Single looping Animation clip without Animator Controller

For everyone who is still interested in this question: This is the Legacy Animation component. This component is only in Unity for backwardscompatiblity. I dont know a way of just adding an animation to an object without controller, but you can Drag and Drop your animationclip on the Gameobject, which generates the controller automaticly for you.

For everyone still looking for this solution. Simply select your animation clip and check "loop" as wrapping mode in the inspector! No need for a controller :)

@theLucre

Also If your animation is part of fbx model. You can set wrap mode from code. Like this:

  Animator animator = GetComponent<Animator>();
  Animation animation = GetComponent<Animation>();
  
  var clips = animator.runtimeAnimatorController.animationClips;
  foreach (AnimationClip clip in clips)
  {
      clip.wrapMode = WrapMode.Loop;              
      clip.legacy = true;
      animation.AddClip(clip, clip.name);
  }
  
  animator.enabled = false;
  animation.enabled = true;
  
  animation.CrossFade("Idle", .25f);