public void SetMeshIndexFormatAndClearMesh(Mesh m, int numVerts, bool vertices, bool justClearTriangles)
{
#if UNITY_2017_3_OR_NEWER
if (vertices && numVerts > 65534 && m.indexFormat == UnityEngine.Rendering.IndexFormat.UInt16)
{
MBVersion.MeshClear(m, false);
m.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
return;
}
else if (vertices && numVerts <= 65534 && m.indexFormat == UnityEngine.Rendering.IndexFormat.UInt32)
{
MBVersion.MeshClear(m, false);
m.indexFormat = UnityEngine.Rendering.IndexFormat.UInt16;
return;
}
#endif
if (justClearTriangles)
{
MBVersion.MeshClear(m, true); //clear just triangles
}
else
{//clear all the data and start with a blank mesh
MBVersion.MeshClear(m, false);
}
}