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  1. Can't i use translate3d in my tweens? I see x and y for translate, but no translate3d!
  2. Recently I found a background color animation was failing in IE8, this was because I was reading the color to tween to from a hidden div and IE8 was returning the value as 'whitesmoke'. It's easy enough to use a lookup table as here: http://stackoverflow.com/questions/1573053/javascript-function-to-convert-color-names-to-hex-codes But might be nice if this was handled internally by the CSS plugin.
  3. Hello, I'm new here. I'm redesigning my personal website and I wanted to make the current position of the social icons change to be part of the header once they are scrolled over. I wanted some type of animation timing effect that was triggered by the position on the page. This is my first time playing with Tween and Timeline, so I'm really a novice as to how things work. I've been playing with it, but all the extra effects will most likely be removed once I figure out exactly what it is I need and whether or not Tween can handle it. So here it is: http://marlonstevenson.com
  4. Hi all, I'd like to know if its possible to use TweenMax/Lite with a predefined CSS rule, something like this: .someClass { left: 20px; top: 50px; } TweenLite.to( myDomElement, 0.5, { someClass }); In this way I could lay out a bunch of scenarios and animate to them as needed. Thanks!
  5. I've been having an issue using TweenMax and setting the css properties of an element. It seems to be automatically picking out a z-index and applying it to the style of the element. I'm assuming this is something that was added as a quick fix for performance or css3 animation flickering as backface-visibility is also added without me requesting it (which is a whole different issue and really bogs down performance on iOS Safari). The code is: TweenMax.set(element, {css:{y:0}}); This ends up being: <div class="header" style="z-index: 0; -webkit-backface-visibility: hidden; -webkit-transform: translate(0px, 0px); ">...</div> The problem is the z-index on the style attribute is overriding the z-index i have applied in my stylesheet. And as it sets the value to 0, my element just disappears. I can manually set the z-index in the tween and fix that issue but i shouldn't have to worry about updating that value anywhere other than my css. Is there something that I'm applying improperly? Maybe another parameter that will remove this default behavior (tried autoRound: false but didn't work)? If this is the intended behavior might i suggest getting the element's z-index and applying that value to the style attribute so to not override it to 0. Thank you for this awesome platform. I've been using greensock for such a long time and so glad it made it to JS.
  6. Hello, I love your products and everything Greensock stands for. Your products are top-notch, and the customer service is as good as the Kinko's customer service is bad. GreenSock customer service is like "Bizzaro Kinko's Customer Service." In other works: GreenSock - "Totes Awesome Sauce" Kinko's - "The Hangover 2 & Indiana Jones 4, kind of awful" I am trying to come up with the most efficient and "zazzy-licious" way to put in the background of one of my website page, the scrolling code that you see on computer screens in the background of movies and tv shows. I'm not sure if I want just pure binary (1's and 0's) or letters and numbers. I figured that I would find about 500 ka-trillion Google results showing different ways of doing this in various languages, but alas, I didn't really find much of anything. I'm using the Greensock Javascript libraries (v.12) and the latest version of Raphael.Js. I don't really need anyone to show me how to do this, by providing a working example (at least, not yet). I'm really looking for a broad outline of the steps I would need to take to accomplish this task in the most code efficient and least taxing burden on the browser way possible. Any help would be greatly appreciated. Thanks, Sweet J
  7. Hi there, I'm having some trouble with css object. I want to move an image along a bezier curve. I create the image like this: img = new Image(); img.src = "car.png"; img.xpos=275; img.ypos=350; And then I try to move it along the bezier curve in canvas. In the function "loop" I draw the image continuesly. Here is the code for the bezier: ctx = document.getElementById("can").getContext("2d"); TweenLite.ticker.addEventListener("tick",loop); TweenMax.to(img, 4, {css:{bezier:{values:[{xpos:100, ypos:250}, {xpos:300, ypos:0}, {xpos:500, ypos:400}], autoRotate:true}}, ease:Power1.easeInOut}); But it does nothing. When I remove the css object and also autoRotate attribute it works. The working version of that line is here: TweenMax.to(img, 4, {bezier:{values:[{xpos:100, ypos:250}, {xpos:300, ypos:0}, {xpos:500, ypos:400}]}, ease:Power1.easeInOut}); I don't know how to fix it because if I try this with an <img> element it goes well also the first way. Could you somehow tell me where I made a mistake? I need to do this with an image created during process because I draw the images in canvas. Not just like this:<img src="car.png"> Thanks
  8. Hi! I'm having a problem with a webpage. It contains 6 elements that are animated via css for :hover behaviours: .mySel{ -xx-transform: scale(0.8); } .mySel:hover{ -xx-transform: scale(1); } On intro, I need to tween these elements' y position individually, so I use TweenLite: TweenLite.to(this,1,{css:{y:50}}); Problem is, when my tween finishes, the tweened elements have inline styles overriding my :hover behaviour: -webkit-transform: matrix(0.8, 0, 0, 0.8, 0, 0); I see why jack did this but I'm open to manually resetting inline styles onComplete, but I have no way of using TweenLite to do so. I'll have to deal with vendor prefixes manually. I was wishing for TweenLite.to(this,0,{css:{scale:"" or scale:"none" or scale:"auto"}}) to reset the property but no dice... Can someone help me in any way?
