update variable inside custom function (vex)

[ikoon]

Please, in vex, is it possible to define a custom function, which will update the variable, without classic a = function(a) assignment?

For example:

f@big = 1.5;
clamp01(f@big); // function clamps between 0 and 1
f@result = f@big; // result is 1.0

 

I found nothing, but I am newbie, sorry. Is this technique called "pass by reference", or also "pass a pointer"? Probably not possible in vex?

[Nache]

I ikoon,

sure you can, here's examples :

vector pos = @P;
void cl(vector pos)
{
    pos.y = 0;
}
cl(@P);

void clamp01(float cl)
{
    cl = clamp(cl,0,1);    
}

f@big = 1.5;
clamp01(@big); // function clamps @big between 0 and 1
f@result = @big; // paste @big to @result

 

Documentation about it

Hope it help,

Gab.

 

 

Edited October 2, 2017 by Nache
misspelled name

[ikoon]

Gabriel thank you very much!