FogMode

Description:

public enum FogMode

The fog mode determines the equation used to calculate the fogging blend factor while fogging is enabled.

The simplest cogl_fog_mode_linear mode determines f as:

  f = end - eye_distance / end - start

Where eye_distance is the distance of the current fragment in eye coordinates from the origin.

Namespace: Cogl

Package: doc

LINEAR -
Calculates the fog blend factor as:
```
  f = end - eye_distance / end - start
```
EXPONENTIAL -
Calculates the fog blend factor as:
```
  f = e ^ -(density * eye_distance)
```
EXPONENTIAL_SQUARED -
Calculates the fog blend factor as:
```
  f = e ^ -(density * eye_distance)^2
```