I'm using jetpack compose in kotlin for my Android project. I am trying to animate planets orbiting around a center, which works perfectly. The animation starts at a button push and will continue for as long as the user wants. But I want to start the animation with an ease-in instead of a hard-jerk go.

Here is my animation code. I am using rememberInfiniteTransition on animateFloat to animate numbers from 0 to 360 (angles for the planets). I use baseRotation to draw the planets in the proper locations.

val infiniteTransition = rememberInfiniteTransition(label = "")
val baseRotation by infiniteTransition.animateFloat(
    initialValue = masterAngle,
    targetValue = masterAngle + 360f,
    label = "",
    animationSpec = infiniteRepeatable(
        animation = tween(
            durationMillis = 3000,
            easing = EaseInCubic
        )
    )
)


As you can see the animation stops when it reaches the target value and then eases in for the next iteration. This happens every time. I would like to do the ease in for only the first iteration of the infinite transition.

I'm surprised that I can't find any information on this common situation. Any ideas how to do an infinite animation with an ease in for only the first time?