Creating Backgrounds
Background Geometry
- A Background node can set background geometry
- Geometry surrounds the viewer at an "infinite" distance
- As the viewer turns, they see different parts of
the geometry
- The viewer can never move closer to the geometry
- Geometry should be on a unit sphere
- The geometry is not lit by scene lights
- Use background geometry to:
- Create sky and ground color gradients
- Build mountain or city skylines
- Do environment maps (ala QuickTimeVR)
