如何在SwiftUI中为角度(度数: 0)在rotationEffect上绘制实时阴影？

ZStack {
    // Your view here
    
}.rotationEffect(.degrees(0))

ZStack {
    // Your view here
    
}.rotationEffect(.degrees(0))
.shadow(color: Color.black.opacity(0.4), radius: 10, x: 0, y: 0)

@State private var angle: Double = 0

ZStack {
    // Your view here
    
}.rotationEffect(.degrees(angle))
.shadow(color: Color.black.opacity(0.4), radius: 10, x: 0, y: 0)
.overlay(
    AngularGradient(gradient: Gradient(colors: [.clear, .black]), center: .center, startAngle: .degrees(angle), endAngle: .degrees(angle+1))
)

Button(action: {
    withAnimation {
        self.angle += 1
    }
}) {
    Text("Rotate")
}