Extension to add a cool 3D floating effect to any UIView.

UIView+3DFloatingEffect.swift

extension UIView {
    func add3DFloatingEffect(withDepth depth: Double = 1 / 12, duration: Double = 5) {
        let depthAngle = depth * .pi
        let rotationAnimationY = CABasicAnimation(keyPath: "transform.rotation.y")
        rotationAnimationY.fromValue = NSNumber(floatLiteral: -1 * depthAngle)
        rotationAnimationY.toValue = NSNumber(floatLiteral: depthAngle)
        rotationAnimationY.duration = duration
        rotationAnimationY.repeatCount = Float(Int.max)
        rotationAnimationY.autoreverses = true
        rotationAnimationY.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
        layer.add(rotationAnimationY, forKey: "rotationAnimationZ")

        let rotationAnimationX = CABasicAnimation(keyPath: "transform.rotation.x")
        rotationAnimationX.fromValue = NSNumber(floatLiteral: -1 * depthAngle)
        rotationAnimationX.toValue = NSNumber(floatLiteral: depthAngle)
        rotationAnimationX.duration = duration
        rotationAnimationX.repeatCount = Float(Int.max)
        rotationAnimationX.autoreverses = true
        rotationAnimationX.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
        rotationAnimationX.timeOffset = duration / 2
        layer.add(rotationAnimationX, forKey: "rotationAnimationX")
        
        layer.transform.m34 = -1/500
        layer.anchorPoint = CGPoint(x: 0.5, y: 0.5)
    }
}