/// <summary>
 ///     To indicate the projection matrix has changed
 /// </summary>
 /// <param name="type">Parameters changed</param>
 private void NotifyProjectMatrixChanged(ProjectionMatrixChangedVariableType type)
 {
     if (ProjectionMatrixChanged != null)
     {
         ProjectionMatrixChanged(this, new ProjectionMatrixChangedEventArgs(type));
     }
 }
 public ProjectionMatrixChangedEventArgs(ProjectionMatrixChangedVariableType type)
 {
     this.ChangedType = type;
 }