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POCSS3 Sprite Animation without tweening
 

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    <p><strong>Read below for my final edit!</strong></p> <p>Is it possible to use CSS3 animations without having the animations tween between frames?</p> <p>For example, I have an image that I have two character animation sprites on. They are spaced evenly 50px. When I use the following animation I still get a tween (although a very fast tween so it can look like a flicker).</p> <pre><code>#ball .animated{ -webkit-animation-name: animate; -webkit-animation-duration: .5s; -webkit-animation-iteration-count: infinite; -webkit-animation-direction: alternate; -webkit-animation-timing-function: linear;} @-webkit-keyframes animate{ 0%{-webkit-transform: translate3d(0,0,0);} 49%{-webkit-transform: translate3d(0,0,0);} 50%{-webkit-transform: translate3d(-50px,0,0);} 100%{-webkit-transform: translate3d(-50px,0,0);} </code></pre> <p>So based on the above, the sprite-frame should be held on the first part of the image (x = 0px) for the first 0-49% of the duration and then jump to second part of the image (x = -50px) for 50-100%. However, the 1% difference is still enough to visually see a tween from 0 to -50px.</p> <p>Thoughts?</p> <p>Edit:</p> <pre><code>-webkit-animation-timing-function: cubic-bezier(1,0,1,0); </code></pre> <p>The above seemed to straighten it out a bit but after a while it goes back to flickering.</p> <p>Edit: I hadn't realized that you could use decimals with the percentages. Closing the gap from 1% to 0.1% creates a much faster tween which is just about not visible (with a <code>-webkit-animation-duration:</code> &lt; 1s;)</p> <pre><code>0%{-webkit-transform: translate3d(0,0,0);} 49.9%{-webkit-transform: translate3d(0,0,0);} 50%{-webkit-transform: translate3d(-50px,0,0);} 100%{-webkit-transform: translate3d(-50px,0,0);} </code></pre> <p><strong>Final edit!:</strong> Ok, so from what I've found web-kit animations percentages will accept a decimal to the millionth place (i.e. 0.0001). Which on a relatively quick animation timer will result in an instantaneous translation. A little bit of a hack I suppose but it does the trick.</p> <p>Example:</p> <pre><code>@-webkit-keyframes sprite { 0% { -webkit-transform: translate3d(0,0,0); } 50% { -webkit-transform: translate3d(0,0,0); } 50.0001%{ -webkit-transform: translate3d(-50px,0,0); } 100%{ -webkit-transform: translate3d(-50px,0,0); } } </code></pre> <p>The above example is of an image of 100px (each sprite on the image is 50px wide) within a container div with the <code>width: 50px</code> and <code>overflow:hidden</code> to only show one sprite off the image at a time.</p> <p>Note: I am using translate3d because it is hardware accelerated in mobile browsers where translateX,translateY,translateZ are not yet hardware accelerated.</p>
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    1. COI am currently attempting to use a cubic-bezier that is a vertical line.
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    2. COEmpereol: unfortunately css animations do not currently support non-tweening keyframes. Your solution might not look the same on a very fast computer (since you could still be able to catch a few frames between the two states). I'd suggest using sprite.js http://www.readwriteweb.com/hack/2010/12/spritejs-javascript-sprite-framework.php which does this great.
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    3. COData belongs in HTML, Styles belong in CSS, Interactions belong in JS. It sounds to me like you're trying to create an interaction with a styling language.
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