This is how I explain (videogame) rendering to non-rendering (engineers... even if hopefully it's still understandable for some non-programmers as well).
If you have suggestions on how to make it more clear, post a comment!
|A function and its SH approximation|
|dataGraph and the combined 2d plots|
|Original function and fitted one, plotted at an extended range to show extrapolation to Cos(theta)|
|Coast near my hometown|