Hi,
I got the same problem in the past (I am not working on HISE at the moment because I don't have time) but I solved with a script.
Pratically is the script that manage and update the ScriptProcessor SliderPacks.
You can create an external script as Arpeggiator.js (in the Scripts folder) and in include in the Interface main script:

include("Arpeggiator.js");

Here the script

// create ScriptProcessor SliderPacks array using Synth.getSliderPackProcessor(__name_of_your_script_processor__)
// 0 = PitchPack
// 1 = VelocityPack
// 2 = LengthPack
const SLIDER_PACK_PROCESSOR = Synth.getSliderPackProcessor('SyncedArpeggiator') ;
const SLIDER_PACKS = [
    SLIDER_PACK_PROCESSOR.getSliderPack(0),
    SLIDER_PACK_PROCESSOR.getSliderPack(1),
    SLIDER_PACK_PROCESSOR.getSliderPack(2)
];

//create your GUI SliderPacks array
//  **** IMPORTANT ****
//!!! DO NOT SET the processorId !!! in your GUI SliderPacks
const var SLIDER_PACKS_GUI = [
    Content.getComponent("PitchPack"),
    Content.getComponent("VelocityPack"),
    Content.getComponent("LengthPack")
];

// create a control inline function that updates automatically the ScriptProcessor SliderPacks
inline function onSliderPackControl(component, value)
{
    local idx = SLIDER_PACKS_GUI.indexOf ( component );
	for ( n = 0 ; n < component.get('sliderAmount'); n++ )
       {
            SLIDER_PACKS[idx].setValue(n,component.getSliderValueAt(n));
       }
};
// set for each of the GUI SliderPack the controllCallback above (onSliderPackControl)
Content.getComponent("PitchPack").setControlCallback(onSliderPackControl);
Content.getComponent("VelocityPack").setControlCallback(onSliderPackControl);
Content.getComponent("LengthPack").setControlCallback(onSliderPackControl);

I hope this will help you. Contact me if you have any problem or question.

Have a good day
Antonio

Hi,
I have 2 SliderPacks in a Script processor

Figure 1

In my interface I have a script that creates the same SliderPacks and connected with the following code:

//Set general props for components
const var SCREEN_POS = {x:142,y:10,w:310,h:140};
const var PACKS = ["SliderPack1","SliderPack2"];
const var PACKS_PROPS = [[-24,24,1,310,140,10],[0,1,0.01,310,80,160]];
//Reference to ScriptProcessors SliderPacks
const SLIDER_PACK_PROCESSOR = Synth.getSliderPackProcessor('ScriptProcessor_1') ;
const SLIDER_PACKS = [
    SLIDER_PACK_PROCESSOR.getSliderPack(0),
    SLIDER_PACK_PROCESSOR.getSliderPack(1)
];
//Function to generate the interface SliderPacks
inline function initSliderPacks()
{
    for ( n = 0; n < SLIDER_PACKS.length ; n++ )
    {
         //Create SliderPack
        local pack = Content.addSliderPack ( PACKS[n] + "_1" , SCREEN_POS.x , PACKS_PROPS[n][5] );
       //Set general props 
        pack.set('parentComponent','pnl_SliderPacks_Editor');
        pack.set('width', PACKS_PROPS[n][3]);
        pack.set('height',PACKS_PROPS[n][4]);
        pack.set('min',PACKS_PROPS[n][0]);
        pack.set('max',PACKS_PROPS[n][1]);
        //Get reference to ScriptProcessor SliderPack properties
        pack.set('stepSize',PACKS_PROPS[n][2]);
        pack.set('itemColour',0xAE53838B);
        pack.set('textColour',0x0000000);
        pack.set('bgColour',0xFF000000);
        //pack.referToData(SLIDER_PACKS[n]);
        pack.set('sliderAmount',SLIDER_PACKS[n].getNumSliders());
        pack.set('SliderPackIndex',n);
        pack.set('processorId',"ScriptProcessor_");
        pack.updateValueFromProcessorConnection();
    }
}

initSliderPacks();

If I save my project, close and reopen I got in the interface the following:

Figure 2

Then if I click Compile (from the Interface) I get the right SliderPack (1) :

Figure 3

I noticed that the difference between the SliderPacks is that the first has the following properties:

• min : -24
• max: +24
• stepSize :1
• sliderAmoun: 8

the second one has:

• min: 0.0
• max 1.0
• stepSize 0.01
• sliderAmount: 8

If I build my project (VST or standalone) I got the problem (Figure 2) where the first SliderPack doesn't match with the ScriptProcessor sliderpack and the second works correctly.

Any idea? Thank you.

Hi,
I created a simple VST3 plugin (Sampler) that has 24 pluginParameterName controls by design that I normally use in other plugins to set a custom controller interface/controller midi devices.
When I open my VST in the DAW and trying to get the plugin parameters I get only the standard MIDI CC and only one of the pluginParameterName that I defined in the UI.
I built the UI using a JSON file in order to have better control and customization options by code.
I exported my VST after a normal compile in HISE. Plugin is working as I expected.
Thanks

@Oli-Ullmann
Hi, thnak you !
I will start studying and create something with Scriptnode (yes I too noticed that the Filter module create some glitches when change some parameters, and it happens also with the VST compiled used in different DAWS).
I didn't try the standalone if it has the same problems.

@d-healey
As a developer I am always trying not to "hardcode" options that are going to probably get an update, but in this case my problem was to associate them to a combo items with a correct index in order to work without any hardcode. If you use a normal knob with any value from 0 to 100 and you set the parameterId to the Filter->Mode it works correctly. There is also the problem that "Filter mode", that means no Filter mode selected has to be added to the combo's items in a position that doesn't make sense (see pict below).

I am quite new about HISE,
and I am trying to populate a combo items with the list of the Engine.getFilterModeList() that returns an object.
I was not able to find a way to get the filter modes list as an array of items (or at least the object keys, that should be something like State_mode_name in camel case).
So I tried to set the combo items manually with an order mapped thru a slider set to the Filter->Mode. I found out that the Modes are 0 thru 17, where the Filter mode (no filter selected) is in position 15.
But even setting the items manually with the following list (created manually):

//Combo has processorId = Filter1
//Combo as parameterId = Mode

reg FILTER_MODES = [
    "Biquad LP",
    "Biquad HP",
    "Low Shelf EQ",
    "High Shelf EQ",
    "Peak EQ",
    "BiQuad LP Rez",
    "SVF LP",
    "SVF HP",
    "Moog LP",
    "1 Pole LP",
    "1 Pole HP",
    "SVF Notch",
    "SVF BP",
    "Allpass",
    "Filter mode",
    "Ladder 4Pole LP",
    "Ring Mod"
];
Combo.set("items",FILTER_MODES.join('\n'));

from the interface the combo selection doesn't set the correct value for the corrispondent filter. Items are correctly listed as the array order. Index order seems to change every time I compile.
Any idea ?
Thank you.