All variables below have been described in actions for keyframe. (see previous section)
The variable spdSnowFlake sets how fast snowflakes will fall down.
The variable numSnowFlake sets how many snowflakes will be on screen.
Set variable - ampSnowFlake with amplitude snowflakes should fall down.
The variable Top determinates top of snow falling.
And the last variable - Bottom determinates how deep snowflake will be fall down.
(note: there are no reasons to set it greater than max height of the movie )