Version: 2022.3
LanguageEnglish
  • C#

Mesh.MarkModified

Suggest a change

Success!

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.

Close

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.

Close

Cancel

Switch to Manual

Declaration

public void MarkModified();

Description

Notify Renderer components of mesh geometry change.

By default, whenever Mesh data changes that could affect the geometry of the mesh, all Renderer components that use this mesh get notified. For example, MeshRenderer components recalculate their bounding boxes, and ShapeModule rebuild internal data used for mesh surface emission.

However a MeshUpdateFlags.DontNotifyMeshUsers flag can be used in Mesh.SetVertexBufferData, Mesh.SetIndexBufferData or Mesh.SetSubMesh in order to skip this notification. This can be beneficial when you know that many mesh modifications will happen before the renderer components will need to actually update. A manual call to MarkModified can be used later to notify the dependent renderer components of a mesh geometry change.

MarkModified function only needs to be called if you actually use the DontNotifyMeshUsers flag. In all other cases the mesh change notifications happen automatically.

Additional resources: Mesh.SetVertexBufferData, Mesh.SetIndexBufferData, Mesh.SetSubMesh.