state called a strip.
Click the white icon to the right of the action name (CubeAction in this case).
The action between keyframes will then change to a strip and appear yellow.
Now you can edit the action.
３. Duplicate (copy)
Right-click on the strip and click “Duplicate”.
The strip (CubeAction.001) has been duplicated.
４. Place in a different frame
Press “G” on your keyboard once on the strip you want to move.
The strip will then turn purple and you can move it with your mouse.
Once you have decided where to place it, click to place the strip.
This time I want to set the rotation action at frame 100, so I will place the strip on frame 100.
５. See what results
You can see that it stops at frame 60 and starts to rotate again from frame 100.
Complement the action
Next, let’s connect the two actions you set to a series of actions without using keyframes.
１. Complement the action
Place the strip you duplicated earlier in the same hierarchy as the source (CubeAction) by pressing “G” on the keyboard once.
After clicking one action, hold down “Ctrl” on your keyboard and select the other action.
If you press “Shift + T” on your keyboard with the previous or next action selected, a light blue strip called “Transition” will be added.
２. See what results
You can see that the actions between frame 60 and frame 100 have been complemented.
Next, let’s combine the two set actions into one animation.
Prepare in advance
Set keyframes at frame 30 to rotate 360 degrees in the Y-axis direction, at frame 90 to move 10m in the Y-axis direction, then at frame 120 to return to their original position.
１. Connect two actions
Open the NLA Editor as before, right-click on the strip and click “Split Strip”.
First, I will split the strip to delete the frame with no animation.
Select frame 30, right-click and choose “Split Strip”
Now move to frame 60 and split the strip in the same way.
Then the strip is split like this.
I will select the middle strip and delete it by right-click and select “Delete Strip”.
Then there will be a gap between the strips, so press “G” to move them and connect the strips together.
With two strips selected, press “Ctrl + G” on your keyboard to change to one purple strip called meta.
３. See what results
You can see that the rotation and movement animations are connected and become one animation.
This is the end of the explanation about Non-linear animation!
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