can't believe no one replied to this:

I was just in Austria skiing and I was on the chairlift I was thinking about snow texturing too (sad I know but shows how much of a cg nerd I am! ) anyhoo the best thing will be to model the depth of the snow that you want and then yes use a high frequency bump map and same for the spec map(procedural ones will be fine) and depending on your sunlight options you'll need to add in some sharp shadows etc

let me know how you get on

:bandit:
A