Overview

Easy Weather is a sky, time of day and weather system for Unity's Universal Render Pipeline (URP). It ships as one prefab. Drop it into a scene and you get a 24 hour day and night cycle, a sun and moon that light the scene, a gradient sky with stars, a galaxy band and an aurora, three cloud layers, cloud shadows on the ground, depth based fog, and weather presets that blend rain, snow and storms in and out.

Features#

• Day and night cycle. A clock with adjustable speed and a day counter. The sun light rotates with the time and switches off at night, with an optional moon light that switches on in its place. See Time Module.
• Lighting and sky colors. Light color, intensity and shadows, the ambient (Trilight) colors, the sky's zenith and horizon colors, and the look of the sun and moon. Each value is either fixed or follows a 24 hour curve or gradient. See Celestial Module.
• Three cloud layers. Generated 3D clouds you can fly through, a 2D cloud layer painted on a sky dome, and a cheaper far layer for the horizon. See Cloud Module and Volumetric clouds.
• Cloud shadows. The 2D and 3D clouds darken the ground through a light cookie on the sun. See Cloud shadows.
• Fog. Fog painted on the sky dome plus screen space volumetric fog drawn by a URP renderer feature. Both share one color that follows the time of day. See Fog.
• Night sky. Stars, a galaxy band and an aurora. See Detail Module.
• Weather. Presets that spawn particle prefabs, play sounds and blend sky, light, ambient, cloud, fog, night sky and post processing values in and out. Weather can be picked automatically every day or started from your own code. See Weather Effects Module and Weather presets.
• Events. UnityEvents for every in-game second, minute and hour, for sunrise, sunset, day and night, for named times of day and for weather changes. See Events Module.
• Lens flare occlusion. A depth based pass that fades the sun's lens flare behind leaves, rocks and buildings, without colliders. See Lens flare occlusion.
• Quick Start window. Checks the project and the scene, fixes most problems with one click and adds the system to a scene. See Quick Start window.

The system also runs in Edit Mode. The Scene view shows the sky, clouds and lighting for the current time while you work, and scrubbing the clock in the inspector updates them immediately.

Requirements#

The Quick Start window checks every one of these and fixes most of them for you.

Package contents#

Everything is imported into Assets/Kaira Digital Arts/EasyWeather.

Where to start#

1. Installation: import the package and prepare the project.
2. Getting started: add the system to a scene and see a day go by.
3. Demo scene: fly around a finished scene and switch weather with the number keys.
4. System overview: how the prefab is put together.
5. Scripting guide: drive time and weather from your own code.

If something does not work, see Troubleshooting and the FAQ.

Support#

If something is not covered here, write to support@kairadigitalarts.com. Include your Unity version, your URP version and the rows the Quick Start window shows in red. The asset's store page is assetstore.unity.com/packages/slug/344706.