Legacy Documentation: Version 2018.1 (Go to current version)
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

Experimental: this API is experimental and might be changed or removed in the future.


struct in UnityEngine.Experimental.U2D


Implemented in:UnityEngine.CoreModule

Suggest a change


Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.


Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.




A struct that holds a rich set of information that describes the bind pose of this Sprite.

Most importantly this struct describes the hierarchy and various other spatial relationships between the bones.


lengthThe length of the bone. This is important for the leaf bones to describe their length without needing another bone as the terminal bone.
nameThe name of the bone. This is useful when recreating bone hierarchy at editor or runtime. You can also use this as a way of resolving the bone path when a Sprite is bound to a more complex or richer hierarchy.
parentIdThe ID of the parent of this bone.
positionThe position in local space of this bone.
rotationThe rotation of this bone in local space.

Did you find this page useful? Please give it a rating: