How to apply a shader on cameras (i.e. camHUD) in Hscript?

[MAZ12211]

Doing either PlayState.instance.camHUD.shader or PlayState.instance.camHUD.setFilter results in to the same error

// imports
class VignettePlayState extends Module {
	var vignetteShader:FlxRuntimeShader;

	override function onSongLoaded(e) {
		super.onSongLoaded(e);
		vignetteShader = ScriptedFlxRuntimeShader.init('VignetteShader');
		if (PlayState.instance != null) {
			PlayState.instance.camHUD.shader = vignetteShader;
			vignetteShader.setIntensity(1.0);
			vignetteShader.setReach(1.0);
		}
	}

	override function onUpdate(elapsed:Float) {
		super.onUpdate(elapsed);

		var shaderInput:Float = elapsed * 2;
		if (vignetteShader != null) vignetteShader.scriptCall('update', [shaderInput]);
	}
}

The shader haxe code if it's necessary

// imports
class VignetteShader extends FlxRuntimeShader
{
    public var intensity:Float = 0.0;
    public var reach:Float = 0.0;

	public function new()
	{
		var fragText:String = Assets.getText(Paths.frag('vignette'));
		super(fragText);
	}

	public function setIntensity(value:Float):Void {
		this.intensity = value;
		this.setFloat('uIntensity', this.intensity);
	}

	public function setReach(value:Float):Void {
		this.reach = value;
		this.setFloat('uReach', this.reach);
	}

	public function update(elapsed:Float):Void
	{
		setIntensity(this.intensity + elapsed);
		setReach(this.reach + elapsed);
	}

	public function reset()
	{
		setIntensity(0.0);
		setReach(0.0);
	}
}

[KadePleaseHelpMe]

Don't believe this is possible in base flixel. I know that Codename Engine uses a custom version of Flixel which allows for camera shaders, but again that's their own custom version of flixel.

[KadePleaseHelpMe]

if you're using source code, you can go into the .haxelib folder and go to flixel to manually edit stuff if you REALLY want to or see a need to. Otherwise, yeah I think you're at a dead end. You could always just center a big vignette PNG (3140x2160) and just scale it down over time for more intensity

[MAZ12211]

Oh yeah! I could just use a png for it as a last resort
It would be painful if I were to make an event for it with intensity and duration though 🙇

[KadePleaseHelpMe]

not too bad actually
I'm not sure how to make custom events for V-Slice (since it's not on the wiki), but if you look through the chart editor source code and find where events are stored, I'm sure that some copy-n-paste shenanigans would be possible

[MAZ12211]

One last thing before I close the discussion
Why 3140x2160?

[KadePleaseHelpMe]

3840x2160* my bad anyway here's me explaining it
sorry for bad quality

vignettetutorial.mp4