p5.gif.js

p5.gif.js is a library that let's you play animated gifs in p5.js sketches. You load a gif by calling loadGif('something.gif') and then can display it using p5's built in image() function. Like this:

var gif;

function setup() {
  createCanvas(600,600);
  gif = loadGif('mygif.gif');
}

function draw() {
  background(0);
  image(gif, 0, 0);
}

Reference

gif = loadGif(image) loads up a gif and returns a p5Image object with some extra functionality. Warning: loadGif only works with locally hosted gifs.

gif.play() plays the gif (it will start playing by default)

gif.pause() pauses the gif

gif.playing() returns true or false depending on if the gif is currently playing

gif.loaded() returns true or false depending on if the gif has loaded

gif.frames() returns the frames as an array of image data

gif.frame([n]) with no argument, returns the current frame. With an integer as an argument, skips to that frame.

totalFrames() returns the total number of frames in the gif

loadGif() will return a modified p5Image object, so you can also use any of the p5Image functions like loadPixels(), filter() or blend().

Examples

Load and play an animated gif

var gif;

function setup() {
  createCanvas(600, 300);
  gif = loadGif('test.gif');
}

function draw() {
  background(0);
  if (gif.loaded()) {
    image(gif, 0, 0);
  }
}

Scrub through a gif with your mouse position

var gif;

function setup() {
  createCanvas(600, 300);
  gif = loadGif('test.gif');
  gif.pause();
}

function draw() {
  background(0);
  if (gif.loaded()) {
    image(gif, 0, 0);
  }
}

function mouseMoved() {
  if (gif.loaded()) {
    var frame = int(map(mouseX, 0, width, 0, gif.totalFrames()));
    gif.frame(frame);
  }
}

Credits

This library is a very slight modification of Buzzfeed's SuperGif, which is a fork of shachaf's jsgif