i don’t know much about clamp but i guess
clamp is used to make the value come between the value( 2-1 in this case) the value can be 20 or 30 but clamp helps to get the value between 1 and 2 in this case, i don’t know much about view size but it’s an input value which can be anything (even 30 or -0.1) so to get that to be what we want we use clamp