Environment System | Day Night, Weather, Lightning

Environment System is a flexible and practical solution for creating dynamic environments in Unity. Bring your scenes to life with realistic day/night transitions, changing weather, procedural volumetric clouds, atmospheric fog, wet surfaces, puddles, and indoor weather protection.

Designed for Built-in, URP, and HDRP, the system provides modular components, configurable weather presets, smooth transitions, and editor tools to simplify environment setup and testing.

Use Environment System as a standalone solution or extend it with the optional Game Creator 2 visual scripting integration.

Key Features

☀️ Day & Night System

• Automatic day/night cycle with configurable time progression.
• Custom sunrise and sunset times.
• Sun and moon visual support.
• Day and night skyboxes with smooth transitions.
• Optional skybox rotation.
• Play Mode Time Control: Adjust the time of day directly in the Inspector using a slider.
• Pause and resume time progression without stopping gameplay.

🌦️ Dynamic Weather System

• Configurable Weather Presets.
• Smooth weather transitions.
• Random weather generation.
• Custom weather types.
• Fog, ambient lighting, skybox, audio, and VFX controls.
• Weather-driven cloud and atmospheric changes.
• Storm lightning with thunder audio and visual effects.

☁️ Procedural Volumetric Clouds

• Support for Built-in, URP, and HDRP.
• Adjustable cloud coverage, density, altitude, thickness, wind, and colors.
• Time-of-day lighting integration.
• Weather Preset cloud overrides.
• Smooth cloud transitions.
• Temporal reprojection and quality optimization.
• Native HDRP Volumetric Clouds integration and an alternative procedural rendering mode.

🌫️ Fog & Atmospheric Effects

• Global fog controls through Weather Presets.
• Custom Fog Plane system for ground mist and atmospheric layering.
• Multiple fog layers with customizable density, opacity, noise, and movement.
• Reusable Fog Plane Presets.
• Smooth fog transitions.
• Weather-driven Fog Plane overrides.
• Live Weather Preset Preview: Preview Fog and Ambient Lighting changes directly in Scene View without Play Mode (Built-in/URP).

💧 Surface Wetness System

• Smooth surface wetting and drying.
• Weather-driven wetness based on Weather Presets.
• Manual wetness control and transitions.
• Surface darkening and smoothness effects.
• Optional Wetness Masks for localized control.
• Support for compatible Standard, URP Lit, and HDRP Lit materials.
• Local puddle areas with configurable appearance.
• Pipeline-specific puddle decals.
• Animated procedural rain ripples.
• Play Mode wetness controls.
• Optional Edit Mode preview and setup validation tools.
• Wetness state save/load integration.

🏠 Indoor Weather Protection

• Indoor Weather Zones for rooms, buildings, and sheltered areas.
• Automatic detection when a player or camera enters or leaves an indoor zone.
• Manual indoor/outdoor control.
• Configurable transitions when entering or leaving protected areas.
• Precipitation exclusion inside protected zones.
• Fog Plane exclusion with adjustable edge blending.
• Protection for wettable surfaces, puddles, and rain ripples.
• Support for overlapping indoor zones.
• Optional fog, precipitation, and lightning suppression for the local viewer.
• No player reference required for permanent zone protection.

Indoor weather protection works alongside the existing weather and time systems without stopping their progression.

🛠️ Editor Tools & Workflow

• Play Mode Time Slider and Pause/Resume controls.
• Live Weather Preset Preview.
• Surface Wetness Inspector and debug information.
• Optional Surface Wetness Edit Mode preview.
• Setup validation tools.
• Weather and atmospheric demo scenes.
• Wetness demonstration tools and sample materials.
• Quick creation of Fog Plane, Surface Wetness Manager, Wettable Surfaces, and Puddle Areas.

Game Creator 2 Integration

Environment System includes optional integration with Game Creator 2, allowing developers to control environment features using visual scripting.

Instructions

• Set time, sunrise, sunset, and day length.
• Change weather and select Weather Presets.
• Configure volumetric clouds and cloud transitions.
• Control Fog Plane settings and presets.
• Control Surface Wetness, puddles, and rain ripples.
• Enter or exit indoor weather protection.
• Enable or disable Indoor Weather Zones.
• Override global fog density and color.

Conditions

• Day, night, dawn, and dusk checks.
• Weather and custom weather type checks.
• Time comparisons.
• Volumetric cloud state checks.
• Surface wetness level and transition checks.
• Indoor/outdoor state checks.
• Indoor Weather Zone containment.

Triggers

• Weather changes.
• Sunrise and sunset.
• Day and night transitions.
• Cloud transitions and threshold events.
• Surface wetness changes and transitions.
• Wet/dry threshold events.
• Entering and exiting indoor zones.

Properties & Save/Load

• Environment and cloud properties.
• Surface wetness properties.
• Save/load support for time, weather, clouds, and optional Surface Wetness state.

Game Creator 2 integration is optional. The core Environment System works independently.

Ideal For

• Survival and open-world games.
• Adventure and exploration games.
• Horror and atmospheric environments.
• RPG projects.
• Simulation games.
• Dynamic weather and environment prototypes.
• Game Creator 2 projects.

Compatibility & Important Notes

• Supports Built-in, URP, and HDRP with pipeline-specific setup.
• The package is developed on Unity 6.3 LTS.
• Game Creator 2 integration is optional.
• Surface Wetness requires compatible material configurations and explicit setup.
• Decal requirements vary by Render Pipeline.
• Live Weather Preset Preview supports Built-in and URP; HDRP Edit Mode preview is not currently available.
• Indoor Weather Zones can exclude precipitation and Fog Plane effects, but ordinary global fog is not spatially removed from individual rooms.
• Existing scenes and materials are not automatically converted or modified by the optional Wetness system.

Documentation & Support

Full documentation, setup guides, feature references, and troubleshooting:

https://9476764.gitbook.io/assets/environment-system-compatible-with-game-creator-2

Have a question, found a bug, or have a feature suggestion?

Contact: [email protected]

Your feedback helps improve Environment System and shape future updates.