Field Weather

A field weather is an object, specifying location of local cloud coverage areas within cloud layers. FieldWeather object makes it possible to create local storms or clouds having their own coverage texture as well as to control their movement. The number of FieldWeather objects on the scene is not limited as their impact on performance is not significant.

See also

To add a weather field in the world via UnigineEditor, do the following:

1. On the Menu bar, choose Create -> Effect -> Field Weather.

   

2. Place the weather field in the world. It doesn't matter if it intersects a CloudLayer object or not, only X and Y coordinates are used.
3. Go to the FieldWeather node's Field tab, and set up necessary parameters.

On the Field tab of the Nodes panel, the following parameters of the weather field can be adjusted:

Setting Bit Masks and Size

Setting Clouds Parameters

Attenuation type	Type of attenuation shape. This parameters determines the way the local clouds of the weather field are mixed with the surrounding clouds. Can be one of the following: Sphere. Box. Attenuation type = Sphere Attenuation type = Box
Attenuation	Attenuation factor indicating how much the coverage texture attenuates starting from the center of the weather field to its edges. By the minimum value of 0, only local coverage texture of the FieldWeather will be visible (the coverage texture of the CloudLayer is totally cut out from the FieldWeather area). The higher the value, the less surrounding clouds (CloudLayer coverage) are cut out from the weather field area. Attenuation = 0.5 Attenuation = 1.5
Power	Determines the contrast of the coverage texture. Makes it possible to gradually increase cloudiness without changing the coverage texture. This parameter is analogous to coverage contrast parameter of the clouds_base material. Notice For this parameter to work properly, the coverage texture must not contain absolutely black pixels.
Coverage texture	An RGB8 coverage texture for a weather field. This texture is analogous to the coverage texture of the clouds_base material.
Wind enabled	Indicates whether the local wind inside the weather field is enabled.
Wind	Wind speed in each direction inside the weather field. The wind along X and Y axes shifts local coverage texture at the specified rates in the corresponding directions. This parameter can be used to animate clouds inside the weather field. The texture shifting is looped inside the field, as the wind affects only its offset. No wind Wind X = 100 Notice Setting wind speed values to zero does not return the texture to its initial state. In order to return the initial state disable local wind by unchecking the Wind enabled option.