Occlusion Definition

The AudioOcclusionDefinition is a configuration primitive that allows you to customize occlusion calculations.

Creation

Create an AudioOcclusionDefinition by navigating to the Content Browser > +Add > Audio > Audio Occlusion category.

Configuration

This is an example of AudioOcclusionDefinition which ships with Audio Occlusion plugin by default.

• Evaluators: A list of evaluators used for occlusion calculations. These evaluators execute ray tracing logic and generate the Value for Plugin.AudioOcclusion.
  • Influence Section: Defines the distance in centimeters from the previous entry. For example, with entries 0, 100, and 100:
    • The 1st section ranges from 0 cm to 100 cm.
    • The 2nd section ranges from 100 cm to 200 cm.
    • The 3rd section extends from 200 cm to the Max Falloff Distance.
  • Evaluator: The class used for performing the calculation.
• Audio Occlusion Channel: Trace channel used for occlusion tracing
• Trace Complex: Use complex collision for tracing or not
• Max Falloff Distance: Beyond this distance, no traces are thrown as the sound is considered too far away.