   Atmospheric Scattering problem
  I  need  to calculate the Atmospheric Scattering. I  have tried the ATI's way  and NVIDIA's way ,but I dont't   gain the correct result.I'm very hurt for veryl ong time.IF i don't have progess,I may lost my job.    I  tried the code which  is described in http://www.gamedev.net/community/forums/topic.asp?topic_id=461747.  But the result is  dark sky.   Who  have maked the thing? Can you help me? I lost hope!   Thanks you  very much!