Field Weather

A Field Weather is an object that specifies location of local cloud coverage areas within cloud layers. The FieldWeather object allows creating local storms or clouds that have their own coverage texture as well as to control their movement. The number of FieldWeather objects in the scene is not limited as their impact on performance is not significant.

See also#

To add a FieldWeather object in the world via UnigineEditor, do the following:

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

   

2. Place the FieldWeather object 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 Node tab of the Parameters window, and set up necessary parameters.

In the Field Weather section (Parameters window -> Node tab), the following parameters of the FieldWeather object 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 FieldWeather object 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 FieldWeather object to its edges. By the minimum value of 0, only local coverage texture of the FieldWeather object is 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 FieldWeather 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.
Intensity	Determines the degree of impact of the coverage texture of the FieldWeather object on the clouds.
Coverage texture	An RGB8 coverage texture for the FieldWeather object. This texture is similar to the coverage texture of the clouds_base material.
Wind Enabled	Indicates whether the local wind inside the FieldWeather object is enabled.
Wind	Wind speed in each direction inside the FieldWeather object. 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 FieldWeather object. The texture shifting is looped inside the object, 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.