Motion Library · Easing
Ease-out vs ease-in
Ease-out motion starts fast and decelerates into place; ease-in starts slow and accelerates away. In interface and title animation, entrances almost always ease out — the element arrives with energy and settles — while ease-in is reserved for exits and for a camera diving into something. Linear motion, with no easing at all, reads as mechanical and is almost never used for entrances.
When to use it
Ease out every entrance: text landing, cards popping, panels sliding in. Ease in only when something leaves the frame or the camera commits into a dive. Save linear for constant-rate drifts, counters, and conveyor motion where mechanical is the point.
Common mistakes
Easing in on an entrance (it feels like the element is being dragged); linear tweens on text reveals; using one default ease everywhere so every move has the same personality.
How Impractical uses it
Impractical carries five named house curves. Its entrance default, launch-out, covers about 80% of its distance in the first 20% of its duration — arrivals feel decisive. Linear is banned for entrances and exits in its pacing rules; it is allowed only for drifts and count-ups.