UI Animation principles and practice with GSAP
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Animate this! Principles and practice in UI animation Tuesday, March 21, 17
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Transcript of UI Animation principles and practice with GSAP
Animate this! Principles and practice in UI animation
Tuesday, March 21, 17
Who the heck are you? I’m Mario Noble
• Your friendly neighborhood SCWDD Organizer
• Web Designer / Front end developer
• UX Designer
• Jack of all digital trades
• SoCal cliche
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Why Animation in UI?
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Movement compels attention.
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Too much movement distracts.
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UI animation is a means to an endnot a means unto itself.
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Focus
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Focus
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Orientation
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Orientation
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Orientation
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Feedback
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Feedback
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Branding
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Branding
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Animation is the depiction of change over time.
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Animation is the depiction of change over time.
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12 Basic Principles of Animation
https://vimeo.com/93206523
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A few key points...
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Attention is a resource.
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A rule of thumb is to keep animations between 200-500ms.
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Animations can occur not only in transition on screen...
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...and off screen...
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...but also in place.
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Eye flow...
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Eye flow...and sequencing are key.
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Keep things consistent.
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Keep things consistent.
except where it makes sense to not be...
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Remember to integrate animation into your design process just as you would the use of color.
★ Business and user priorities
★ IA
★ Storyboarding
★ Prototypes
★ Styleguides
★ User research
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Keep Accessibility in mind.
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Execution - The nitty gritty of making it happen.
★CSS transitions and animation
★ jQuery
★Velocity.js
★Greensock (aka GSAP)
★Javascript Animation API
★Framework specific libraries (Angular, Polymer, React, native iOS/Android, etc.)
★DIY custom code
★ I wish I could say Flash...
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There is no one right way.Use whatever works for you best.
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We’re choosing GSAP to demo because it’s:
★Mature
★Platform agnostic
★Browser stable
★Plays nice
★Consistent handling of transforms and SVGs
★Full featured
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GSAP “Ecosystem”
★TweenLite
★TweenMax *
★TimelineLite
★TimelineMax
* TweenMax is the one you want to use starting out since it all the others built in.
Optimize as needed.
Plus various Plugins and Extensions
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A word about their licensing structure.
It’s free if you do not sell products or services made with it to multiple end users. A single client is fine. By the way, I’m not affiliated with the company in any way...
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GSAP Basics (first we’ll tell, then we’ll show)
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TweenMax.method(target, duration, {vars}, position);
Example: TweenMax.to(box, 0.5, {x: 50, y:100});Position is used in methods like staggerFrom
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Targeting
★ Can use any class or html tag (i.e. .my-class - uses queryselectorall)
★ getElementbyID
★ jQuery ($)
★ a var or array of references
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Duration
★ Usually in seconds
★ Can be frames
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Vars
★ Can be single and multiple css properties - properties should be converted from
using hyphens to camel case (e.g. border-radius is borderRadius)
★ Also uses special properties like easing, repeat, delay, timeline controls
★ GSAP callbacks and custom callbacks
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Position
★ Sets when the tween occurs in the timeline in terms of seconds or frames.
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also...
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Easing
★ Default
★ Out of the box
★ Custom
★ Let’s check out the visualizer
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Timeline fun
★ Reversing
★ From versus To
★ Staggers (aka offsets)
★ Yoyo
★ Timescale
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Multiple Animations
★ using new
★ standalone animations
★ added / chained animations
★ modifying multiple animations at once
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OK, let’s try this.
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Summary
★ Form follows function
★ Focus, Orientation, Feedback, Branding
★ Integrate Animation into the overall business, design and dev process
★ Animation frameworks will target change in target properties and their sequence
over time
★ Realistic animation often uses some form of easing
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Resources
★ Designing Interface Animation
★ The Illusion of Life
★ Greensock GSAP site
★ I Hate Tomatoes
★ Velocity JS
★ Mozilla’s JS Animation API
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Q&A / Sharing
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