Got an idea when i saw Seliah's wolf pic 
Just a simple flat plane prop which is parented to the main camera, 6 mats (mc6) and 6 matposes (pz2) included which are transparencies to create snow, 3 types in 2 strengths.
Can add multiple planes, move them around, rescale them to change the look or build up layered effect. the planes will move with the camera so when you move within the scene the snowflakes stay put. if you want the snow flakes to change position, alter the prop position
second image shows example of two snow planes used in front of the main camera.
Just a simple flat plane prop which is parented to the main camera, 6 mats (mc6) and 6 matposes (pz2) included which are transparencies to create snow, 3 types in 2 strengths.
Can add multiple planes, move them around, rescale them to change the look or build up layered effect. the planes will move with the camera so when you move within the scene the snowflakes stay put. if you want the snow flakes to change position, alter the prop position
second image shows example of two snow planes used in front of the main camera.
