Facebook anniversary ray trace
This 3D scene depicts a birthday cake painted with the Facebook icon and a single birthday candle on it.
Source code (POV-Ray): 
facebook-anniversary.pov, facebook-anniversary-debug.pov, facebook-icon.jpg.
Decomposition
Here is the decomposition of the objects in the scene. Each checkerboard square represents exactly 1/10 unit of length in the scene.
| Object | Original view | xz projection | xy projection | yz projection |
|---|---|---|---|---|
| Whole scene | |
 |
 |
 |
| Facebook cake |  |
 |
 |
 |
| Birthday candle |  |
 |
 |
 |
| Candle flame |  |
 |
 |
 |
| Silver cake tray |  |
 |
 |
 |
Object details
- Whole scene
-
- Horizontal field of view is 30° (approximately like a 67 mm lens on a full-frame 35 mm camera), which is a medium focal length
- Contains a square area light above for even lighting and soft shadows
- Almost every object uses bump mapping so that the surfaces don’t look so flat and idealized
- Facebook cake
-
- Image is taken from Wikipedia Commons: https://commons.wikimedia.org/wiki/File:Facebook_icon.jpg
- The shape is a rounded rectangular prism
- Birthday candle
-
- A cylinder with spirals etched out (CSG), plus a cone on top
- Each spiral is approximated with a chain of cylinders and spheres
- Candle flame
-
- An ellipsoid with cloudy emissive media for a glow effect
- Contains an embedded volume light source to light up other objects in the scene
- Silver cake tray
-
- A very fat, short cylinder
- Silver reflective and bumpy surface
- Bottom plane
-
- A boring gray plane that everything sits on
