Env steam

env_steam is a point entity available in all Source games. It is used to create a jet of steam, or heat wave distortion.

Keyvalue type set to normal on the left and heat wave on the right side.

The entity appears as a cone in Hammer, the shape indicates the direction the emitter outputs the particles (away from the point).

Bug: Color is always white when the map is compiled with VRAD.  [todo tested in ?]

In code, it is represented by theCSteamJetclass, defined in thesteamjet.cppfile.

AltNames: This entity is also tied to env_steamjet.

Note:However, env_steamjet faces left instead of forward.

Flags

Emissive : [1]

Uses the value specified in rendercolor. If not checked, color is automatically determined by environmental lighting.

Keyvalues

Initial State (InitialState) <choices>

Start enabled?

• 0: Off
• 1: On

Particle Type (Type) <choices>

Steam effect type, see image on the top right.

• 0: Normal
• 1: Heat Wave

Spread Speed (SpreadSpeed) <integer>

The amount of random spread in the particle's velocity after they spawn.

Speed (Speed) <integer>

The default speed at which the particles move after they spawn.

Particle start size (StartSize) <integer>

The initial size of the particles after they spawn.

Particle end size (EndSize) <integer>

The size of the particles at the point at which they are removed.

Emission rate (Rate) <integer>

The rate of particle emission. i.e. particles per second.

Length of steam jet (JetLength) <integer>

The length of the jet determines the lifetime of each particle.

How fast does the particles spin (RollSpeed) <float>

Particle roll speed.

Color (R G B) (rendercolor) <color255>

Steam color, only used if Emissive flag is set.

Translucency (renderamt) <integer>

Render alpha value.

Start Sound (StartNoise) <sound> (only in )

Sound to play when starting emission.

Inputs

TurnOn

Turns the steam jet on.

TurnOff

Turns the steam jet off.

Toggle

Toggles the steam jet between on and off.

JetLength <integerRedirectInput/integer>

Sets Length of steam jet.

Rate <integerRedirectInput/integer>

Sets Emission rate.

Speed <integerRedirectInput/integer>

Sets Speed.

SpreadSpeed <integerRedirectInput/integer>

Sets Spread Speed.

Alpha  !FGD

Sets Translucency.

Color  !FGD

Sets Color.