Blender Procedural Snow

This tool generates snow on the top of any surface in a very natural way.
You can apply the effect to an entire collection if you want too.

It's that all you need to create the perfect winter scene.

You need to use the latest version of Blender

Shaders
It also comes with 2 shaders, one for the snow, and other that simulates frozen surface with you can mix to any material.
The snow shader it's fully procedural, highly customizable and gives you a very natural result. You can control the bump intensity, roughness variation, color, translucency.

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Masking
The snow will gonna be generated naturally on the top of the mesh respecting all of the occluded areas.But you can create a vertex group on the objects that you are applying the effect to use not only as a mask but to control the shape and depth of the snow. You can use that to add footsteps, trails and do all of the look development that you need.