  9. Hello, I love GreenSock, it's a phenomenal product. I am a Flash Developer migrating to HTML, Canvas, CSS, and Javascript web designing. The Javascript versions are excellent. The one challenge I am having is trying to make the CSS 3D Transformations work. I looked at the demos of how powerful these transformations can be at: http://www.greensock.com/transitions/ http://www.greensock.com/css3/ and the "CssPlugin" section of your documentation at: http://api.greensock.com/js/ But, unfortunately I see a whole lot of small snippets of code (i.e. the trailer for a really awesome movie that I can't wait to see), but I would really like to see the whole html page with the css and javascript included (i.e. the whole "unrated, director's cut with alternate endings and commentary.") After searching through the GreenSock forums I found this link that the great Carl Schooff posted some downloadable examples of CSS Transformations: http://forums.greensock.com/topic/6230-how-to-tween-css3-transform-properties/ What I'm trying to say, is I would really appreciate it, if it were a little easier to figure out how to use these powerful tools to the most. Thanks, for viewing & best wishes, J
  10. I have a button which inverts the colors on my website. It utilizes a plugin called rgb color - http://www.phpied.co...-in-javascript/ to get the color value of all dom elements, and invert them. I'm doing that with the code below: invertColors: function(){ var colorProperties = ['color', 'background-color']; //iterate through every element $('*').each(function() { var color = null; for (var prop in colorProperties) { prop = colorProperties[prop]; if (!$(this).css(prop)) continue; //if we can't find this property or it's null, continue color = new RGBColor($(this).css(prop)); //create RGBColor object if (color.ok) { //good to go, build RGB var element = $(this); $(this).css(prop, 'rgb(' + (255 - color.r) + ', ' + (255 - color.g) + ', ' + (255 - color. + ')'); //subtract each color component from 255 } color = null; //some cleanup } //end each for prop in colorproperties }); //end each } //end invert colors What I'd like to do is rather than just flip the color, tween it. I'm curious to try the greensock tweening engine. So supposedly, I should be able to make a call something like this: TweenLite.to(element, 1, {css:{prop:'rgb(' + (255 - color.r) + ', ' + (255 - color.g) + ', ' + (255 - color. + ')' }, ease:Power2.easeOut}); but this is not working (no errors are thrown), so I'm not sure what I'm doing wrong. Anyone have any ideas for how to get this working, or what the proper way to tween all of these color properties would be?
  11. Note: This page was created for GSAP version 2. We have since released GSAP 3 with many improvements. While it is backward compatible with most GSAP 2 features, some parts may need to be updated to work properly. Please see the GSAP 3 release notes for details. Update: don't miss our guest post on css-tricks.com, Myth Busting: CSS Animations vs. JavaScript which provides some additional data, visual examples, and a speed test focused on this topic. Ever since CSS3 "transitions" and "animations" were introduced, they have been widely lauded as the future of animation on the web. It often seems like all the "cool kids" are talking about them. Should you jump on the bandwagon? Is JavaScript animation headed for extinction? How does the new GreenSock Animation Platform (GSAP) fare when it steps into the ring and faces off against the hyped-up tag-team of CSS3 transitions & animations? Does GSAP have the chops to hold its own? Let's find out. Ready...FIGHT! Performance One of the most common arguments in favor of CSS3 animations has been that they're hardware accelerated, thus outperform any JavaScript-based equivalent. The theory is that if you define your transitions/animations directly in css, the browser can worry about all the calculations behind the scenes and tap into hardware and native code to execute them. Sounds awesome. Unfortunately it's not quite that clean. Only certain properties are hardware-accelerated (like 3D transforms and opacity - mostly ones that don't affect document flow) and different browsers handle things differently. Plus every comparison we saw on the web pitted CSS3 transitions against jQuery, but GSAP is up to 20 times faster than jQuery. In our real-world tests, we saw drastic differences in performance among the various browsers and when tested head-to-head against GSAP, CSS3 animations were usually slower! Weird. As expected, however, 3D transforms were indeed faster under heavy stress although in most situations you'd never notice a difference. GSAP is extremely optimized. UPDATE (2015-01-05): There are some interesting (and surprising) performance implications of using CSS animations that aren't widely known. Here's a screencast that shows how Dev Tools doesn't report the overhead involved with CSS animations, some synchronization problems, and how they can drag down the main thread performance more than JS. To see a simple comparison for yourself, select the "Zepto" engine in the speed comparison because it uses CSS3 transitions for its animations, and then compare it to GSAP. Beware that the fps (frames per second) counter in the lower right corner isn't always accurate in some browsers (like recent versions of Safari) when using CSS3 transitions because requestAnimationFrame events [incorrectly] get dispatched even when the screen is clearly not being updated. So the animation may actually be running at a very jerky 10fps, yet 50+ requestAnimationFrame cycles are being triggered by the browser! This exposes another flaw in CSS3 transitions - there's no way to know when updates truly occur. There's only a "complete" event fired at the end of the transition/animation. If anyone knows how to get a more accurate fps counter in Safari while using CSS3 transitions, please let us know. Another performance issue to note in the speed comparison is the clumping that occurs with many engines (including Zepto) under heavy stress, where the stars begin pulsing out in rings instead of a nicely dispersed field. Even though GSAP was faster than CSS3 transitions in the majority of our real-world tests, it's still true that 3D transforms and opacity tweens are faster with CSS3 transitions and it's possible that browsers will be able to further tap into hardware acceleration in the future, so we'll call this round a tie. Feel free to build your own tests to see how things compare in your workflow. Performance winner: TIE Controls This is one of the major weak spots for CSS transitions (its "glass jaw" of sorts). Let's say you invest the time in writing a bunch of css for a whiz-bang animation and then you need to control the