Reference TColorTexVertexBuffer

  TColorTexVertexBuffer = class(TDrawingBuffer<TColorTexVertex>)
  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 Tex: TVec2; Color: TVec4): TColorTexVertexBuffer; overload;
    function Add(X, Y, Z, U, V, R, G, B, A: Float): TColorTexVertexBuffer; overload;
  end;