Snowify

With Snowify you can easily turn your game into a winter wonderland.

This easy-to-use tool generates snow-meshes for your assets, automatically unwrapped and textured.
You have complete control over the snow's thickness, angle, and various other settings.

Works with Unity and Unity Pro.

More info (and video demonstration) here.
If you have any questions, comments or suggestions, please contact me by pm on the unity forum

note:
-The jeep, f16 and house in the screenshots are not included in this package, but are available for free on the unity asset store: jeep, f16, house
-It can be set up to not create snow in covered areas, however, this is an approximation, and the result will depend on the topology and detail of the source mesh.
-Does not work well with transparent objects, because the snow is generated based on the source object's mesh.

Release Notes

Version 1.4: New Feature: - Snow can automatically be set as child of it's source object. Bug fixes and improvements: - Fixed error when creating snow with Height Segments set to 1. - Created algorithm to improve the snow's look. (The snow had strange looking topology in some cases when created on top of hard edges with small normal difference.) And added the Soft Edge Angle parameter to control it. - Added Unity5 version. Version 1.3: New Feature: - Generate Lightmap UV: snow meshes can now be generated with lightmap UV in uv2, just like imported meshes. Bug fixes and improvements: - Fixed a bug causing snow meshes to have incorrectly connected triangles in semi-rare cases. - Decreased calculation time for creating snow a bit. Version 1.2: New Features: - Save & Load: Temporarily save and load snow meshes in the scene to easily switch between different snowified results. - Snowify Terrain Tool: a new separate tool that paints snow on a terrain (with similar settings as the Snowify tool).