whole thing - good luck with that. It is virtually impossible. GSAP's object oriented architecture allows you to pause, resume, reverse, restart, or seek to any spot in any tween. Even adjust timeScale on the fly for slow motion or fastforward effects. Place tweens in a timeline with precise scheduling (including overlaps or gaps) and then control the whole thing just like it's a single tween. All of the easing and effects remain perfectly intact as you reverse, adjust timeScale, etc. (with CSS transitions, easing flip-flops upon reverse). You can even kill individual portions of a tween anytime (like if a tween is controlling both "top" and "left" properties, you can kill "left" while "top" continues). Put labels in a timeline to mark important spots and seek() to them anytime. Imagine trying to build the example below using CSS transitions. It would be virtually impossible. With GSAP, it's easy. In fact, all of the animation is done with 2 lines of code. Drag the scrubber, click the buttons below, and see how easy it is to control the sequenced animation. Controls winner: GSAP Tweenable Properties Both competitors can animate transforms (2D and 3D), colors, borderRadius, boxShadow, and pretty much every important property, but there's one key shortcoming of CSS - you cannot animate individual transforms distinctly! For example, try rotating an object and then halfway through that animation, start scaling it with a different ease and finish at a different time. Since all transforms (scaleX, scaleY, rotation, rotationX, rotationY, skewX, skewY, x, y, and z) are all mashed into one "transform" property, it's virtually impossible to handle them distinctly. GSAP not only works around this limitation, but it also allows you to do advanced things like animate along Bezier paths or do momentum-based motion (with ThrowPropsPlugin) or relative tweens or animate the scroll position or do directional rotation or physics-based motion, etc. Plus GSAP can animate any numeric property of any object, not just DOM elements. Do you really want to use one toolset (CSS) for animating DOM elements and then have to switch to a completely different toolset and syntax when you do canvas-based animation? GSAP handles both consistently. CSS transitions and animations just can't compete here. Tweenable properties winner: GSAP Workflow When you're creating fun and interesting animations, workflow is critical. You need to be able to quickly build sequences, stagger start times, overlap tweens, experiment with eases, leverage various callbacks and labels, and create concise code. It would be great to modularize your code by creating functions that each spit back an animation object (tween or timeline) which can be inserted into another timeline at a precise time. You need a flexible, powerful system that lets you experiment without wasting hours. GSAP wipes the floor with CSS transitions in this round. Anyone who has attempted an ambitious project with CSS3 transitions/animations will attest to the fact that they tend to get very cumbersome and verbose. Experimenting with timing and fine-tuning details can get extremely tedious especially when dealing with all the browser prefixes. GSAP CSS3 transitions = supported = unsupported Flexible object-oriented architecture that allows animations to be nested inside other animations as deeply as you want Supported Unsupported Concise code that doesn't require vendor prefixes Supported Unsupported Create sequences (even with overlapping animations) that auto-adjust as you insert/remove/change intermediate pieces of animation (makes experimenting MUCH easier) Supported Unsupported Accommodate virtually any ease including Bounce, Elastic, SlowMo, RoughEase, SteppedEase, etc. Supported Unsupported Animate things into place (backwards) with convenience methods like from() and staggerFrom() Supported Unsupported Callbacks for when an animation starts, updates, completes, repeats, and finishes reversing, plus optionally pass any number of parameters to those callbacks Supported Unsupported Place labels at specific times in a sequence so that you can seek() there (and/or insert animations there) Supported Unsupported Animate any numeric property of any JavaScript object, not just DOM elements (great for canvas-based animation). Supported Unsupported Workflow winner: GSAP Compatibility CSS transitions simply don't work in older browsers, even Internet Explorer 9. GSAP works in all browsers (although some particular features may be disabled, like 3D transforms in IE8). Once again, this round was no contest. GSAP can even do 2D transforms like rotation, scaleX, scaleY, x, y, skewX, and skewY all the way back to IE6 including transformOrigin functionality! Plus it works around scores of other browser issues so that you can focus on the important stuff. Safari's 3D transformOrigin bug? No problem. Firefox's flashing 3D elements bug? No worries. Inconsistency in IE's backgroundPosition values? GSAP has you covered. Vendor prefixes? Nah, GSAP adds 'em for you when necessary. Compatibility winner: GSAP Popularity CSS3 transitions have been talked about (and used) for years all over the web whereas GSAP is relatively new. It can't match CSS3 transitions' popularity. As clients start pushing for more aggressive animations and HTML5 games proliferate and operating systems become very JavaScript-friendly, the balance may very well shift quickly. For now, though, this round goes squarely to CSS transitions. Popularity winner: CSS3 transitions Conflict management What happens if a particular set of properties (like "left" and "top") are animating and then you need to redirect one of those to a different value (like "left" to 100px instead of 300px) using a different ease and duration? With CSS transitions, it's a very complex process. With GSAP, it's simple and automatic. In fact, there are several overwrite modes you can choose from. Conflict management winner: GSAP Support There are numerous places on the web where you can ask the community your CSS transitions-related questions, but GSAP has dedicated support forums where there's rarely a question that remains unanswered for more than 24 hours. GreenSock's forums are manned by paid staff (including the author of the platform), so you're quite likely to get solid answers there. Add to that the fact that GreenSock has a track record of being much more agile in terms of squashing bugs and releasing updates than browsers do for CSS3 transitions, so GSAP gets the upper hand here. Support winner: GSAP Expandability GSAP employs a plugin architecture, making it relatively easy to add features and custom animation properties but CSS transitions have no such equivalent. You're stuck with what the browsers decide to