meshes.js

const Scene = require('Scene');
const FaceTracking = require('FaceTracking');
const Diagnostics = require('Diagnostics');
const Reactive = require('Reactive');

Promise.all([
    Scene.root.findByPath('**/meshes0/*'),
]).then((result)=>{
    let meshes = result[0];

    let transform = FaceTracking.face(0).cameraTransform;

    let maxSmooth = 350;
    let maxDelay = 0.5;

    for (let index = 0; index < meshes.length; index++) {
        let mesh = meshes[index];

        let smoothBy = (maxSmooth/meshes.length) * index + 1;
        let delayBy = (maxDelay/meshes.length) * index + 1;
        
        mesh.transform.x = Reactive.expSmooth((transform.x.delayBy({milliseconds: delayBy})), smoothBy);
        mesh.transform.y = Reactive.expSmooth((transform.y.delayBy({milliseconds: delayBy})), smoothBy);
        mesh.transform.z = Reactive.expSmooth((transform.z.delayBy({milliseconds: delayBy * 10})), smoothBy);

        mesh.transform.rotationX = transform.rotationX;
        mesh.transform.rotationY = transform.rotationY;
        mesh.transform.rotationZ = transform.rotationZ;
        
    };
});