You should know how to draw things first before dwelling into maths. For eg, look at this one: https://github.com/MathiasPaumgarten/hair/blob/master/source/scri

You should know how to draw things first before dwelling into maths. For eg, look at this one: https://github.com/MathiasPaumgarten/hair/blob/master/source/scripts/hair/App.js https://github.com/MathiasPaumgarten/hair/blob/master/source... and check out drawFinger, its all about drawing an arc. Once you know basics, i think its matter of time that you can produce jaw dropping things like this. coming to maths that you need to learn: learn co-ordinate geometry for all 2d related stuff.