offer. In addition to CSSPlugin, GSAP already has plugins like ScrollToPlugin for scrolling to specific window or div scroll positions, BezierPlugin for animating along Bezier curves, ThrowPropsPlugin for momentum-based motion, and RaphaelPlugin, EaselPlugin, and KineticPlugin for those libraries (Raphael, EaselJS, and KineticJS). Plus there are physics-based plugins like Phyics2DPlugin and PhysicsPropsPlugin as well as a fun ScrambleTextPlugin for Club GreenSock members. More plugins are on their way, and you can create your own too. Expandability winner: GSAP Learning resources Again, the popularity of CSS3 transitions trumps anything GSAP could throw at it right now. There are lots of tutorials, videos, and articles about CSS3 transitions whereas GSAP is new to the game. GreenSock is being aggressive about putting together solid resources (like the Jump Start tour) and the community is crankin' out some great articles and videos too, but CSS3 transitions score the win in this round. Learning resources winner: CSS3 TRANSITIONS Price & license Both CSS3 transitions and GSAP are completely free for almost every type of usage. GSAP allows you to edit the raw source code to fix bugs (if that's something you need to do), but there's no way to edit the source code that drives CSS3 transitions. Then again, there's no special license required to use them either. If you plan to use GSAP in a product/app/site/game for which a fee is collected from multiple customers, you need the commercial license that comes with "Business Green" Club GreenSock memberships (one-off commercial projects don't require the special license). It's actually a more business-friendly license in many ways than a typical open source license that offers no warranties or backing of any kind or imposes code sharing or credit requirements. GreenSock's licensing model provides a small funding mechanism that benefits the entire user base because it empowers continued innovation and support, keeping it free for the vast majority of users. See the licensing page for details. Although there are some clear benefits of GreenSock's model, we'll give this round to CSS3 transitions because using them is technically "free" in more scenarios than GSAP. Price & license winner: CSS3 TRANSITIONS File size This is a tricky round indeed because GSAP requires inclusion of at least 1 JavaScript file whereas CSS3 transitions leverage native code in the browser, but the code you'd have to write to accomplish the same thing in CSS3 animations or transitions is often far more verbose, offsetting the kb savings. For example, let's take a relatively simple sequenced animation (see codepen or jsfiddle? GSAP code: var tl = new TimelineLite(); tl.staggerFrom('.box', 0.5, {opacity:0, scale:0, rotation:-180}, 0.3) .staggerTo('.box', 0.3, {scale:0.8}, 0.3, 0.7); This type of thing is impossible with CSS3 transitions, but it can be done with CSS3 animations as long as we give each element its own class name or ID. Let's take a look at the CSS code (see codepen or jsfiddle? Equivalent CSS3 Animation: .animated { -webkit-animation-fill-mode: both; -moz-animation-fill-mode: both; animation-fill-mode: both; -webkit-animation-duration: 1s; -moz-animation-duration: 1s; animation-duration: 1s; } @-webkit-keyframes introAnimation { 0% { -webkit-transform: scale(0) rotate(-180deg) ; opacity: 0; } 50% { -webkit-transform: scale(1) rotate(0deg) ; opacity: 1; } 70% { -webkit-transform: scale(1) rotate(0deg); } 100% { -webkit-transform: scale(0.8) rotate(0deg); } } @-moz-keyframes introAnimation { 0% { -moz-transform: scale(0) rotate(-180deg); opacity: 0; } 50% { -moz-transform: scale(1) rotate(0deg); opacity: 1; } 70%{ -moz-transform: scale(1) rotate(0deg); } 100% { -moz-transform: scale(0.8) rotate(0deg); } } @keyframes introAnimation { 00% { transform: scale(0) rotate(-180deg); opacity: 0; } 50% { transform: scale(1) rotate(0deg); opacity: 1; } 70%{ transform: scale(1) rotate(0deg); } 100% { transform: scale(0.8) rotate(0deg); } } .introAnimation { -webkit-backface-visibility: visible !important; -webkit-animation-name: introAnimation; -moz-backface-visibility: visible !important; -moz-animation-name: introAnimation; backface-visibility: visible !important; animation-name: introAnimation; } .two { -webkit-animation-delay: 0.3s; -moz-animation-delay: 0.3s; animation-delay: 0.3s; } .three { -webkit-animation-delay: 0.6s; -moz-animation-delay: 0.6s; animation-delay: 0.6s; } .four { -webkit-animation-delay: 0.9s; -moz-animation-delay: 0.9s; animation-delay: 0.9s; } .five { -webkit-animation-delay: 1.2s; -moz-animation-delay: 1.2s; animation-delay: 1.2s; } .six { -webkit-animation-delay: 1.5s; -moz-animation-delay: 1.5s; animation-delay: 1.5s; } .seven { -webkit-animation-delay: 1.8s; -moz-animation-delay: 1.8s; animation-delay: 1.8s; } .eight { -webkit-animation-delay: 2.1s; -moz-animation-delay: 2.1s; animation-delay: 2.1s; } .nine { -webkit-animation-delay: 2.4s; -moz-animation-delay: 2.4s; animation-delay: 2.4s; } As you can see, the CSS3 code is more than 10 times longer! And what if you want to have the entire sequence repeat 3 times? Good luck with that in CSS - you can set an animation-iteration-count but it only applies to each individual element, so it doesn't give us the effect we're after. And what if you want to experiment with the easing or offsets/delays or rotational values? It is quite cumbersome to say the least, even if you use sass or something like that. With GSAP, it's simple. If you only need very simple animations/transitions, CSS3 would deliver smaller file sizes, but once you start getting more aggressive and expressive with your animations, the scales shift quickly and GSAP becomes more economical. The other thing to keep in mind is that GSAP's JS file(s) are typically cached by the browser, so the savings page-to-page is much larger since the code you write on each page is far more concise. In other words, think of how much js/css the browser must actually request from the server over the course of your users' multi-page visit to your site. File size winner: TIE Flexibility Let's face it: basic tweening is pretty straightforward for any system, but it's really the details and advanced features that make a robust platform shine. GSAP crushes CSS3 transitions and animations when it comes to delivering a refined, professional-grade tool set that's truly flexible. Here are just a few of the conveniences baked into GSAP: Tween any numeric property of any object. Optionally round values to the nearest integer to make sure they're always landing on whole pixels/values. Animate along Bezier curves, even rotating along with the path or plotting a smoothly curved Bezier through a set of points you provide (including 