Vertex Animation Subsystem

This is a subsystem that makes it easy to create and update instances without worrying about the technology under the hood.
It provides functions for handling instances which are exposed to blueprint.

Functions

//When this function is called, the subsystem will create an ISM for the mesh if needed. It will also apply the given world transform.
int AddInstance(UStaticMesh* StaticMesh, const FTransform& Transform);

TArray<int> AddInstances(UStaticMesh* StaticMesh, const TArray<FTransform>& Transforms);

TArray<FVertexAnimationInstanceInfo> GetInstances(UStaticMesh* StaticMesh) const;

bool RemoveInstanceByIndex(UStaticMesh* StaticMesh, int Index);

bool RemoveInstanceById(UStaticMesh* StaticMesh, int Id);

bool RemoveInstancesByIndex(UStaticMesh* StaticMesh, const TArray<int>& Indices);

bool RemoveInstancesById(UStaticMesh* StaticMesh, const TArray<int>& Ids);

bool UpdateInstanceTransformById(UStaticMesh* StaticMesh, int Id, const FTransform& Transform);

bool UpdateInstanceTransformByIndex(UStaticMesh* StaticMesh, int Index, const FTransform& Transform);

bool BatchUpdateInstancesTransform(UStaticMesh* StaticMesh, int StartIndex, int Num, const FTransform& Transform);

bool BatchUpdateInstancesTransforms(UStaticMesh* StaticMesh, int StartIndex, const TArray&lt;FTransform&gt;&amp; Transforms);

bool SetCustomDataById(UStaticMesh* StaticMesh, int Id, int CustomDataIndex, float Value);

bool SetCustomDataByIndex(UStaticMesh* StaticMesh, int Index, int CustomDataIndex, float Value);

int GetIndexFromId(UStaticMesh* StaticMesh, int Id) const;

int GetIdFromIndex(UStaticMesh* StaticMesh, int Index) const;