unity-animation

Development

Unity Animation skill for Animator controllers, Animation Rigging, Timeline integration, and animation state machines.

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Unity Animation Skill

Animation system implementation and configuration in Unity.

Overview

This skill provides capabilities for implementing character and object animation using Unity's Animator, Animation Rigging, and Timeline systems.

Capabilities

Animator Controllers

Create state machines
Configure blend trees
Set up animation layers
Handle state transitions

Animation Rigging

Implement IK constraints
Create procedural animation
Set up multi-aim constraints
Handle runtime rigging

Timeline

Create animation clips
Sequence cutscenes
Integrate with Cinemachine
Handle animation events

Avatar System

Configure humanoid avatars
Set up animation retargeting
Handle muscle settings
Manage avatar masks

Prerequisites

Unity 2021.3+
Animation Rigging package (optional)
Timeline package (built-in)

Usage Patterns

Animator Controller

public class CharacterAnimator : MonoBehaviour
{
    private Animator animator;
    private static readonly int SpeedHash = Animator.StringToHash("Speed");
    private static readonly int JumpTrigger = Animator.StringToHash("Jump");

    void Update()
    {
        float speed = GetMovementSpeed();
        animator.SetFloat(SpeedHash, speed, 0.1f, Time.deltaTime);

        if (Input.GetButtonDown("Jump"))
        {
            animator.SetTrigger(JumpTrigger);
        }
    }
}

Animation Rigging

[RequireComponent(typeof(RigBuilder))]
public class AimRig : MonoBehaviour
{
    [SerializeField] private MultiAimConstraint aimConstraint;
    [SerializeField] private Transform aimTarget;

    public void SetAimWeight(float weight)
    {
        aimConstraint.weight = weight;
    }
}

Best Practices

Use parameter hashes for performance
Organize layers by body part
Use avatar masks for partial animations
Profile animator updates
Use sub-state machines for organization

References

Animation Documentation