IG Editor Plugin

To set up a custom weather region, do the following:

1. Go to Tools->Image Generator Plugin->Meteo.
2. Click Add Region and then press the Edit Region button to start editing the newly created region in the world.
3. Select and use handle nodes in the world to specify the region shape (you can add a cloud layer to see the region boundaries more clearly).

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     The rectangle shape type supports translation and scale of the rectangle regional area.

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     For the polygon shape type the handles can be moved, reordered, added, and deleted. This way you can make a region of any custom shape you require.

The following buttons are provided to setup a region:

• Add Region - adds a region
• Remove Region - removes the selected region
• Edit Region - enables edit mode for the selected region

You can save the region via the Save Region Mask button as a texture on a disk, so later it can be used as a Clouds Region Mask value for a defined layer type of various clouds materials.

Meteo Presets store the data about regions with layers and their parameters to a file of special format (*.igmeteo). The IG:Meteo window allows you to use presets the following ways:

• Save - saves the region on a disk as a meteo preset
• Load - loads the meteo preset from a disk

• Base Layer - base layer without any visual representation. Contains only parameters (visibility distance, temperature, humidity, etc.).
• Cloud Layer - layer that describes the clouds
• Precipitation Layer - layer that describes the precipitation (rains or snow)

To add a new layer to a region, do the following:

1. Select the region in the left Regions list and click the required Add Layer button.
2. Increase the Coverage parameter to make the layer affect the weather.
3. Set the Elevation and Thickness parameters to adjust the layer’s height and size (in meters).
   
   You can use the scroll manipulator to set the elevation and thickness parameters visually (changes will be reflected in the viewport).
4. Depending on the type of the layer (base, cloud, precipitation), you must specify its properties.
5. In order to see the cloud/precipitation node in the world, click the Show Node button.
6. If you want to delete the added layer, select it and click the Remove Layer button.

Specifies the type of cloud for the given layer. Can be one of the types specified for this project via the Cloud Types window.

Upon selection of a cloud type the recommended parameters are automatically set for this type of clouds.

Setting Up Clouds#

Specifies the type of precipitation:

• -1: None - no precipitation is set for this layer
• 1: Rain - raindrops
• 2: Snow - snowflakes

Setting Up Precipitations#

To adjust the lighting appearance for the corresponding layer, select it in the Layers list and specify the required frequency of lighting spawn.

The maximum frequency that can be set via the IG Editor Plugin is once per second.

Specifies wind properties for this layer by setting the direction and force of the wind.

• Direction - wind direction inside the layer
• Wind Force - force of the wind for the layer