I made this illusion based on the Tusi motion method, which takes his name from Nair al-Din Tusi, a Persian astronomer from the 13th century. The principle established by Tusi states that: If a circle with diameter A rotates on the inner boundary of a circle with diameter 2A, then a point on the circumference of the inner circle traces a straight line. As you can see, any ball in the inner circumference is following a perfect linear movement. This is created with 8 Containers where the balls move linear in a loop. The delay between balls must be always the same as the speed of the animation. An ease-in-out cubic-bezier(.4, 0, .6, 1) animation is required to get the circular shape.

This is the final version of a panic product for a test where I study.

Red light / Green light game from Squid Game

Registration form with Progress Steps

A very basic content shelf component commonly used by TV apps such as Hulu, Youtube, HBO etc. This component uses a fixed focus model where the items in the shelf move into place using key press interactions. Note: Must click the canvas to enable key presses, this seems to be a common restriction with most prototyping tools when building key press focus interaction models.

A Sample project used in various official Proto.io tutorial videos. It contains various design patterns commonly found in popular mobile apps.

The project includes 1. snap horizontal scrollable container (screen 2) 2. button enabled when text field is filled (screen 5) 3. Sign in validation using code (screen 7) Credits to https://www.sketchappsources.com/contributor/pirogovoe for the design!!