Snow Grounds? That slip and slide?

How do I achieve snowy grounds, that is slippery for props and such? I tried the default SNOWFLOOR but it didn’t work :C

Noob at hammer xD

add
“$surfaceprop” “ice”
to the vmt

how would one do that? :C

[editline]05:17AM[/editline]

i do not know where the VMT for snowfloor001a is i have GCFscape, can some one help googled, but im still stuck.

The file “snowfloor001a.vmt” is located under “root\hl2\materials\Nature” in “source materials.gcf”.

The properties of “ice” and “snow” “$surfaceprop” have been changed in gmod, and are no longer properly slippery.