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@transkatgirl
transkatgirl / encodetwitter.sh
Last active October 29, 2022 11:33
Encode a video for uploading to Twitter using FFMPEG and FDKAAC
#!/bin/bash
# https://developer.twitter.com/en/docs/twitter-api/v1/media/upload-media/uploading-media/media-best-practices
# - h.264 high profile
# - 60fps or less
# - aac-lc, he-aac not supported
# - 16:9 recommended
# - 512mb maximum
# - shorter than 140s
# - 1:1 pixel aspect ratio
# - yuv 4:2:0
@cecilemuller
cecilemuller / 2019-https-localhost.md
Last active June 10, 2024 13:31
How to create an HTTPS certificate for localhost domains

How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

@martinruenz
martinruenz / ffmpeg-snippets.md
Last active November 15, 2022 06:39
ffmpeg snippets / cheatsheet
@companje
companje / map.glsl
Created January 23, 2018 22:46
map() function for GLSL known from Processing & openFrameworks
float map(float value, float min1, float max1, float min2, float max2) {
return min2 + (value - min1) * (max2 - min2) / (max1 - min1);
}
@ayamflow
ayamflow / gist:96a1f554c3f88eef2f9d0024fc42940f
Last active May 15, 2024 12:37
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
@Volcanoscar
Volcanoscar / greyscale.frag
Created January 19, 2017 08:28 — forked from wiseoldduck/greyscale.frag
A simple glsl color -> greyscale shader, using luminosity method
// fragment shader
//
// RGBA color to RGBA greyscale
//
// smooth transition based on u_colorFactor: 0.0 = original, 1.0 = greyscale
//
// http://www.johndcook.com/blog/2009/08/24/algorithms-convert-color-grayscale/
// "The luminosity method is a more sophisticated version of the average method.
// It also averages the values, but it forms a weighted average to account for human perception.
// We’re more sensitive to green than other colors, so green is weighted most heavily. The formula
@markreid
markreid / gitflowrebasing.md
Created January 17, 2017 04:30
git flow with rebasing
@only-cliches
only-cliches / pixibackground.js
Last active March 14, 2024 12:07
PixiJS Background Cover & Background Container
/*
* PixiJS Background Cover/Contain Script
* Returns object
* . {
* container: PixiJS Container
* . doResize: Resize callback
* }
* ARGS:
* bgSize: Object with x and y representing the width and height of background. Example: {x:1280,y:720}
* inputSprite: Pixi Sprite containing a loaded image or other asset. Make sure you preload assets into this sprite.
@superguigui
superguigui / README.md
Last active December 13, 2022 21:38
Three-orbit-controls with rotation set methods

I added a few methods to three-orbit-controls to be able to manually define phi or theta and be able to rotate to a given point.

// rotation in Y
controls.setAzimuthalAngle(theta);

// rotation in X
controls.setPolarAngle(phi);
@paulirish
paulirish / what-forces-layout.md
Last active June 17, 2024 12:46
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent