[Closed] How to perform script when slider manipulator value changes?

If it’s just a boolean value you’re trying to detect, would it be easier to just run the script as a UI button?

Yup, it would be much easier if I could just use a script and drag it to the toolbar but thats not what I need for this particular model. Its a uni project that can only use slider manipulators to keep it simple and the hand in is just a max file.

It might not be possible to be honest, i’ve tried using wiring but couldn’t discover a way to evaluate “value” within the wiring dialog, I can only apply new values.

Thanks anyway
Anim

Additionaly I could add a Float Script controller to the Value of a slider but that then removed all interactivity.

you know i have the same problem , don’t know how tho check user interaction
then its easy
for example you would need an if statement

if ( sliderval == 1) then
(
hide the objects you want
)
else
(
unhide the objects you want
)

something like that
but how truck the user changes

What about trying a change handler on the parameters of the master slider?
This will leave the ability to move them, but removes the labels and sliders.

when parameters <MasterSlider> changes do (if <MasterSlider>.value == 1.0 then (<Slider>.hide = on) else (<Slider>.hide = off))

This hides the Slider at the node level.

when parameters <MasterSlider> changes do (if <MasterSlider>.value == 1.0 then (<Slider>.ishidden = true) else (<Slider>.ishidden = false))

Hope this helps some,
-Eric

This script creates a slider and 5 rectangles, hides the rectangles when the slider reaches 100.0 and unhides them when the value of the slider is < 100.0. Hope it helps

recArray = #()
 theSlider = sliderManipulator xpos:.1 ypos:.48
 for i = 1 to 5 do
 (
 	theRec = rectangle length:20 width:20
 	theRec.pos.x = i*25
 	rotate theRec (eulerangles 90 0 0)
 	theRec.wirecolor = yellow
 	append recArray theRec
 )
 
 when parameters theSlider changes do
 (
 	if theSlider.value == 100.0 then
 	(
 		for i in recArray do (hide i)
 	)
 	if theSlider.value < 100.0 then
 	(
 		for i in recArray do (unhide i)
 	)
 )

theirs any way that save the when statement .
because if yo save the scene and then re open it you will find that the script doesnt work any more.

Yes you can make it a persistent global. This will embed the change handler into the scene.

a = when parameters <MasterSlider> changes do (
 	if <MasterSlider>.value == 1.0 then (
 		<Slider>.ishidden = true
 	)
 	else (
 		<Slider>.ishidden = false
 	)
 )
 persistent global a

-Eric

Some promising responses there, thanks guys.

Am I right in thinking that simply evaluating the script in my scene with the “persistent global a” will somehow embed it into the max file without the need for a seperate ms file or attaching it to an object in some manner?

If so then that is fantastic.

Cheers
Anim