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.



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.




Format of the imported mesh index buffer data.

Index buffer can either be 16 bit (supports up to 65535 vertices in a mesh), or 32 bit (supports up to 4 billion vertices). Default behavior is ModelImporterIndexFormat.Auto, which picks the format based on vertex count in the mesh.

See Also: ModelImporter.indexFormat, Mesh.indexFormat.


AutoUse 16 or 32 bit index buffer depending on mesh size.
UInt16Use 16 bit index buffer.
UInt32Use 32 bit index buffer.

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