Original link: https://www.youtube.com/watch?v=2TglnmQMzbI
This special snowy effect is carried out through creating effects with random position and random speed(in their available range,for example the y-axis speed is set with "2+2*rnd",it means that the y-speed could be an arbitrary value between 2 to 4).Unlike the method in 1.3,we do not need to make snowy effect with animated BGOs or somethings filling a whole section any more.









