Calculated total transmission loss from this path, normalized to the range [0,1] This field will be 0 for diffraction paths where nodeCount > 0. It may be non-zero for the direct path where nodeCount == 0. The path's transmission loss value is the combination of the geometric transmission loss and the room transmission loss, by taking the greater of the two. The geometric transmission loss is calculated from the transmission loss values assigned to the geometry that this path transmits through. If a path transmits through multiple geometries with different transmission loss values, the largest value is taken. The room transmission loss is taken from the emitter and listener rooms' transmission loss values, and likewise, if the listener's room and the emitter's room have different transmission loss values, the greater of the two is used.
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Definition at line 320 of file AkSpatialAudio.h.