weather regulation

By adjusting the time and weather parameters, to simulate the real weather lighting effect.

It is recommended that you adjust the viewport to simulate a "human" perspective for a more realistic weather lighting effect, as follows:

  1. Click the Scene - Weather Adjustments button to switch to the Sun Positioning and Weather Adjustments Settings panel.
  2. The default time is computer local time, and you can change the effect of sunlight by adjusting the Timeline slider.
  3. Click on Open Weather System to simulate sunny, cloudy, rainy and snowy days.
    • Sunny : Click the Sun button to display the corresponding parameters. The sun offset angle can be set by moving the slider or typing a value to achieve the effect of light changes caused by the rotation of the sun. The range of solar offset angles is [-85,85].
    • Cloudy : Click the Cloudy button to display the corresponding parameters. You can set the volumetric cloud coverage and sun offset angle by moving the slider or typing values to achieve a cloudy effect. Volume cloud coverage values range from [0, 10], the larger the value, the higher the volume cloud coverage, and the solar offset angle values range from [-85, 85].

      • Cloudy effects are shown below.

    • Rain : Click the Rain button to display the corresponding parameters. You can set material humidity and volume cloud coverage by moving the slider or typing values, and particle amount by typing values for a rainy day effect. Material humidity

      • Rainy day effect see below picture.

    • Snow : Click the Snow button to display the corresponding parameters. You can set snow cover and volume cloud cover by moving the slider or typing a value, and you can set the amount of particles by typing a value to achieve the snow effect.

      • Snow effect is shown below.

  4. The skybox function allows users to use HDR format skybox textures as the background of the sky. Before referencing, the corresponding skybox texture material needs to be placed in the designated location of the plugin package. The specific location is as follows:

    5. Custom Sky Box Texture Material Location:\Plugins\SuperMap HiFi 3D SDK for Unreal\Content\Resource\Sky