3D!). GSAP's Bezier system is super flexible in that it's not just for x/y/z coordinates - it can handle ANY set of properties. Plus it will automatically adjust the movement so that it's correctly proportioned the entire way, avoiding a common problem that plagues Bezier animation systems. You can define Bezier data as Cubic or Quadratic or raw anchor points. Animate any color property of any JavaScript object (not just DOM elements). Define colors in any of the common formats like #F00 or #FF0000 or rgb(255,0,0) or rgba(255,0,0,1) or hsl(30, 50%, 80%) or hsla(30, 50%, 80%, 0.5) or "red". Set a custom fps (frames per second) for the entire engine (the default is 60fps). All tweens are perfectly synchronized (unlike many other tweening engines). Use the modern requestAnimationFrame API to drive refreshes or a standard setTimeout (the default is requestAnimationFrame with a fallback to setTimeout) Tons of easing options including proprietary SlowMo, RoughEase, and SteppedEase along with all the industry standards Animate css style sheet rules themselves with CSSRulePlugin Animate the rotation of an object in a specific direction (clockwise, counter-clockwise, or whichever is shortest) by appending "_cw", "_ccw", and "_short" to the value. You can tween getter/setter methods, not just properties. For example, myObject.getProp() and myObject.setProp() can be tweened like TweenLite.to(myObject, 1, {setProp:10}); and it will automatically recognize that it's a method and call getProp() to get the current value when the tween starts. Same for jQuery-style getters/setters that use a shared method like myObject.prop(). You can even tween another tween or timeline! For example, TweenLite.to(otherTween, 1, {timeScale:0.5}) would animate otherTween.timeScale to 0.5 over the course of 1 second. You can even scrub the virtual playhead of one tween/timeine with another tween by animating its "time". Flexibility winner: GSAP Conclusion Despite the hype surrounding CSS3 transitions and animations, they just aren't well-suited for professional-grade animation tasks. They did manage to win a few rounds in this match but ultimately GSAP man-handled them, sending them running from the ring like scared sissies. Of course we're slightly biased, but check out the facts for yourself. Kick the tires. Audition GSAP on your next project. See how it feels once you get past the initial learning curve. If you only need simple fades or very basic animation in modern browsers, CSS3 transitions are probably just fine. However, what happens when your client wants to do something more expressive? What if browser compatibility becomes an issue? Why not build on a solid foundation to begin with so that you don't find yourself having to rewrite all your animation code? If you want professional-grade scripted animation, look no further. To get started fast, check out our Jump Start tour. Recommended reading: Main GSAP JS page Why GSAP? A practical guide for developers Jump Start: GSAP JS jQuery vs GSAP: cage match 3D Transforms & More CSS3 Goodies Arrive in GSAP JS Speed comparison Explanation of CSS3 transitions, transforms and animations P.S. A rant about where animation logic belongs: We can't put this post to bed without mentioning a beef we've got with the whole concept of putting all your animation logic in css. Ever since the <blink> tag, there has been this tendency for browser vendors to offer developers these nifty "conveniences" that end up encouraging them to mix markup and/or style rules with behavioral logic. Is that really a good idea? One of the wonderful things about the modern web is that we've got this lovely separation between markup, presentation/styling, and behavioral logic (at least that's the goal). Should we be blurring the line like this? Isn't JavaScript the logic layer that should be handling state changes, application logic, reaction to user interaction (which often includes animation), etc.? Some may claim "But putting animation in css is great because that way if the user has JavaScript disabled, the animations still work!" Do you really think users of the modern web can turn off JavaScript and expect to browse the web with great results? Is that who you're targeting for a rich experience? And if they turned off JavaScript, might they have done so specifically to avoid annoying animations? Is it really helping to shift animation logic into css where they can't turn it off? In the web of yesteryear, animations were quite simplistic; fade this, slide that. Done. Anything more aggressive was relegated to a plugin like Flash which afforded incredible richness and complexity in terms of animation. But today, clients want that sort of expressiveness directly in the browser. It needs to work on mobile devices. It's no longer about simple fade-ins or sliding an image across the screen. CSS3 transitions fit the old mentality well, but not the new one. CSS3 animations technically provide more flexibility but they fall miserably short and they still force behavioral logic into the style layer. And to use them effectively, we still need JavaScript to at least swap classes and trigger things. From a development and debugging standpoint, when I apply a class to an element how would I know if that will trigger an animation or transition or neither? Should I have to keep bouncing back and forth between css and JS to manage behavioral logic related to animations? Maybe we're just ill-informed and there are some fantastic reasons for putting behavioral logic like animation into the css layer, but one thing seems pretty clear: the current way that developers have to build all but the simplest css animation leaves a LOT to be desired. The API is terribly limiting and clunky. Let's move the web forward. Let's make animation fun and flexible. Let's keep behavioral logic and style rules distinct. Let's leverage the incredible flexibility of JavaScript. If we've misrepresented anything here or if you want to weigh in with your opinion about where behavioral logic like animation belongs, feel free to post your comment below. If you're someone who has attempted an aggressive animation task with CSS3 transitions/animations as well as GSAP, we'd love to hear how you felt they compared.
  12. Hi everyone, I'm new to GSAP and am trying to duplicate a jQuery animation using Greensock. One of the effects is a constant scrolling background similar to http://www.kudoswebsolutions.com/blog/jquery_scrolling_background/demos.html Using tweenMax I've come up with TweenMax.to($("#bg"),1,{css:{backgroundPosition:"+=1px 0"},repeat:-1}); However the background position resets every time the animation repeats. How can I continue the animation indefinitely without setting the time to something like 99999?
