One to tie in with atmospheric scattering perhaps. Ground Fog -> https://www.opengl.org/discussion_boards/showthread.php/183598-Ground-fog-algorithm http://stackoverflow.com/questions/21549456/how-to-implement-a-ground-fog-glsl-shader http://www.prepar3d.com/wp-content/uploads/2013/10/v2ExampleFog2On.jpg http://wiki.flightgear.org/images/c/c4/Ground_fog01.jpg
One to tie in with atmospheric scattering perhaps.
Ground Fog -> https://www.opengl.org/discussion_boards/showthread.php/183598-Ground-fog-algorithm
http://stackoverflow.com/questions/21549456/how-to-implement-a-ground-fog-glsl-shader
http://www.prepar3d.com/wp-content/uploads/2013/10/v2ExampleFog2On.jpg
http://wiki.flightgear.org/images/c/c4/Ground_fog01.jpg