Introduction

What is Dynamic Fog & Mist 2?

Dynamic Fog & Mist 2 is a lightweight, high-performance fog effect for Unity's Universal Render Pipeline (URP). It produces animated landscape fog, volumetric mist, and a built-in fog of war system - all from a single post-processing pass.

The effect uses ray-marching and 3D noise to create natural-looking, animated fog volumes that react to lighting conditions. Because the fog is rendered as a screen-space effect, it works on any scene geometry without requiring custom shaders on your objects.

Key Features

Fog Rendering

• Ray-marched volumetric fog - realistic depth-aware fog that respects scene geometry.
• 3D noise animation - turbulence, wind direction and speed produce natural fog movement.
• Height-based density - configurable base altitude and max height for valley or ground fog.
• Distance-based rendering - maximum draw distance for performance control.
• Vertical gradient - color gradient from ground to top for atmospheric depth.

Lighting & Color

• Light scattering - configurable diffusion power and intensity for sun/moon glow.
• Sun color integration - automatically matches the directional light color.
• Tint color & brightness - per-volume color customization.
• Noise color blending - secondary color mixed through the noise pattern.

Fog of War

• Texture-based visibility - a 2D texture controls fog opacity across the world.
• Runtime clearing/restoring - reveal areas as the player explores, with optional auto-restore.
• Built-in editor - paint fog of war masks directly in the Scene view.

Volume System

• Multiple fog volumes - place independent fog areas throughout your scene.
• Sub-volumes - override fog appearance in specific zones with smooth transitions.
• Profile system - save and share fog presets via ScriptableObject profiles.

Requirements

Resources