This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
#!/bin/bash | |
PARAMS=('-m 6 -q 70 -mt -af -progress') | |
if [ $# -ne 0 ]; then | |
PARAMS=$@; | |
fi | |
cd $(pwd) |
/* | |
* This work is free. You can redistribute it and/or modify it under the | |
* terms of the Do What The Fuck You Want To Public License, Version 2, | |
* as published by Sam Hocevar. See the COPYING file for more details. | |
*/ | |
/* | |
* Easing Functions - inspired from http://gizma.com/easing/ | |
* only considering the t value for the range [0, 1] => [0, 1] | |
*/ | |
EasingFunctions = { |
vec2 rotate(vec2 v, float a) { | |
float s = sin(a); | |
float c = cos(a); | |
mat2 m = mat2(c, s, -s, c); | |
return m * v; | |
} |
var p1 = { | |
x: 20, | |
y: 20 | |
}; | |
var p2 = { | |
x: 40, | |
y: 40 | |
}; |
vec2 rotateUV(vec2 uv, float rotation) | |
{ | |
float mid = 0.5; | |
return vec2( | |
cos(rotation) * (uv.x - mid) + sin(rotation) * (uv.y - mid) + mid, | |
cos(rotation) * (uv.y - mid) - sin(rotation) * (uv.x - mid) + mid | |
); | |
} | |
vec2 rotateUV(vec2 uv, float rotation, vec2 mid) |
##Sass Functions Cheat Sheet
var cameraZ = camera.position.z; | |
var planeZ = 5; | |
var distance = cameraZ - planeZ; | |
var aspect = viewWidth / viewHeight; | |
var vFov = camera.fov * Math.PI / 180; | |
var planeHeightAtDistance = 2 * Math.tan(vFov / 2) * distance; | |
var planeWidthAtDistance = planeHeightAtDistance * aspect; | |
// or |
const cloneGltf = (gltf) => { | |
const clone = { | |
animations: gltf.animations, | |
scene: gltf.scene.clone(true) | |
}; | |
const skinnedMeshes = {}; | |
gltf.scene.traverse(node => { | |
if (node.isSkinnedMesh) { |
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc | |
. ~/.bashrc | |
mkdir ~/local | |
mkdir ~/node-latest-install | |
cd ~/node-latest-install | |
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1 | |
./configure --prefix=~/local | |
make install # ok, fine, this step probably takes more than 30 seconds... | |
curl https://www.npmjs.org/install.sh | sh |