  13. I'm having to develop a minisite which needs to be backwards compatible to IE7. I'm using jQuery and GS JS v12. I'm testing on browserstack.com -- a virtual IE7 running under a virtual Windows XP One of the errors I got is in CSSPlugin -- Invalid argument. I attach a picture at start of this message (click to see bigger). Two questions: 1) what might be going wrong? This code works fine in modern browsers. 2) is there a non-min version of the GS JS libraries to see things a little more clearly? obviously (1) depends on MY code, but I'm pretty sure there's nothing wrong with it as everything works with modern browser -- and it would be bloody hard to debug on this remote virtual machine, to see exactly which code of mine is being called — is there something with running v12 on IE7 that I should be aware of? I'm fine if it's not backwards-compatible, but just would like to know… Thanks
  14. I'm new to JS/CSS (coming from AS3) -- I wonder if someone could help me figure out the following: I'd like to have tabs at the bottom of a page which, when rolled over (or clicked) slide up. The tabs will contain images of 45px height. I'd like, say, the extended tab to be something like 100px in height. I gather this has something to do with overflow, hidden, auto, etc -- I've seen solutions using jQuery slide, but I'm not sure how to do it with Greensock -- that is, I am well-versed in the GS engines, but putting it all together (CSS, DIVs, overflows, etc) is throwing me. Any help much appreciated!
  15. As an erstwhile AS3 developer moving over to some JS, could someone clarify this for me? I was trying to move a div on screen and then (when invisible) set it back to where it started. Something like this (swapOut is a JQuery object): TweenMax.to(swapOut,0.4,{css:{x,opacity:0},onComplete:this.finishSwapImages,onCompleteParams:[swapOut,swapOut.css('x')]}); But I could never get it set back where I wanted? See the obvious error: I'm using 'x' instead of 'left'. When I inspected in Firebug I saw that my div's css had a transform-matrix set on it. When I went back and did this, all worked fine TweenMax.to(swapOut,0.4,{css:{left,opacity:0},onComplete:this.finishSwapImages,onCompleteParams:[swapOut,swapOut.css('left')]}); My question is: what's TweenMax doing for me with respect to x? Is this a proper CSS property? — or is TweenMax lending a helpful hand for us AS3 people and moving stuff in a tricky way when we (mistakenly) say 'x'? If so, what else is like this in the JS version? ("y" -> "top", etc?)
  16. I'm trying to figure out the best practice for an image swap. I'm coming from AS, new to JS, but I have a basic idea of what to do -- and nothing seems to work. I'm trying to use the old 'make a UL inline for a horizontal menu' trick -- I ran through all of these options but couldn't get any to work 1) loaded both images into the <li> with different z-indexes, thinking that I'd TweenMax the top image to 0 opacity on rollover -- even with float:left they sat next to each other not on top of each other. 2) I set the "over" image as the background with CSS and put the "out" image in the <li> and then tweened the "out" image to 0 opacity on rollover. Somehow this seemed to collapse the box -- the background image wasn't displayed when the front was invisible -- this seemed to be a result of the 'display:inline' The easiest thing is to simply swap 'src' on rollover -- but I'm looking for a gradual transition. Any suggestions? I know it's hard to talk about what I'm doing/not doing without my code, but in lieu of that, if someone could provide a sample, or a link, that would be helpful. Thanks!
  17. Hey! First of all, this isn't an animation or tween problem but as there is no other Javascript section, I'm posting it here. Also I'm not entirely sure that it is caused by TweenLite but it is happening in my TweenLite line of code. I have an image and I want to generate a reflection effect for it so I duplicated the image, mirrored it and reduced the opacity through TweenLite (makes it so much easier!). In all browsers I have tested it so far it works fine (including IE7) but in Chrome it's behaving weird. The reflecting image is at the bottom of my page and should partially exceed the bottom border of the DIV it is in. What Chrome does is that the image itself does not go further down than the border of the content div but the canvas or area of the image does go down. This results in clipping the image. This could be an issue with the css I'm applying with the TweenLite line or it could be the way TweenLite handles it. If I comment out the line with where the TweenLite css is set, it gets positioned over the border just fine, but obviously without the right css attributes. Here is the Jsfiddle: http://jsfiddle.net/qTE2m/ here are screenshots of what I mean: Chrome: http://puu.sh/1xI15 FireFox: http://puu.sh/1xI24 The black line at the bottom is the border of the div the image is in.
  18. Hi Jack, thanks for the gsap. From what i see the overwrite auto does not work for tweens initiated via css className. So if you have say an on-mouseover and add a css class {css:{className:"+=class1"}} and then mouse-out before the css property tweens are complete and remove the class {css:{className:"-=class1"}}, the first tween/s are not cancelled and continue to completion - and then the remove class takes effect immediately. If you use overwrite "all" - all tweens stop as expected. Cheers
  19. Hi, First - thanks so much for making this javascript framework! I've been trying to get an animation going in IE7/8 that I got to work on all other browsers using your framework, but it doesn't function properly in those browsers. You can see it in action here: http://neu14.com/transitions/print/index2.html I'm also attaching my files -> see index2.html (that one uses greensock). Thanks for any thoughts! Pol PS: I'm unclear if I need the CSS plugin for rotation or opacity or not since they both can be numeric? (I used it, but not sure if it was needed) animation.zip
  20. Hi, I was implementing a tween based on CSS3's background-size today. That would map to "backgroundSize" as defined in CSSPlugin.js. However, the tween doesn't work in the latest Firefox. While it works perfectly in the latest Chrome. I digged down until I found about this condition in _parsePosition function in CSSPlugin.js: _parsePosition = function(v, o) { if (v == null || v === "" || v === "auto") { v = "0 0"; } Debugging this, I found that 'v' was passed in as 'auto' in Chrome. But it was passed in as 'auto auto' instead in Firefox. Since 'v' was not changed to '0 0' this leads to parsing problem resulting in 'NaN' in o.ox. And thus the effect doesn't work. My TweenMax code looks like something along these lines: controller.addTween( chart.offset().top, TweenMax.fromTo($('.bub', chart), .25, {css:{opacity:0, 'letter-spacing':'30px', backgroundSize:'0% 0%'}, immediateRender:true, ease:Quad.easeInOut}, {css:{opacity:1, 'letter-spacing':'0px', backgroundSize:'100% 100%'}, ease:Quad.easeInOut} ), 0, -350 ); I patched CSSPlugin.js locally so that it now handles 'auto auto' case. The backgroundSize transition now works correctly on my machine. if (v == null || v === "" || v === "auto" || v === 'auto auto') { v = "0 0"; } Hope this helps. Not sure of any proper channel to report issue for TweenMax? Natthawut
  21. Sorry this is probably a really newb question, but can somebody help with the correct syntax for tweening css properties using fromTo (or is this not possible)? TweenMax.fromTo($(".obj"),1,{css:{left:50, top: 10}, css{left:0, top: 50}}); I've been messing around adding and deleting curly brackets for ages, but the console just throws an error every time and I can't seem to find anything in documentation to give me a better clue. Thanks for any help in advance - GSAP really is an awesome work!
