Skip to content

Lighting & Weather

Lighting

The lighting setup affects weather presets and how the Sun illuminates the scene throught the day cycle. The europe_autumn_env_setup lighting setup is added to the scene by default. To change the setup:

  1. Delete the europe_autumn_env_setup lighting setup from the scene: select the prefab in the scene_art section in Outliner and press Delete:

  2. Add a new lighting setup prefab: in Outliner, right-click the scene_art section, click Create, and select one of the following prefabs:

    • desert_afterstorm_env_setup
    • desert_hotday_env_setup
    • desert_sandstorm_env_setup
    • europe_autumn_env_setup
    • europe_summer_env_setup
    • tundra_summer_env_setup

  3. Recalculate lighting and cubemaps:

    1. Click in the Viewport toolbar,
    2. Click Recalculate Lighting and wait for the process to finish.
    3. Click Recalculate Cubemaps and wait for the process to finish.

  4. Change the weather settings if needed.

Weather

The weather settings are modified in the lighting setup. To open the weather settings, open the scene_art > _env_setup > weather_manager prefab in Outliner:

Weather Manager is a special prefab that contains all weather settings.

Info

In the weather settings, often the abbreviation SFX is used, meaning Special Effects (not Sound Effects).

  • Properties — not used in weather setup.

  • Global Settings — settings used for all weather presets.

    • Daytime Params:

      • Freeze Weather — do not change the weather thoughout the day.
      • Freeze Daytime — do not change the time of day.
      • Random Presets — choose the next weather condition at random.
      • Initial Daytime (Min) / Initial Daytime (Max) — initial daytime is set at random between the specified min and max values.
      • Set daytime in minutes — instead of the speed of the daytime, specify in minutes how long the day lasts.
      • Daytime Speed / Daytime Duration — how fast the time changes or the duration of the day in minutes.
      • Scale daytime speed during day — change the speed of the Sun throughout the day.

    • Gameplay params — weather parameters that are used for gameplay, game events or to activate an effect. 

      • Sunrise/sunset angle — the angle of the Sun at which the sunrise/sunset begins. Affects, for example, the condition for enabling the Haze effect.
      • Solstice angle — the angle of the Sun during Solstice.
      • Aerials Opacity In Special Cases — the opacity of aerial objects (clouds, etc.) for special cases: for example, in the Eagle mode.

    • Rain And Wetness Params:

      • Making All Wet Time — the time it takes to make all objects that can be wet have a wetness level of 1 at maximum rain power.
      • Making All Dry Time — the time it takes to make all objects that can be wet have a wetness level of 0 when there is no rain.
      • Rain Density To Power — how the rain density (X) corresponds to the rain power (Y).
      • Rain Fog Density To Power — how the fog density (X) corresponds to the rain power (Y).
      • Rain Density To Drops On Glass Intensity — how the drops on glass intensity (Y) corresponds to the rain power (X).
      • Decals Common Porosity / Imposters Common Porosity — how wet can decals/imposters become. Imposters are simplified models of the objects which replace the original objects at a great distance.
      • Imposters Common Wetness Scale — a separate parameter for tweaking imposters wetness.

  • Daytime SFX effects — constant VFX that are applied throughout the the whole in-game day. For example, fog.

    You can set up the effect to have different power in different moments of the day using the Daytime power spline.

  • Level Mist Presets — not available.

  • Wind mist presets — not available.
  • Lens Flare Scene Actor — the flare prefab in the scene (usually scene_art > _env_setup > dyn_lighting > light > flare). The flare appears when the player looks at the Sun.
  • Initial Weather Condition — the weather with which the scene is loaded by default.

  • Weather conditions — possible weather conditions in the scene. Every weather preset has the following settings:

    • Weight — the probability of this weather condition appearing after the previous one.
    • Duration — the duration of this weather condition.
    • Rain Type — the type of rain used in this weather condition, if any.
    • Lens Flare Power — how powerful is the flare affect when looking at the Sun.

    • Subsets — weather presets inside this weather condition.

      • Blend Time — how long does it take to fully transition into this preset.
      • Start Time After Activation — the duration of this weather preset.
      • Mist Presets — not available.
      • Sfx — which VFX are applied in this weather preset.