smooth-state-animation

You can create smooth state transitions by interpolating numeric state values over a configurable duration, tracking animation state, start and target values, and applying cubic easing within a delta time update loop to eliminate abrupt UI jumps.

To interpolate 2D positions, rotations, scales, and opacity without jank, apply a reusable interpolation pattern that uses cubic or quadratic easing functions to smoothly progress values between start and target states over time.

Delta time interpolation works by tracking animation state, duration, and target values, then calculating the eased progress between start and target values per frame based on the elapsed delta time to produce smooth motion graphics.

Yes, you can use this state transition pattern for fading in a panel while simultaneously moving it, as it supports interpolating multiple numeric values like opacity and 2D positions concurrently to reduce visual jank.

Common anti-patterns when implementing easing functions for state transitions include failing to track animation state accurately, ignoring delta time in the update loop, and abruptly jumping to target values instead of smoothly interpolating progress.