private void SetNormal(IImmediateLitMeshContext meshContext, Vector3 vector3)
 {
     meshContext.Normal3(vector3.X, vector3.Y, vector3.Z);
 }
 private void SetVertex(IImmediateLitMeshContext meshContext, Vector3 vector3)
 {
     meshContext.SetVertex3(vector3.X, vector3.Y, vector3.Z);
 }