How ASP.NET will render Hidden field and a textbox with visibility property as false?

[arictetuami]

\[code\]<asp:HiddenField ID="HiddenField1" runat="server" /><asp:TextBox ID="Textbox1" runat="server" Visible = "false"></asp:TextBox>\[/code\]How ASP.Net will render \[code\]asp:HiddenField\[/code\] and \[code\]asp:TextBox\[/code\] with visibility property as false?