Animation blend trees

Use blend trees to blend between two or more similar motions, such as between walking and running animations. The Animator windowThe window where the Animator Controller is visualized and edited. More info
See in Glossary contains a visual blend tree which you can use to smoothly blend multiple animations together.

Topic	Description
Animation Blend TreesUsed for continuous blending between similar Animation Clips based on float Animation Parameters. More info See in Glossary	Blend multiple animations smoothly by incorporating parts of each motion at varying degrees.
1D Blending	Blend child motions according to a single parameter such as direction or speed.
2D Blending	Blend child motions according to two parameters using directional or cartesian algorithms.
Direct blending	Map animator parameters directly to the weight of a child motion for exact blending control.
Common Blend Tree Options	Configure time scale adjustments and mirroring on blend tree motions.

Additional resources

Animation state machineA graph within an Animator Controller that controls the interaction of Animation States. Each state references an Animation Blend Tree or a single Animation Clip. More info
See in Glossary
Animation parametersUsed to communicate between scripting and the Animator Controller. Some parameters can be set in scripting and used by the controller, while other parameters are based on Custom Curves in Animation Clips and can be sampled using the scripting API. More info
See in Glossary

Animation transitions

Animation Blend Trees

Unity Manual

Animation blend trees

Additional resources