  22. Note: This page was created for GSAP version 2. We have since released GSAP 3 with many improvements. While it is backward compatible with most GSAP 2 features, some parts may need to be updated to work properly. We encourage you to use the updated "Getting Started" page . The GreenSock Animation Platform (GSAP) animates anything JavaScript can touch (CSS properties, SVG, React, canvas, generic objects, whatever) and solves countless browser inconsistencies, all with blazing speed (up to 20x faster than jQuery). See "Why GSAP?" to learn why it's used by over 8,000,000 sites and every major brand. Hang in there through the learning curve and you'll discover how addictive animating with code can be. We promise it's worth your time. Quick links Loading GSAP Tweening Basics CSSPlugin 2D and 3D transforms Easing Callbacks Sequencing with Timelines Timeline control Getter / Setter methods Club GreenSock We'll cover the most popular features here but keep the GSAP docs handy for all the details. First, let's talk about what GSAP actually does... GSAP as a property manipulator Animation ultimately boils down to changing property values many times per second, making something appear to move, fade, spin, etc. GSAP snags a starting value, an ending value and then interpolates between them 60 times per second. For example, changing the x coordinate of an object from 0 to 1000 over the course of 1 second makes it move quickly to the right. Gradually changing opacity from 1 to 0 makes an element fade out. Your job as an animator is to decide which properties to change, how quickly, and the motion's "style" (known as easing - we'll get to that later). To be technically accurate we could have named GSAP the "GreenSock Property Manipulator" (GSPM) but that doesn't have the same ring. DOM, SVG, <canvas>, and beyond GSAP doesn't have a pre-defined list of properties it can handle. It's super flexible, adjusting to almost anything you throw at it. GSAP can animate all of the following: CSS: 2D and 3D transforms, colors, width, opacity, border-radius, margin, and almost every CSS value (with the help of CSSPlugin). SVG attributes: viewBox, width, height, fill, stroke, cx, r, opacity, etc. Plugins like MorphSVG and DrawSVG can be used for advanced effects. Any numeric value For example, an object that gets rendered to an HTML5 <canvas>. Animate the camera position in a 3D scene or filter values. GSAP is often used with Three.js and Pixi.js. Once you learn the basic syntax you'll be able to use GSAP anywhere JavaScript runs. This guide will focus on the most popular use case: animating CSS properties of DOM elements. (Note: if you're using React, read this too.) If you're using any of the following frameworks, these articles may help: React Vue Angular What's GSAP Exactly? GSAP is a suite of tools for scripted animation. It includes: TweenLite - the lightweight core of the engine which animates any property of any object. It can be expanded using optional plugins. TweenMax - the most feature-packed (and popular) tool in the arsenal. For convenience and loading efficiency, it includes TweenLite, TimelineLite, TimelineMax, CSSPlugin, AttrPlugin, RoundPropsPlugin, BezierPlugin, and EasePack (all in one file). TimelineLite & TimelineMax - sequencing tools that act as containers for tweens, making it simple to control entire groups and precisely manage relative timing (more on this later). Extras like easing tools, plugins, utilities like Draggable, and more Loading GSAP CDN The simplest way to load GSAP is from the CDN with a <script> tag. TweenMax (and all publicly available GSAP files) are hosted on Cloudfare's super-fast and reliable cdnjs.com. <script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/2.1.3/TweenMax.min.js"></script> Banner Ad CDNs Every major ad network excludes GSAP from file size limits when you load it from their CDN! Contact your ad network for their URLs. For example, Google hosts TweenMax at: //AdWords and DoubleClick ads only "https://s0.2mdn.net/ads/studio/cached_libs/tweenmax_2.1.2_min.js" NPM npm install gsap See the NPM Usage page in the docs for a full guide including how to import things (ES modules or UMD format), tree shaking, Webpack, how to get bonus plugins into a build system, etc. Downloading GSAP Download a zip directly from our home page or your account dashboard. If you're logged in as a Club GreenSock member this zip will include your bonus plugins. GitHub View the source code on GitHub. Tweening Basics Let's start with TweenMax, GSAP's most popular tool. We'll use CodePen demos so that you can easily fork and edit each example right in your browser. TweenMax.to() To create an animation, TweenMax.to() needs 3 things: target - the object you are animating. This can be a raw object, an array of objects, or selector text like ".myClass". duration (in seconds) vars - an object with property/value pairs that you're animating to (like opacity:0.5, rotation:45, etc.) and other optional special properties like onComplete. For example, to move an element with an id of "logo" to an x position of 100 (same as transform: translateX(100px)) over the course of 1 second: TweenMax.to("#logo", 1, {x:100}); Note: Remember that GSAP isn't just for DOM elements, so you could even animate custom properties of a raw object like this: var obj = {prop:10}; TweenMax.to(obj, 1, { prop:200, //onUpdate fires each time the tween updates; we'll explain callbacks later. onUpdate:function() { console.log(obj.prop); //logs the value on each update. } }); Demo: TweenMax.to() Basic Usage See the Pen TweenMax.to() Basic Usage by GreenSock (@GreenSock) on CodePen. If you would like to edit the code and experiment with your own properties and values, just hit the Edit on CodePen button. Notice that the opacity, scale, rotation and x values are all being animated in the demo above but DOM elements don't actually have those properties! In other words, there's no such thing as element.scale or element.opacity. How'd that work then? It's the magic of CSSPlugin. Before we talk about that, let's explain how plugins work in general. Plugins