Missing effect when passing through clouds

See https://www.sas1946.com/main/index.php/topic,61539.msg747243.html#msg747243

One thing I miss from GE and just found out is a neat effect for flying through clouds with stock game graphics

It's similar to that effect when passing through the high altitude cirrus clouds and it makes disappearing cloud textures unnoticable as we are flying through them Without it (with GE on), the cloud's texture just disappears as I'm flying through it