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@ayamflow
ayamflow / gist:96a1f554c3f88eef2f9d0024fc42940f
Last active March 20, 2024 02:48
Threejs Fit plane to screen
var cameraZ = camera.position.z;
var planeZ = 5;
var distance = cameraZ - planeZ;
var aspect = viewWidth / viewHeight;
var vFov = camera.fov * Math.PI / 180;
var planeHeightAtDistance = 2 * Math.tan(vFov / 2) * distance;
var planeWidthAtDistance = planeHeightAtDistance * aspect;
// or
@nathansearles
nathansearles / isAutoplaySupported.js
Last active December 13, 2022 11:06
Test if HTML5 video autoplay is supported
// isAutoplaySupported(callback);
// Test if HTML5 video autoplay is supported
isAutoplaySupported = function(callback) {
// Is the callback a function?
if (typeof callback !== 'function') {
console.log('isAutoplaySupported: Callback must be a function!');
return false;
}
// Check if sessionStorage exist for autoplaySupported,
// if so we don't need to check for support again
@kus
kus / fixIOSAudioContext.js
Last active March 27, 2024 11:21
Fix iOS AudioContext on Safari not playing any audio. It needs to be "warmed up" from a user interaction, then you can play audio with it as normal throughout the rest of the life cycle of the page.
// Fix iOS Audio Context by Blake Kus https://gist.github.com/kus/3f01d60569eeadefe3a1
// MIT license
(function() {
window.AudioContext = window.AudioContext || window.webkitAudioContext;
if (window.AudioContext) {
window.audioContext = new window.AudioContext();
}
var fixAudioContext = function (e) {
if (window.audioContext) {
// Create empty buffer
@Vestride
Vestride / encoding-video.md
Last active April 24, 2024 09:59
Encoding video for the web

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus
@leonderijke
leonderijke / svgfixer.js
Last active May 26, 2023 11:22
Fixes references to inline SVG elements when the <base> tag is in use.
/**
* SVG Fixer
*
* Fixes references to inline SVG elements when the <base> tag is in use.
* Firefox won't display SVG icons referenced with
* `<svg><use xlink:href="#id-of-icon-def"></use></svg>` when the <base> tag is on the page.
*
* More info:
* - http://stackoverflow.com/a/18265336/796152
* - http://www.w3.org/TR/SVG/linking.html
@patriciogonzalezvivo
patriciogonzalezvivo / GLSL-Noise.md
Last active May 10, 2024 02:42
GLSL Noise Algorithms

Please consider using http://lygia.xyz instead of copy/pasting this functions. It expand suport for voronoi, voronoise, fbm, noise, worley, noise, derivatives and much more, through simple file dependencies. Take a look to https://github.com/patriciogonzalezvivo/lygia/tree/main/generative

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
@caged
caged / svg-to-png.js
Created January 27, 2013 18:11
Convert SVG's to PNGs. This works OK if the SVG's styles are inline. The SVG element must contain an xmlns attribute. Webkit also requires you specify a font size on `text` elements.
var svg = document.getElementById('graph'),
xml = new XMLSerializer().serializeToString(svg),
data = "data:image/svg+xml;base64," + btoa(xml),
img = new Image()
img.setAttribute('src', data)
document.body.appendChild(img)