Portamento control using knobs and button

[duma]

So I check a previous portamento question or forum and I received this code. I wanna know hot to alter it to work by using a knob to control how much slide a sound has when gliding to another note and to have an on & off switch

/** Portamento & Glide Example

This example shows how to implement a monophonic synth behaviour by only keeping a single
voice alive and retuning the start note to the last played note number using a pitch fade event.

It also demonstrates the usage of the fix object factory which can be considered as a best practice
for anything related to voice logic.

*/
Content.makeFrontInterface(600, 600);

// This is a constant glide time, but you can simply make this dynamic and react to pitch delta / 
// velocity or a UI element.
const var FADE_TIME = 100;

// Usually you would put this into a script processor of a sound generator
// but for demonstrating purposes we tuck all of this into the main Interface script
Synth.deferCallbacks(false);

// A fix object factory is created once with a JSON object as prototype and allows you to create
// data structures with a fixed memory layout and named properties (hence the name).
const var f = Engine.createFixObjectFactory({
	"id": -1,
	"noteNumber": -1,
	"time": 0.0
});

// Create a stack that will hold the actively played notes.
const var noteStack = f.createStack(256);

// This will store the note information of the first note (and all further notes
// will use this a reference to figure out the pitch factor).
reg startNote = f.create();

// Create a single object with the prototype layout that is used
// for inserting / removing elements from the stack. We'll modify this
// object and then pass it to the stack so it can do native comparison
// functions etc.
reg scratchObject = f.create();

// This function will determine which note to play if you release
// a key while another one is still held.
inline function findNewNote()
{
	// We'll pick the simplest logic possible:
	// just pick the first match that comes along your way
	// You can implement a more fine-grained logic here (eg. use the oldest note,
	// use the lowest note, etc).
	for(s in noteStack)
	{
		// the syntax is this weird so you can simply swap the condition
		// for another one...
		if(true) 
		{
			scratchObject.noteNumber = s.noteNumber;
			scratchObject.id = s.id;
			scratchObject.time = s.time;
			break;
		}
	}
	
	updatePitch();
}

// Instead of playing new notes, this function will bend the original note to whatever
// pitch is currently played...
inline function updatePitch()
{
	local delta = scratchObject.noteNumber - startNote.noteNumber;
	Synth.addPitchFade(startNote.id, FADE_TIME, delta, 0);
}

[Lindon]

@duma like it says put this in a script processor, add a knob for your slide time, and use its value wherever FADE_TIME is being used....

[duma]

@Lindon in this script processor?

[duma]

@duma it just made a whole new interface and im lost please tell me exactly what I should do

[Lindon]

@duma go do Daves bootcamp course.

[duma]

@Lindon I've done it fully, please just tell me what I need to do

[Lindon]

@duma if you dont understand what script processors are, how they work, how to use them then you need to go find that out first.

[duma]

@Lindon Dude, all Im asking for you to do is help me and guide me, im asking nicely

[Lindon]

@duma I am helping you and guiding you.

[David Healey]

@duma said in Portamento control using knobs and button:

Content.makeFrontInterface(600, 600);

Remove this

[duma]

@David-Healey done but It still opens an interface way smaller

[David Healey]

@duma All MIDI processors have an interface. These blog posts might help:
https://audiodevschool.com/exploring-hise-built-in-factory-scripts/
https://audiodevschool.com/hise-community-scripts-and-snippets/

[duma]

@David-Healey Alright I understand how am I going to connect this code to a knob on my main interface and a button aswell