Efficient day

Today was an efficient day. Sometimes it also happens.


I closed 3 hard-to-resolve bugs on XFrontier, one on the game universe manager, and two on the planet engine :

• a random crash while crossing a galactic sector limit
• planet engine : z-order conflict between oceans and volumetric clouds
• planet engine : ugly z-buffer artifacts on the ground, while flying at low altitud.

So happy, 'cause today was an efficient day. Don't happen so often.