MAXScript - Declare variable only once - not working

[Morne]

Hi all

I have a script with a couple of functions and a UI

For some reason, I have to declare or assign my variable a value in every function. Not sure why it's not working if I only do it once in the beginning?

[Rens]

Hi Morné, if you declare a variable inside of the first function it will be local inside of the first function only. Simply put, anything declared inside of parentheses will be visible only within those parentheses.

You can also explicitly declare the variable as available from everywhere placing 'global' in front of it, for example: global aTemp = #(1,2,3)

In your script you can declare the variable outside of and before the rollout and the functions. It should be available for your functions and UI then.

Also see 'scope of variables' in the maxscript help.

[Morne]

Hi Morné, if you declare a variable inside of the first function it will be local inside of the first function only. Simply put, anything declared inside of parentheses will be visible only within those parentheses.

You can also explicitly declare the variable as available from everywhere placing 'global' in front of it, for example: global aTemp = #(1,2,3)

In your script you can declare the variable outside of and before the rollout and the functions. It should be available for your functions and UI then.

Also see 'scope of variables' in the maxscript help.

Ah ok, I also tried "local" and that didn't work. I thought "global" meant that other scripts can also access it.

[Rens]

Yeah, you can just declare it at the start of you script, that way it will be available to your rollout and functions only.

aTemp = #(1,2,3)
function fnTemp x = aTemp[1] + x
rollout rltTemp "bla"
etc

[Morne]

I tried it like that at the beginning (without global), but it didn't work

First thing in my script is:

try(destroydialog VizStill)catch()

I think I declared my variable after this. I'll try a bit later today to put it before the above code

[Morne]

OK I tries and its not working

Basically I'm setting

 myvariable = renderers.current

It works fine if I do it in every function, but if I do it 1st thing in my script, then the script doesnt work

[Morne]

Nevermind
1st had to set vray to default, then its fine