4/2/2023 0 Comments Sprite master web free![]() ![]() Include the appropriate -webkit- vendor prefix, and the effect works in all modern browsers including IE10 and above. Browser support for CSS animations is excellent, with the CSS3 keyframe syntax being the only limiting factor. This is a lightweight and mobile-friendly method of achieving a responsive frame-by-frame animation effect. See the Pen zxXrzP by SitePoint ( on CodePen. This trick is used in the demo below to give our sprite a fluid width of 70%. Our second option is to take advantage of Marc Hinse’s pure-CSS fixed aspect ratio technique, which uses percentage-based padding on a pseudo-element to maintain an element’s proportions at any size. This would achieve the desired effect, and may be suitable for most purposes, but would not result in true fluidity. The first option is to set the background-size of our sprite to 100% of the width of our element, convert the width and height of our element from pixels to ems, and then alter the base font-size as required. We must retain its proportions for it to scale correctly. A key to both options is our sprite’s dependence on a consistent aspect ratio, rather than a particular size. If we wish to freely resize our animated sprite, we have two options. Our animated element is not yet responsive, and is dependent on rigid, pixel-based dimensions. Try changing the height of our Ryu element, or applying a background-size to our sprite, and the effect will break. We’ve used the shorthand notation to set the animation-iteration-count to “infinite” and the animation-duration to 3.5 seconds, with the result that Ryu will carry out his punch-kick-hadoken combo until the end of time. Note that we’ve defined the width and height of our element to exactly match that of a single frame, to avoid any bleeding of prior or subsequent frames. See the Pen MYRKmJ by SitePoint ( on CodePen. Because of the way background-position works when defined as a percentage, we’ll need to set the number of steps to be one fewer than the total number of frames in our animation.Įxperiment with the following CodePen to get the idea: By using the steps() function, however, we can control the number of rendered keyframes. We’re looking to animate the vertical background-position of our element from 0% to 100% (top to bottom), exposing each frame in turn.Īllowing the animation to run in one continuous sequence, as per default behaviour, would expose our sprite’s in-between frames and ruin the illusion. ![]() If you’re unfamiliar with the basic syntax, Louis Lazaris’s article on Smashing Magazine is a very good introduction. We’ll start simply, and animate our sprite with CSS3 keyframe animation. This is the graphic that we will apply as a background-image in CSS to the element we want to animate, altering its position to cycle through each frame in sequence. PNG files in our directory (since ‘*’ is essentially a wildcard) into one complete sprite called “result-sprite.png”. This command instructs ImageMagick to vertically concatenate all the. Break out a command-line terminal, navigate ( cd) to the directory where your images are saved, and execute the following command: convert *.png -append result-sprite.png Save the identically-sized frames of your animation in a folder as a sequence of PNGs. Mac users can install it via Homebrew, Windows adherents can download an executable installer from the official website, and Linux devotees probably don’t need me to explain anything. ImageMagick is also available for just about every operating system. ImageMagick, the ‘swiss army knife’ of image processing, is a free and open-source image manipulation tool that’s perfect for automating tasks that could become laborious, such as combining images. For our purposes, however, a simple command-line approach works fine. Compass’s built-in spriting features are immensely powerful, and SpritePad is a good example of a web-based generator. There are dozens of tools out there to aid with the creation of sprites, many of which will even generate an accompanying stylesheet for you. We need to combine each frame of our animation into a single image. ![]() Needless to say, all artwork belongs to Capcom. Sprites originate from the world of video games, so we’ll pay tribute to their heritage and animate Ryu from Street Fighter. ![]()
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