If you're a web developer looking to leave web and become a graphics programmer this is a great guide. If you're not, and you're a web developer looking to use a new technology without the headache of learning a huge amount of maths, just use three.js and let it handle the hard stuff. It's brilliant.

You'll have to sacrifice a little speed, but it's more than fast enough - as an example I used three.js to make a visualisation to plot 45,000 meteorite strikes on a globe this morning.