env_bubbles

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January 2024

GoldSrc

Source Engine

env_bubbles in game, with density set to 6 and frequency set to 2.

env_bubbles is a brush entity available in all Source games. It is used to create a volume in which to spawn rising bubbles. The number and frequency of bubbles can be adjusted.

env_bubbles is obviously intended for use in water, but it can be used outside of water if such an effect is desired.

In code, it is represented by theCBubblingclass, defined in theeffects.cppfile.

Note:Tying a toolstrigger brush to this entity will result in the entity being rendered in-game as a raw brush of said material. It should be set to Nodraw or Invisible instead.

Bug:Doesn't work in Portal 2 with any tool texture.  [todo tested in ?]

Confirm:May be a HammerAddons bug caused by the origin not being set to 0 0 0.

Keyvalues

Bubble density (density) <integer>

Bubble Count in Volume.

Bubble frequency (frequency) <integer>

Bubble emission frequency, in bubbles per second.

Speed of Current (current) <integer>

The speed of the water current in the volume, used to move the bubbles.

Inputs

Activate

Activates the bubbles.

Deactivate

Deactivates the bubbles.

Toggle

Toggles the bubbles on and off.

SetDensity <integerRedirectInput/integer>

Sets the bubble density.

SetFrequency <integerRedirectInput/integer>

Sets bubble emission rate in bubbles per second.

SetCurrent <integerRedirectInput/integer>

Sets current speed in inches per second.

Flags

Start Off : [1]

See also

• env_embers - A similar entity.