Parameters

intermediate concepts

Dynamic Fog & Mist 2 (URP) · Core Concepts

Overview

Dynamic Fog & Mist 2 settings are organized into the DynamicFog component (attached to the fog volume GameObject) and the DynamicFogProfile ScriptableObject. This page documents every parameter.

DynamicFog Component Settings

Parameter	Type	Description
Profile	DynamicFogProfile	ScriptableObject containing all fog appearance settings. Multiple volumes can share the same profile.
Enable Fade	bool	When enabled, the fog volume transitions smoothly as the camera enters or exits the volume boundary, instead of appearing abruptly.
Fade Distance	float	Width of the blend zone at the volume boundary. The fog transitions from 0% at the edge to 100% at Fade Distance units inside.
Fade Controller	Transform	Transform used as the reference point for fade distance calculations (defaults to main camera).
Enable Sub Volumes	bool	Enables sub-volume support for localized fog parameter overrides within this volume.
Show Boundary	bool	Shows the fog volume boundary gizmo in the Scene view for easier placement.
Allow Rotation	bool	Allows the fog volume to rotate with its Transform.

Profile — Appearance

Parameter	Type	Default	Description
Density	float	—	Overall fog intensity multiplier. Scales the height-fog formula output. Higher values produce denser, more opaque fog at all distances. For horizontal viewing, fog accumulates approximately proportionally with distance (fog at 2000m is roughly twice the fog at 1000m).
Height Spread	float	—	Controls the vertical thickness of the fog layer. Internally the shader uses `(1 - value)` as the height decay rate. Higher values (closer to 1) produce a tall fog layer extending above Base Altitude. Lower values (closer to 0) create thin, ground-hugging fog concentrated near Base Altitude. This does not control distance-based falloff; for horizontal viewing, fog accumulates proportionally with distance regardless of this setting.
Start Distance	Pushes fog away from the camera. No fog renders within this distance. Useful to keep nearby objects fog-free.
Base Altitude	float	—	World-space Y position of the fog layer base. Fog density is maximum at and below this altitude and decays exponentially above it based on Height Spread.
Base Altitude Clip	bool	off	When enabled, base altitude acts as a hard clipping plane preventing fog from rendering below it.
Max Height	float	—	Maximum height of the fog volume above the base altitude.
Distance Max	float	—	Maximum rendering distance from the camera. Objects beyond this distance receive no fog.
Tint Color	Color	White	Base tint color applied to the fog.
Brightness	float	1	Overall brightness multiplier for the fog color.
Use Vertical Gradient	bool	false	Enables a vertical color gradient from the base to the top of the fog.
Vertical Gradient	Gradient	—	The color gradient applied vertically when Use Vertical Gradient is enabled.
Box Projection	bool	false	Enables box projection for the fog volume bounds, confining fog to the volume shape.
Depth Clip	bool	true	Clips the fog against scene depth for proper occlusion by geometry.

Profile — Noise & Animation

Parameter	Type	Description
Noise Color Blend	float	Blend factor between the base tint color and the noise color (0 = tint only, 1 = noise only).
Noise Color	Color	Secondary color mixed into the fog through the noise pattern.
Scale	float	Scale of the 3D noise texture. Smaller values produce larger fog wisps.
Turbulence	float	Turbulence intensity for noise variation. Higher values create more chaotic fog shapes.
Speed	float	Animation speed of the fog movement.
Direction	Vector3	Wind direction vector that controls the fog animation direction.
Dithering	float	Dithering strength to reduce color banding artifacts in smooth gradients.

Profile — Lighting

Parameter	Type	Description
Light Diffusion Power	float	Controls the power/spread of light scattering through the fog. Higher values produce tighter scattering cones.
Light Diffusion Intensity	float	Intensity multiplier for light scattering/diffusion. Increase for more pronounced sun glow.
Use Sun Color	bool	When enabled, the fog lighting automatically uses the directional light color for natural day/night transitions.

Fog of War Settings

Parameter	Type	Description
Enable Fog of War	bool	Activates the fog of war system for this volume.
World Center	Vector3	World-space center of the fog of war coverage area.
Coverage Size	Vector3	World-space dimensions of the fog of war area.
Texture Size	int	Resolution of the fog of war texture (power of 2). Larger textures allow finer detail but cost more memory.
Restore Delay	float	Seconds before cleared fog begins restoring. A value of 0 means fog never restores.
Restore Duration	float	Seconds for the fog to fully restore after the delay. A value of 0 means instant change.
Border Smoothness	float	Controls the edge smoothness of cleared fog areas.
Blur	float	Produces a softer transition between clear and opaque fog areas.

Rendering Settings

Parameter	Type	Description
Render Queue	int	Controls the rendering order of this fog volume. Useful when multiple transparent objects overlap.

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