Good afternoon everyone. There is no way I can make an inner and outer shadow for such a figure. I tried to create more rectangles with shadows applied, but the masks were cut off.

import UIKit

final class LoadingViewController: UIViewController {

    // MARK: - Dependencies
    var iterator: ILoadingIterator?

    // MARK: - Private properties
    private lazy var imageBackground = createImage()
    private lazy var shape = createShape()
    private lazy var gradient = createGradient()
    private lazy var viewLoaderDropShadow = createView()
    private lazy var viewLoader = createView()
    private lazy var shapeMask = createMask()
    private lazy var labelTitle = UILabel()

    // MARK: - Initializator
    init() {
        super.init(nibName: nil, bundle: nil)
    }

    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }

    // MARK: - Public methods
    override func viewDidLoad() {
        super.viewDidLoad()
        setupConfiguration()
        addUIView()
    }

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        setupLayout()
    }

    override func viewWillLayoutSubviews() {
        super.viewWillLayoutSubviews()
        // gradient.frame = viewLoader.frame
    }
}

// MARK: - Add UIView.
private extension LoadingViewController {
    /// Добавление элементов UIView в Controller.
    func addUIView() {
        let views: [UIView] = [
            imageBackground,
            viewLoaderDropShadow,
            viewLoader
        ]
        views.forEach(view.addSubview)
    }
}

// MARK: - UI configuration.
private extension LoadingViewController {
    /// Настройка UI элементов
    func setupConfiguration() {
        view.backgroundColor = FlatColor.Green.darkGreen

        viewLoader.layer.insertSublayer(gradient, at: 0)

        viewLoader.layer.cornerRadius = GlobalStyle.Radius.loader
        viewLoader.clipsToBounds = true
        viewLoader.layer.mask = shape

        viewLoaderDropShadow.layer.cornerRadius = GlobalStyle.Radius.loader
        viewLoaderDropShadow.backgroundColor = UIColor.red
        viewLoaderDropShadow.layer.shadowOpacity = 1
        viewLoaderDropShadow.layer.shadowRadius = 2
        viewLoaderDropShadow.layer.shadowColor = UIColor.red.cgColor
        viewLoaderDropShadow.layer.shadowOffset = CGSize(width: 10, height: 10)
        viewLoaderDropShadow.clipsToBounds = true
        // viewLoaderDropShadow.layer.mask = shapeMask

//
//      maskForShadow.backgroundColor = UIColor.green
//      maskForShadow.layer.shadowOpacity = 1
//      maskForShadow.layer.shadowRadius = 2
//      maskForShadow.layer.shadowColor = UIColor.red.cgColor
//      maskForShadow.layer.shadowOffset = CGSize(width: 2, height: 2)
//      maskForShadow.layer.mask = mask

        // Настройка UILabel 'Название потока'
//      labelTitle.text = "Repair flow."
//      labelTitle.font = UIFont.systemFont(ofSize: 16)
//      labelTitle.translatesAutoresizingMaskIntoConstraints = false
    }
}

// MARK: - Add constraint.
private extension LoadingViewController {
    /// Верстка элементов UI.
    /// - Note: Добавление constraints для UIView элементов.

    func setupLayout() {
        let sizeLoader = GlobalStyle.Height.self
        NSLayoutConstraint.activate([
            imageBackground.topAnchor.constraint(equalTo: view.topAnchor),
            imageBackground.bottomAnchor.constraint(equalTo: view.bottomAnchor),
            imageBackground.leftAnchor.constraint(equalTo: view.leftAnchor),
            imageBackground.rightAnchor.constraint(equalTo: view.rightAnchor),

            viewLoader.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            viewLoader.centerYAnchor.constraint(equalTo: view.centerYAnchor),
            viewLoader.widthAnchor.constraint(equalToConstant: sizeLoader.heighLoader),
            viewLoader.heightAnchor.constraint(equalToConstant: sizeLoader.heighLoader),

            viewLoaderDropShadow.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            viewLoaderDropShadow.topAnchor.constraint(equalTo: viewLoader.bottomAnchor, constant: 10),
            //viewLoaderDropShadow.centerYAnchor.constraint(equalTo: view.centerYAnchor),
            viewLoaderDropShadow.widthAnchor.constraint(equalToConstant: sizeLoader.heighLoader),
            viewLoaderDropShadow.heightAnchor.constraint(equalToConstant: sizeLoader.heighLoader),

        ])
    }
}

// MARK: - UI Fabric.
private extension LoadingViewController {
    func createImage() -> UIImageView {
        let image = UIImage(named: "Images/Backgrounds/backgroundMask")
        let imageView = UIImageView(image: image)
        imageView.contentMode = .scaleAspectFit
        imageView.alpha = 0.5
        imageView.translatesAutoresizingMaskIntoConstraints = false

        return imageView
    }

    func createView() -> UIView {
        let view = UIView()
        view.translatesAutoresizingMaskIntoConstraints = false
        return view
    }

    func createGradient() -> CAGradientLayer {
        let gradient = CAGradientLayer()
        gradient.frame = CGRect(
            x: 0,
            y: 0,
            width: GlobalStyle.Height.heighLoader,
            height: GlobalStyle.Height.heighLoader
        )
        gradient.startPoint = CGPoint(x: 0.5, y: 0.5)
        gradient.endPoint = CGPoint(x: 1, y: 0.5)
        gradient.colors = GradientColors.angularYellowGradient
        gradient.type = .conic
        return gradient
    }

    func createShape() -> CAShapeLayer {
        let layer = CAShapeLayer()
        let path = UIBezierPath(rect: CGRect(
            x: 0,
            y: 0,
            width: GlobalStyle.Height.heighLoader,
            height: GlobalStyle.Height.heighLoader
        ))
        let maskPath = UIBezierPath(rect: CGRect(
            x: (GlobalStyle.Height.heighLoader - GlobalStyle.Height.heightMask) / 2,
            y: (GlobalStyle.Height.heighLoader - GlobalStyle.Height.heightMask) / 2,
            width: GlobalStyle.Height.heightMask,
            height: GlobalStyle.Height.heightMask
        ))
        path.append(maskPath)
        path.usesEvenOddFillRule = true
        layer.path = path.cgPath
        layer.fillRule = .evenOdd
        return layer
    }

    func createMask() -> CAShapeLayer {
        let layer = CAShapeLayer()
        let path = CGMutablePath()
        path.addRect(CGRect(
            x: (GlobalStyle.Height.heighLoader - GlobalStyle.Height.heightMask) / 2,
            y: (GlobalStyle.Height.heighLoader - GlobalStyle.Height.heightMask) / 2,
            width: GlobalStyle.Height.heighLoader,
            height: GlobalStyle.Height.heighLoader
        ))
        layer.path = path
        layer.fillRule = .evenOdd
        return layer
    }
}
// MARK: - UI Action.

// MARK: - Render logic.