Reference TTexVertexBuffer

  TTexVertexBuffer = class(TDrawingBuffer<TTexVertex>)
  protected
    function CountAttributes: Integer; override;
    procedure BindAttributes; override;
  public
    { Add a vertex, returning the buffer so calls can be chained }
    function Add(const V: TVec3; const P: TVec2): TTexVertexBuffer; overload;
    function Add(X, Y, Z, PX, PY: Float): TTexVertexBuffer; overload;
  end;