This can further be customized by adding transition-timing-function, to calculate intermediate values, and transition-delay, to delay the start of the animation.ĬSS transitions are good for simple interactions, such as changing the background color or moving an element to a new location. With this rule on the element, the background color would take three seconds to change, gradually changing from black to white, going through shades of gray. An example would be changing a background color from black to white over a period of time. Instead of applying a style immediately (without transitions), it could be applied gradually over a defined acceleration curve using customization rules. CSS TransitionsĬSS transitions provide a way to control how fast a change in CSS property is applied to an element. Below are some key technologies to keep in mind when implementing animations. With JavaScript, HTML5, CSS3 and many other languages becoming standard across most major user agents that a website receives traffic from, using these tools wholesale is becoming increasingly feasible. The classic web animations of movement, scaling, rotation and even color change are easily done in After Effects and serve as an instantly generated requirements document (or video or GIF) for the animations to be implemented. The ball is animated using After Effects to slowly roll to the middle, pause for a second, and then slowly accelerate to exit the viewport. Demonstration of an animation done using After Effects.Ĭonsider the red ball above. In the scope of the web, it provides a platform for ideas to be shared. It can provide an endless number of post-production effects for an image or video. What we can create with After Effects is limited only by our imagination. The video is used to see the overall picture, while the reference table provides the minute details that make or break the animation interaction. Together, the demo video and the reference table give the development team a good baseline for how to implement the animation. It is the de facto tool used by many designers to communicate ideas to a team by exporting the animation layers into an easy-to-visualize sample video, with a reference table of the animation start and end times to accompany it. After Effects is an industry-standard product from Adobe used by graphic and motion designers to key, compose and track animations.
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