Godot C# Steam Audio

A Steam Audio integration for Godot 4.2 using C#.

LICENSE.md applies to:

• addons/DynamicAudioBus/AudioBus.cs
• addons/gd_steam_audio/GDSteamAudio.cs
• addons/gd_steam_audio/SteamAudioCollider.cs
• addons/gd_steam_audio/SteamAudioPlayer.cs

Pros/Cons

Pros

• It works on Godot Engine 4.2 Stable, with no engine patches or forks
• It supports C# nicely

Cons

• It requires the Mono/.NET builds of Godot 4.2
• Relatively high audio latency (possibly, not fully tested)
• Not 100% stable
• Supports only static geometry (as of now)
• As of now, there is only the standard/stock Steam Audio Material Presets

Before you Install

Just know that...

• This modifies the Audio Bus Layout for each SteamAudioPlayer. Use names and not indexes on your Audio Buses or use the AudioBus class provided in the source code.
• This addon can sometimes glitch and get loud for short periods of time (less than 1s, but still loud)
• Pausing an audio source is not supported (yet)
• Custom bus outputs are not well tested
• This software likely has some bugs

Install

• Copy the addons folder from this repository into your project
• Install the binary from Steam Audio Releases into addons (don't put the dll or so in a subfolder; use 64-bit binaries when Godot Engine is 64-bit)
• • When exporting a project, these binaries need to be placed next the game executable
• Add <AllowUnsafeBlocks>true</AllowUnsafeBlocks> to your .csproj in the right place
• Under Project -> Project Settings
• • Enable Advanced settings
• • Under Audio -> Driver
• • • Set Mix Rate to 48000
• • • Save and Restart

Scene Setup

• Add a Node in your project which has the script res://addons/gd_steam_audio/GDSteamAudio.cs
• • This node should exist at all times, and there should only be one at any given time
• • Fill out the camera property from the inspector or script
• • • If this is not filled out, Steam Audio won't work.
• Add a Node with the script res://addons/gd_steam_audio/SteamAudioCollider.cs as a child of your CollisionShape3D with shape being a ConcavePolygonShape3D
• Add a Node with the script res://addons/gd_steam_audio/SteamAudioPlayer.cs as a child of your AudioStreamPlayer3D

Credits

Valve Software's Steam Audio

Mirsario's SteamAudio.NET wrapper

"Unity" by Kevin MacLeod

"Unity" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/