This example demonstrates how to prepare a terrain with the best possible snow effect.
Except in the rare case where snow covers all the terrain, it is important to apply a color map to your terrain if it does not already have one.
The Snow node does not modify the terrain. Snow is
a color map that is added on top of the existing color map in
places set by the parameters.
The Advanced color map node slightly modifies the terrain by adding a layer of snow. This additional layer can be extracted using the node's last output connector "Snow layer".
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