Acoustic Ray Tracing for Unreal Overview

Acoustic Ray Tracing is a feature included in the Meta XR Audio SDK that simulates how sound propagates from its source to the listener based on actual game geometry. This includes early reflections, reverb, occlusion, obstruction, and diffraction. Acoustic Ray Tracing provides the power to quickly and easily achieve realistic acoustics for complex spaces, with controls to fine-tune the response to realize your creative vision. This is an alternative to the lightweight Shoebox Room Acoustics model.

By the end of this document, you’ll be able to:

In Unreal Engine, Acoustic Ray Tracing is configured through components, actors, and project settings in the Unreal Editor. Add Meta XR Acoustic Geometry and Meta XR Acoustic Map components to actors in your scene, place Meta XR Acoustic Control Zone actors in your level, and configure acoustic materials and global settings through the project settings panel (Project Settings > Meta XR Acoustics). By default, the acoustic model is set to Automatic and diffraction is enabled.

Continue on to the Getting Started page to ensure you are set up and understand a quick overview of how to use the features. Afterwards, visit the specific feature page to view the full technical detail about every control offered: