abeamer

frame-by-frame Web Animation framework

MIT License

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Description

ABeamer is a powerful frame-by-frame animation ecosystem, designed to create an animated story in the web browser and generate the file images of each frame in either a local machine or in the cloud.

Unlike VelocityJs and JQuery.animate which were built for real-time user interaction, ABeamer allows you to build complex frame based animations and save them frame-by-frame with transparency at high resolution and lossless compression without frame drop.

When an animated story is designed to be rendered in the cloud, no software is required to install on the local machine, allowing video hosting services, ad network, e-commerce companies many other businesses to provide a tool for their users to add text, images, and special effects to their images or videos by just using the web browser and then teleport the story to the company's machine to render the frame images and generate animated gifs or videos.

If you find this project useful, please, read the Support this Project on how to contribute.

Components

ABeamer includes a web browser library, a render server agent and a command line utility. For the ABeamer Animation Editor, read Animation Editor.

  • ABeamer web browser library is a highly extensible TypeScript/JavaScript library
    bundled with a rich toolset reducing the time to build complex animations.
  • ABeamer render server agent is designed to communicate with a render server, usually a headless web browser, in order to save
    each frame to the disk. It can run either with the full potential supporting Code Handlers
    or in a sanitized environment allowing you to safely to render animations created by other users.
  • ABeamer command line utility allows you to build new projects,
    render frames, create animated gifs or movies.

Read the requirements for details about the necessary software to install if you need to render, create gifs or movies in the local machine.

Features

  • Saves frame-by-frame into a file sequence with transparency and at high resolution.
  • Optional support for SCSS, LESS and TypeScript.
  • Localization of messages and plugin functionalities, including functions and variables.

Property Animation

ABeamer has a complex system that allows to interpolate pixels, numbers, text, colors and much more. ABeamer guesses the starting value and property type from CSS style information, or if that information is given via valueStart.

  • General CSS properties:

e.g prop: 'border-style'; valueText: ['dotted', 'dashed'].

  • Pixel properties.
    e.g. valueStart: 10px; value: 100;
  • Dual-pixel properties via paths.
  • Color properties.
    e.g. valueText: ['red', '#FF00AA'];
  • Formatted numerical properties.
    e.g. valueFormat: '%d%'; value: 100;
  • Unformatted numerical properties.
  • Image properties.
    e.g. prop: 'src'; valueText: ['a.png', 'b.png'];
  • Text properties.
  • class property.
    e.g. prop: 'class'; valueText: ['+class1 -class2'];
  • visible property.
    e.g. prop: 'visible'; duration: 1; value: 1;
  • transform property:
    e.g. prop: 'transform'; valueFormat: 'rotateX(%fdeg)';

CSS Animations

ABeamer doesn't supports CSS animations, but ABeamer was designed in a way that its animations are similar to CSS animations, therefore it's easy to convert CSS Animations to ABeamer animations. Besides the property interpolation described above, ABeamer also supports:

  • Item-delay with disturbance to produce random effects.
  • CSS animation-iteration-count.

Interpolators

ABeamer provides several interpolators, which can be defined by:

  • Teleportable Built-in interpolators. Accessible by name and ID.
  • Teleportable Expressions.
  • Plugins. Only official plugins can be teleportable.
  • Code Handlers due security reasons aren't teleportable.

ABeamer has following interpolators:

  • Easings - The speed of motion.
  • harmonic and damped oscillators - Rotation and Balancing motion.
  • pulsar oscillator.
  • Paths - n-dimension motion.

The interpolators are chained in the following order: easing→oscillator→path.

Toolset

ABeamer has a rich toolset. Extensibility and teleportation are the key features of these tools. Unless is noticed, all the built-in tools support teleportation. Just like in the case of interpolators, Code Handlers aren't teleported, and the tools can be extended via plugins but only official plugins are teleportable.

ABeamer has the following tools:

  • Scene transitions.
  • info flyover.
  • video-sync flyover [1].
  • Wrappers.
  • Text tasks:
    • text-split task.
    • typewriter task.
  • factory task.
  • decipher task.
  • color-attack task.
  • shape task.
  • speech shape task.
  • charts task.

and much more coming soon.

Installation

To create animations, It's only required to have the web browser library without the need of any software installed in the computer.

If you have nodejs already installed, install using npm:

[sudo] npm install -g abeamer

Otherwise if you don't want to install nodejs, download from here, but it won't execute the command-line utility.

Requirements

However, in order to render frames, generate gifs and movies, it requires:

  1. nodejs.

  2. To render, it requires puppeteer render server npm install -g puppeteer. Puppeteer installs Chromium by default, since Chromium is outdated and it has less features than Chrome, before installing puppeteer, read the following note on how to configure puppeteer to use Chrome instead of Chromium. ABeamer also supports phantomjs but since its features are outdated it is preferable to use puppeteer.

  3. To generate gifs, it requires to have imagemagick on system path. For Windows users, read the following note.

  4. To create movies, it requires to have ffmpeg on the system path.

To check if 2-4 points are installed and configured, execute: abeamer check

Playground

Try these examples online without any installation:

Get started

Start by creating a new project using the ABeamer command line utility:

abeamer create myproject

ABeamer web browser library root is ABeamer.Story. When you create a story, you define an immutable number of frames per second, and all animations are interpolated based on that fps.

on file js/main.ts:

  let story = ABeamer.createStory(25); // creates a story with 25 fps

The story holds a collection of Scenes. Only one scene can be visible at a given moment in time except during the transition between two scenes. It represents the natural concept of a scene in a storyline. By using Scenes, ABeamer can speed up the processing speed by reducing the global amount of calculations.

The bare-bones of a html file:

  <div class="abeamer-story" id=story>
      <div class=abeamer-scene id=scene1>
           <p id="hello">Hello world</p>
      </div>
  </div>

The bare-bones of a abeamer.ini file:

$abeamer-width: 200;
$abeamer-height: 100;

The bare-bones of a scss file:

@import "./../abeamer.ini";
body,
html,
.abeamer-story,
.abeamer-scene {
  width: $abeamer-width + px;
  height: $abeamer-height + px;
}

Html Elements with abeamer-scene class are added automatically. Scenes can be added manually with the following code:

 const newScene = story.AddScene();

Creating scenes with abeamer-scene class is the preferable way. You add animations to the scene defining the time in 'seconds', 'milliseconds' or 'frames' but if it's defined in time, these are converted to frames based on the story fps.

  scene1.addAnimations(
    [{
      selector: '#hello',  // dom or JQuery selector
      duration: '4s', // at 25fps, the duration is 100 frames
      props: [
        {
          prop: 'left',  // property, text, url to animate
          easing: 'easeOutQuad', // easing
          value: 100 // end value
        }
      ]
    }]
  );

You can add multiple properties in parallel or off-sync with the position or advance parameter.

Command line

ABeamer command line utility is used to:

  1. checks if requirements are configured: abeamer check.
  2. create projects: abeamer create.
  3. launch a live server: abeamer serve.
  4. create a png file sequence: abeamer render.
  5. create gifs: abeamer gif.
  6. create movies: abeamer movie.

For detailed examples, read: Command Line Utility. Read Requirements for details about the necessary software to install if you need to render, create gifs or movies on the local machine.

Documentation

Known Issues

Support this Project

If you find this project useful, consider supporting it:

  • Donate:

Contribute

Image ABeamer was built on Linux/Chrome/Puppeteer and tested on Windows, Firefox, Opera, MS IE11 and MS Edge.

To keep an healthy cooperation environment, before posting an issue, please read Code Of Conduct.

Report issues on github.

License

MIT License

Copyrights

(c) 2018-2024 Alexandre Bento Freire