My HDR gives me 5fps in daylight but 30fps at night

[meshboy]

What is it that makes it so hard on my frames at daytime, but at night i get very good frames (25-30) with a bad card like my GTX560?

 

Is it the shadows during the day thats killing my FPS? I thought all the lightning should be heavy at night aswell but it seems not.

Edited December 3, 2013 by meshboy

[Topo]

Try "3d on aircraft" shadows.

 

Saluti!

[meshboy]

Ah great man, thanks!