can't find demo scene from first book

[Frank-Buss]

I tried all 4 scene definitions in main.rs, but I can't find the scene with the 3 big spheres and the many small spheres of the first image.

[cbiffle]

For what it's worth, I removed it because it won't render once you've applied the changes from the second book, since it contains no light sources. I'm working on adapting it to the second book's model. Hello from 2.5 years later. :-)