# Particles and SketchUp Shenanigans

Particles are cool! Example,

I had this idea back in 2014 of getting the points from premade 3D models (similar to the video above), and using them to do fancy animations in Threejs. Then I hit a knowledge wall and shelved it. Until today…

# Tweening Particles With Three.js

I had this idea to use the concept of spherical projection to make a nifty thing with the webcam and particles.

The end result is meh-okayish. Play with it here

# Project MViz - Update 4

I randomly came across this awesome project by makc. At first I thought it was a rendered photo of a model made by dedicated 3D software like Maya and Blender. But no, it was actually running live on the web using Three.js! Wow.

It is basically the explosion effect I’ve been after, whereby the whole country, not just a bar, extrudes outwards to indicate the value of a data point.

I had been working at this problem for sometime, but my results were rather unspectacular. Also my approach of using only the outlines of the countries meant I was limited in how the coutries could be rendered. Getting the countries' surfaces would require using triangulation, a rabbit hole I wasn’t particularly keen on entering.

# Project MViz - Update 3

How to do picking (i.e. country selection on mouseclick)?

I came across this project by Steve Hall. In it he makes a 3d map using Three.js and D3 that is responsive to mouseover and click events. He also has a great writeup that shares how he tackled the problem.

At the time, I didn't really understand what the article was saying. But two things I did takeaway were,

1. the use of Three.js’s built-in raycasting to figure out the mouse’s coordinates in 3d space
2. the use of an algorithm to determine if a point is inside a bounded region

# Project MViz - Update 2

One of the elements I want to have is a 3D globe that will show how much money is invested in each country via all the mutual funds managed by the bank.

I don’t want the globe to just be something pretty to look at. It also needs to respond to mouse events such as when a user clicks on a country.

A lot of Googling led me to these useful articles,

# Project MViz - Update 1

My inspiration for this project is Mr. doob’s CSS 3D Periodic Table. (Be sure to check it out!) I saw it about two years ago and it has since been in the back of my mind to use it as a base UI.

Why visualize mutual funds? People’s interaction with mutual funds tend to be very black box. You put down an initial amount and then get something in the mail every month telling you whether it went up or down in value. But what actually happens to your money?

# Three.js Procedural City

I followed this tutorial by Jerome Etienne on generating a procedural city using Three.js.

The tutorial was a way to learn more about Three.js. Most of my time was spent figuring out how to update methods used in the tutorial (r59) that are deprecated in newer versions of Three.js (I was using r73).

See it action here