PolygonImageComposable.kt

@Composable
fun PolygonImageComposable(modifier: Modifier) {
    val deltaXAnim = rememberInfiniteTransition()
    val dx by deltaXAnim.animateFloat(
        initialValue = 3f,
        targetValue = 10f,
        animationSpec = infiniteRepeatable(
            animation = tween(4000, easing = LinearEasing),
            repeatMode = RepeatMode.Reverse
        )
    )

    CoilImage(
        data = "myAwesomeImage.jpg",
        contentDescription = "Awesome Image",
        contentScale = ContentScale.Crop,
        modifier = modifier
            .size(width = 300.dp, height = 200.dp)
            .graphicsLayer {
                shadowElevation = 4.dp.toPx()
                shape = PolyShape(dx.toInt(), 100.dp.toPx())
                clip = true
            }
    )
}