Honestly though, the back of the Earth looks uncannily dark. I mean, this isn't the 18th century. So much nowadays is 24 x 7, especially our cities. Let's represent this with a separate Earth night texture that has city lights.
We have a file for you to use named
earth_night_tex.jpg. Drag a copy of the file into your
It may be a little difficult to discern on this book's page, but this is what the texture image looks like:
To support this, we will create a new
DayNightMaterial class that takes both versions of the Earth texture. The material will also incorporate the corresponding fragment ...