Wwise SDK 2021.1.14

Portal extent. Defines the dimensions of the portal relative to its center; all components must be positive numbers. The local right and up dimensions are used in diffraction calculations, whereas the front dimension defines a depth value which is used to implement smooth transitions between rooms. It is recommended that users experiment with different portal depths to find a value that results in appropriately smooth transitions between rooms. Extent dimensions must be positive.

AkSpatialAudio.h の 379 行目に定義があります。

参照元 operator=().