Daniel Bayley danielbayley

The dynamic wallpaper in MacOS Mojave is a single 114 MB .heic file that seems to contain 16 embedded images.

It also contains the following binary plist data in its metadata under the key "Solar". It's an array of 16 items, each with four keys:

i (integer). This seems to be the image index.
o (integer). This is always 1 or 0. Stephen Radford thinks it indicates dark mode (0) vs. light mode (1).
a (decimal). I’m pretty sure this is the angle of the sun over the horizon. 0º = sunset/sunrise. 90º = sun directly overhead. Negative values = sun below horizon.
z (decimal). This seems to be the cardinal position of the sun relative to the camera. 0º = sun is directly in front of the camera. 90º = sun is directly to the right of the camera. 180º = sun is directly behind the camera.

How to transform an SVG into a data URI

by Jenny Knuth, based on the work of Chris Coyier and Taylor Hunt

A data URI is a nice way to include a web resource without needing to make an HTTP request. Chris Coyier explains the technique nicely in Probably Don't Base64 SVG.

While a PNG might use Base64 encoding, for SVG, there is a better way.

Taylor Hunt's experiments led to this solution for optimizing SVGs in data URIs:

"So the best way of encoding SVG in a data URI is data:image/svg+xml,[actual data]. We don’t need the ;charset=utf-8 parameter (or the invalid ;utf8 parameter…), because URLs are always ASCII."

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

How to use?

Copy content of vsix-bookmarklet, create a bookmark in your browser.
Navigate to the web page of the VS Code extension you want to install.
Click the bookmark you just created, then click the download button.
After download finished, rename the file extension to *.vsix.
In VS Code, select Install from VSIX... in the extension context menu.

ESM modules in node: npm edition

The proposal you’re about to read is not just a proposal. We have a working implementation of almost everything we discussed here. We encourage you to checkout and build our branch: our fork, with the relevant branch selected. Building and using the implementation will give you a better understanding of what using it as a developer is like.

Our implementation ended up differing from the proposal on some minor points. As our last action item before making a PR, we’re writing documentation on what we did. While I loathe pointing to tests in lieu of documentation, they will be helpful until we complete writing docs: the unit tests.

This repo also contains a bundled version of npm that has a new command, asset. You can read the documentation for and goals of that comma

	// -- app.js --
	import { AbstractNode } from './internal'

	/* as is */

	// -- internal.js --
	export * from './AbstractNode'
	export * from './Node'
	export * from './Leaf'

	import Foundation
	import AppKit
	import AVFoundation

	extension NSImage {
	@objc var CGImage: CGImage? {
	get {
	guard let imageData = self.tiffRepresentation else { return nil }
	guard let sourceData = CGImageSourceCreateWithData(imageData as CFData, nil) else { return nil }
	return CGImageSourceCreateImageAtIndex(sourceData, 0, nil)

	import Foundation
	import AppKit
	import AVFoundation

	extension NSImage {
	@objc var CGImage: CGImage? {
	get {
	guard let imageData = self.tiffRepresentation else { return nil }
	guard let sourceData = CGImageSourceCreateWithData(imageData as CFData, nil) else { return nil }
	return CGImageSourceCreateImageAtIndex(sourceData, 0, nil)

	#!/bin/bash

	# Script to backup git repo to Backblaze B2
	# Set bucket, dir, password and account to use for the backup. I keep mine in local env vars
	# These are set by localrc which lives on an encrypted home directory and is executed by my bashrc
	# Ensure you have authorized the B2 command line tool with the correct account AND added your SSH
	# public key to your github account, if you need to backup private repositories.

	# To restore this repo in the future, download it from B2, extract it and then use this command:
	# cd old-repository.git

	//dynamic parenting for 3d layers
	//from Dan Ebberts on forums I think..

	//Position
	L=thisComp.layer("Object center");
	L.toWorld(L.effect(name)("3D Point"));

	//Scale
	L =thisComp.layer("Object center");
	[L.transform.scale[0]/100value[0],L.transform.scale[1]/100value[1],L.transform.scale[2]/100*value[2]];