env_volumetric_fog_volume

The env_volumetric_fog_volume entity

env_volumetric_fog_volume is a point entity available in SteamVR Home and Half-Life: Alyx.

Entity description

Sets a user bounding volume for volumetric fog - if one of these are in the map then all fog will get clamped to it. More than one then fog gets rendered if it's inside any of them.

Keyvalues

Box Mins (box_mins) ([todo internal name (i)]) <vector>

Box Maxs (box_maxs) ([todo internal name (i)]) <vector>

Fog strength (FogStrength) ([todo internal name (i)]) <float>

Technically the scattering value. Higher values make denser fog.

Falloff Exponent (FalloffExponent) ([todo internal name (i)]) <float>

Controls the fall off curve for the fog at the edges.

Falloff Shape (Shape) ([todo internal name (i)]) <choices>

Value	Description
0	Linear (Box) Falloff
1	Radial (Sphere) Falloff

Source 2 Targetname:

Name (targetname) <string>

The targetname that other entities refer to this entity by.

Entity Scripts (vscripts) <scriptlist>

Space delimited list of VScript files (without file extension) that are executed after all entities have spawned. The scripts are all executed in the same script scope, later ones overwriting any identical variables and functions.

Create Client-Only Entity (clientSideEntity) <choices>

• 0: No
• 1: Yes

Source 2 Hierarchy:

Parent (parentname) <targetname>

Specifies a movement parent. An entity will maintain its initial offset from its parent.

Parent Model Bone/Attachment Name (parentAttachmentName) <string>

The name of the bone or attachment to attach to on the entity's parent in the movement hierarchy. Use !bonemerge to use bone-merge style attachment.

Model Attachment position offset (local.origin) <coordinates>

Offset in the local space of the parent model's attachment/bone to use in hierarchy. Not used if you are not using parent attachment.

Model Attachment angular offset (local.angles) <angles>

Angular offset in the local space of the parent model's attachment/bone to use in hierarchy. Not used if you are not using parent attachment.

Model Attachment scale (local.scales) <vector>

Scale in the local space of the parent model's attachment/bone to use in hierarchy. Not used if you are not using parent attachment.

Use Model Attachment Offset (useLocalOffset) <boolean>

Whether to respect the specified local offset when doing the initial hierarchical attachment to its parent.

Source 2 Transform:

Origin (origin) <coordinates>

The world space origin of the entity.

Angles (angles) <angles>

The pitch, yaw, roll orientation of the entity.

Scale (scales) <vector>

The x, y, z scales of the entity. Not all entities can use this.

Transform Locked (transform locked) <boolean>

Lock the transform at its current value, preveting the transform of the node from being modified.

Force Hidden (force hidden) <boolean>

Visually hides the entity from the viewports. The Outliner pane will still list hidden entities.

Editor Only (editor only) <boolean>

Entity is only displayed in Hammer and will not appear in game.