---
name: "Ambient Parameters"
type: topic
source: https://community.bistudio.com/wiki/Ambient_Parameters
revid: 291487
updated: 2021-08-07T11:43:01Z
---

# Ambient Parameters

See also [getAllEnvSoundControllers](../commands/getAllEnvSoundControllers.md), [SoundControllers](../topics/Sound~3A_SoundControllers.md).

Dynamic ambient parameters:

- **rain** 0..1 rain intensity
- **windy** 0..1 wind streght (0 m/s ->0, 20 m/s -> 1)
- **night** 0..1 night "intensity"
- **deadBody** 0..1 is the place close to a dead body? (0 m ->1, 10 m -> 0)

Static ambient parameters:

- **meadow** 0..1 how much does the surrounding have a character of a meadow
- **trees** 0..1 how many trees are growing in the area
- **forest** 0..1 forest density
- **hills** 0..1 how much is the place "hilly" (160 ASL -> 0, 400 ASL -> 1)
- **houses** 0..1 how many houses or other building are around
- **sea** 0..1 is the place close to a sea? (0 m->1, approx. 100 m->0)
- **waterDepth** 0..M where M is the actual water depth, and 0 on land.
- **camDepth** 0..1 ???

Operators:

- mathematical operators
- **randomGen N** float from 0 to N
- **factor [p,q]** (V-p/q-p) if p <= V <= q, 0 otherwise
- **interpolate [p,q,r,s]** (V-p/q-p)*(s-r) + r

Parameters can be combined into [Simple Expressions](../topics/Simple_Expression.md), like:

```cpp
"meadow * (1 - rain) * (1 - night)"
"(10 - (5 * rain)) * (1 - sea) * (windy factor [0.2, 0.5])"
"sea - waterDepth" // neat way to retrieve the loveliest beaches/coastal places
"sea - waterDepth + (waterDepth factor [0.05, 0.5])" // ...even more fine tuning w.r.t water depth using factor!
```

<sub>Source: [BI Community Wiki — Ambient Parameters](https://community.bistudio.com/wiki/Ambient_Parameters) (revision 291487).</sub>