Think of plugins like special properties that get dynamically added to GSAP in order to inject extra abilities. This keeps the core engine small and efficient, yet allows for unlimited expansion. Each plugin is associated with a specific property name. Among the most popular plugins are: CSSPlugin*: animates CSS values AttrPlugin*: animates attributes of DOM nodes including SVG BezierPlugin*: animates along a curved Bezier path MorphSVGPlugin: smooth morphing of complex SVG paths DrawSVGPlugin: animates the length and position of SVG strokes *loaded with TweenMax CSSPlugin In the previous example, CSSPlugin automatically noticed that the target is a DOM element, so it intercepted the values and did some extra work behind the scenes, applying them as inline styles (element.style.transform and element.style.opacity in that case). Be sure to watch the "Getting Started" video at the top of this article to see it in action. CSSPlugin Features: normalizes behavior across browsers and works around various browser bugs and inconsistencies optimizes performance by auto-layerizing, caching transform components, preventing layout thrashing, etc. controls 2D and 3D transform components (x, y, rotation, scaleX, scaleY, skewX, etc.) independently (eliminating order-of-operation woes) reads computed values so you don't have to manually define starting values animates complex values like borderRadius:"50% 50%" and boxShadow:"0px 0px 20px 20px red" applies vendor-specific prefixes (-moz-, -ms-, -webkit-, etc.) when necessary animates CSS Variables handles color interpolation (rgb, rgba, hsl, hsla, hex) normalizes behavior between SVG and DOM elements (particularly useful with transforms) ...and lots more Basically, CSSPlugin saves you a ton of headaches. Because animating CSS properties is so common, GSAP automatically senses when the target is a DOM element and adds a css:{} wrapper. So internally, for example, {x:100, opacity:0.5, onComplete:myFunc} becomes {css:{x:100, opacity:0.5}, onComplete:myFunc}. That way, CSS-related values get routed to the plugin properly and you don't have to do any extra typing. You're welcome. ? To understand the advanced capabilities of the CSSPlugin read the full CSSPlugin documentation. 2D and 3D transforms CSSPlugin recognizes a number of short codes for transform-related properties: GSAP CSS x: 100 transform: translateX(100px) y: 100 transform: translateY(100px) rotation: 360 transform: rotate(360deg) rotationX: 360 transform: rotateX(360deg) rotationY: 360 transform: rotateY(360deg) skewX: 45 transform: skewX(45deg) skewY: 45 transform: skewY(45deg) scale: 2 transform: scale(2, 2) scaleX: 2 transform: scaleX(2) scaleY: 2 transform: scaleY(2) xPercent: 50 transform: translateX(50%) yPercent: 50 transform: translateY(50%) GSAP can animate any "transform" value but we strongly recommend using the shortcuts above because they're faster and more accurate (GSAP can skip parsing computed matrix values which are inherently ambiguous for rotational values beyond 180 degrees). The other major convenience GSAP affords is independent control of each component while delivering a consistent order-of-operation. Performance note: it's much easier for browsers to update x and y (transforms) rather than top and left which affect document flow. So to move something, we recommend animating x and y. Demo: Multiple 2D and 3D transforms See the Pen Multiple 2D and 3D Transforms by GreenSock (@GreenSock) on CodePen. Additional CSSPlugin notes Be sure to camelCase all hyphenated properties. font-size should be fontSize, background-color should be backgroundColor. When animating positional properties such as left and top, its imperative that the elements you are trying to move also have a css position value of absolute, relative or fixed. vw/vh units aren't currently supported natively, but it's pretty easy to mimic using some JS like x: window.innerWidth * (50 / 100) where 50 is the vw. Just ask in the forums for some help. from() tweens Sometimes it's amazingly convenient to set up your elements where they should end up (after an intro animation, for example) and then animate from other values. That's exactly what TweenMax.from() is for. For example, perhaps your "#logo" element currently has its natural x position at 0 and you create the following tween: TweenMax.from("#logo", 1, {x:100}); The #logo will immediately jump to an x of 100 and animate to an x of 0 (or whatever it was when the tween started). In other words, it's animating FROM the values you provide to whatever they currently are. Demo: TweenMax.from() with multiple properties See the Pen TweenMax.from() tween by GreenSock (@GreenSock) on CodePen. There is also a fromTo() method that allows you to define the starting values and the ending values: //tweens from width 0 to 100 and height 0 to 200 TweenMax.fromTo("#logo", 1.5, {width:0, height:0}, {width:100, height:200}); Special properties (like onComplete) A special property is like a reserved keyword that GSAP handles differently than a normal (animated) property. Special properties are used to define callbacks, delays, easing and more. A basic example of a special property is delay: TweenMax.to("#logo", 1, {x:100, delay:3}); This animation will have a 3-second delay before starting. Other common special properties are: onComplete - a callback that should be triggered when the animation finishes. onUpdate - a callback that should be triggered every time the animation updates/renders ease - the ease that should be used (like Power2.easeInOut) Easing If your animation had a voice, what would it sound like? Should it look playful? Robotic? Slick? Realistic? To become an animation rock star, you must develop a keen sense of easing because it determines the style of movement between point A and point B. The video below illustrates the basics. An "ease" controls the rate of change during a tween. Below is an interactive tool that allows you to visually explore various eases. Note: you can click on the underlined parts of the code at the bottom to change things.
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