From a UX perspective, transformation is an effective way to show users their status in relation to a goal ( Visibility of System Status). This is especially helpful when the progression between UI elements is linked to a process with a start and a finish (e.g., downloading a file).
The relationship between motion design and the UX of digital products is rapidly maturing. A principled approach to motion prevents undue reliance on the fleeting utility of trends, tools, and techniques. Better still, it spans the divide between the abstract motion of elements on 2D screens and the perception of movement in a 3D world.
When UI elements materialize within an interface, they need a clear point of origin that links to an element already on-screen. If elements simply burst or fade into existence out of nowhere, users lack the context needed for confident interactions.
In 2D space, there is no depth, and UI elements may only move along the X or Y axis. Overlay creates the illusion of foreground/background distinction in the 2D space of UIs. By simulating depth, overlay allows elements to be hidden and revealed according to user needs.
Interactive experiences demand motion in all its spry and subtle forms. When the principles of motion design are upheld, even the most rudimentary UI elements become sophisticated agents of human communication. When the principles are ignored, movement embodies characteristics not found in the natural world. No amount of aesthetic splendor can overcome the resulting clumsiness.
Here, the blue slider’s position controls the opacity of the background mask, the spread of the glow effect around the lightbulb, and the numerical value of the light intensity scale. (Ayoub Kada)
Information hierarchy is an important consideration when employing overlay. For example, the first thing users should see in a note-taking app is a list of their notes. Then, overlay could be used to unveil secondary options for each message-like Delete or Archive.
Representations of value (numerical, text-based, or graphic) are abundant in digital interfaces, appearing in products ranging from banking apps to personal calendars to eCommerce sites. Because these representations are tied to datasets that exist in actuality, they are subject to change.
Obscuration works the same way. It presents users with an interface that calls for interaction while simultaneously revealing a hint of the screen to follow. Navigation menus, passcode screens, and folder/file windows are common examples.
Dimensionality makes it seem as though UI elements have multiple interactive sides, just like objects in the physical world. The behavior is achieved by making elements appear as if they are foldable, flippable, floating, or bestowed with realistic depth properties.
Value change communicates the dynamic nature of data representations and informs users that data is interactive and may be influenced to some extent. When values are introduced without motion, users’ willingness to engage with the data decreases.
Dolly: Dolly occurs when the user’s point of view gets closer to (or further from) a UI element. Imagine a person with a camera walking up to a flower to get a closer shot.
Zoom: With zoom, the user’s point of view and the UI element remain fixed, but the element increases (or decreases) in size within the user’s screen. Now imagine that the person stays put and uses the camera’s zoom feature to make the flower appear larger.
Masking is the strategic revealing and concealing of parts of a UI element. By altering the shape and scale of an element’s perimeter, masking signals a change in utility while allowing the element itself to remain identifiable. For this reason, detailed visuals like photographs and illustrations are ideal candidates.
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