The Advanced snow node generates a layer of snow and applies a snow color map to a terrain at locations defined by parameters.
The node has one input: a terrain with or without a color map. If the terrain input does not have a color map, a neutral color ramp is applied and is visible in places not covered by snow.
The node has three outputs: the terrain to which the snow layer has been added and with an updated color map, the snow mask, and the layer of snow that has been added.
To add an Advanced snow node, right-click in the Graph Editor and select Create Node > Colorize > Advanced snow.
Select the node to open its parameters:
For example, with the parameter Any orientation,
the following snow coverage is achieved:
Here are the results of the Sunny faces only parameter with value of 0:
And Sunny faces only with value of 180:
Tip: Place it after a Colorize or Advanced Colorize node to achieve the desired color for rocks and sediments. The results are interesting if we have sedimental smoothing and rock erosion: they will smooth the ground and add sediment at the bottom of the slopes to give a snow accumulation effect.
With sedimental smoothing and rock erosion:
|Snow color||Sets the snow color.|
|Lowest altitude||Expressed as percentage of the maximum height. Below this value, the color map remains unchanged.|
|Max slope||The angle beyond which the snow does not settle.|
|Roughness||Varies the appearance of the snow.|
|Snowmelt||Chooses if the snow cover is uniform regardless of the orientation, or if faces should be considered as more exposed to the sun and therefore with less snow.|
|Any orientation||Does take into account the orientation of the faces.|
|Sunny faces only||Chooses an orientation (from 0 to 360) to define the faces where the snow melts more.|
|More rules||Adds the Depression filling and Snow flows parameters.|
|Depression filling||Adds snow to places of natural flow.|
|Snow flows||Propagates the snow onto the concave parts of the terrain.|
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