The Let It Snow - DS Shader is based on Stonemason's (with his permission) snow shader from his Winter Kingdom: Castle Ruins product.
With this snow shader for DAZ Studio 3 and DAZ Studio 4, you will be able to cover anything in your runtime with snow, from a little sprinkling to fully covered. You will also be able to select the color of the sheen and scatter value of the snow. This shader maintains your original diffuse, displacement and opacity. This is all done with DS Script with your selection of level and colors from a popup window. By maintaining opacity you will be able to apply snow to leaves, hair and materials like that where transmaps are used.
Also included is a Haze Camera with the same type of controls from a popup window to control the amount of haze and the color.