Computing the Fog Factor
Based on Beer’s Law
- Fog factor has an exponential drop-off with the distance from the viewer f = e-(d z)
- Intuition: Clarity is 100% at 0 meters, but at x + 10 meters is 99% of the clarity at x meters
- at 30 meters, the clarity is (0.99 ? 0.99 ? 0.99)%
- continuous version of this idea is an exponential drop-off