Weather presets

A weather preset is a WeatherEffectData asset: a complete description of one weather. It says how likely it is, when and how long it runs, what it spawns, what it sounds like, and which values it overrides.

Create a preset#

1. In the Project window choose Assets > Create > Easy Weather System > Weather Effect Data, or press + Create New Effect on the Weather Effects Module.
2. Give it an Effect Name. Code finds presets by this name.
3. Add it to the module's Available Effects list.

The inspector has the sections Duration & Timing, Visual Effects, Weather Events, Transitions, Module Overrides and Audio.

Duration and timing#

Visual effects#

effectPrefabs lists the prefabs spawned while the weather runs, usually particle systems. They are created as children of the Weather Effects Module and destroyed when the weather ends. The shipped rain and snow prefabs follow the camera with FollowPlayer.

Any prefab works here, so particle effects from our other packs can be used as weather too:

$7.493D Natural Disaster Particle PackDoğal Afet Parçacık Paketi, kasırga, yağmur, kar ve fırtına gibi 21 gerçekçi parçacık efekti sunar. Hem BIRP hem de URP işlem hatları için özelleştirilebilir, kullanıma hazır sürükle-bırak prefabrikleri içerir.

$7.493D Enviroment & Nature ParticlesYüksek performanslı parçacık paketi, oyununuzun ortamını zenginleştirmek için çeşitli parçacık efektleri içerir.

Weather events#

Each custom event has a name, an enabled switch, a trigger type and a UnityEvent:

TriggerCustomEventByName on the Weather Effects Module fires one by hand.

Transitions#

transitionInDuration and transitionOutDuration (0.1 to 60 seconds, default 5) are how long the overrides take to blend in and back out.

Module overrides#

Each override group has a switch, and every value inside a group has its own tick. A value is driven only when both the group switch and its tick are on. An unticked value is never written, on the way in or out, so a preset can change just the ground ambient, or just the cloud coverage, and leave everything else to the time of day. Ticks are on by default.

Time override#

overrideTime with timeSpeed sets the Time Module's day speed while the weather runs.

Celestial override#

overrideCelestial recolors the sky: sunColor, moonColor, sunsetIntensity, daySkyTopColor (zenith) and daySkyHorizonColor. overrideSunSize with sunSize (off by default) gives a hazy sky a bigger, softer sun.

Light override#

overrideLight sets the sun light itself: lightIntensity (0 to 3), lightColor and shadowStrength. The Celestial override only recolors the sky. Without this group a storm leaves the ground lit at clear day strength. These are plain values, not a dimmer, so a bright overcast can set them higher.

Ambient override#

overrideAmbient sets the Trilight ambient: ambientSkyColor, ambientEquatorColor, ambientGroundColor, ambientIntensity (0 to 2) and groundColorMultiplier. The Celestial Module's cloud darkening of the ambient fades out with the transition, so the colors show as you set them. Use Sky Colors copies the sky override's zenith and horizon colors in.

Cloud and fog override#

overrideCloud drives cloudCoverage (0 to 1.5), cloudDensity, cloudHeight, cloudThickness, cloudBrightness, windDirection and windSpeed, plus the fog values:

Coverage above the level your 3D clouds were generated at hands the overcast to the 2D layer, see Volumetric clouds.

Detail override#

overrideDetail drives starsIntensity, the galaxy (enableGalaxy, galaxyIntensity) and the aurora (enableAurora, auroraIntensity).

Volume override#

overrideVolume with volumeProfile and volumeWeight blends a URP Volume profile in over Transition In and out over Transition Out. Only the overrides ticked inside the profile apply.

Audio#

Helper methods#

Demo presets#

The three presets in Demo/Weather Effects are good starting points.