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USDZ: Hide Object on Start

This is an example from our Everywhere Actions. The following script hides an object on start on Android and on iOS AR

export class HideOnStart extends Behaviour implements UsdzBehaviour {

    start() {
        this.gameObject.visible = false;
    }

    createBehaviours(ext, model, _context) {
        if (model.uuid === this.gameObject.uuid)
            ext.addBehavior(new BehaviorModel("HideOnStart_" + this.gameObject.name,
                TriggerBuilder.sceneStartTrigger(),
                ActionBuilder.fadeAction(model, 0, false)
            ));
    }

    beforeCreateDocument() {
        this.gameObject.visible = true;
    }

    afterCreateDocument() {
        this.gameObject.visible = false;
    }
}