Inside Macintosh: Apple Game Sprockets Guide /

Chapter 1 - SoundSprocket / SoundSprocket Reference

SoundSprocket Functions / Creating and Managing 3D Sound Sources

SSpSource_GetActualVelocity

You can use the SSpSource_GetActualVelocity function to get the world-space velocity of a sound source.

OSStatus SSpSource_GetActualVelocity (
SSpSourceReference inSourceReference,
TQ3Vector3D *outVelocity);

inSourceReference

A source reference.

outVelocity

On exit, the world-space velocity vector of the sound source.

function result

A result code.

DESCRIPTION

The SSpSource_GetActualVelocity function returns, in the outVelocity parameter, the world-space (that is, the transformed) velocity used in the most recent call to SSpSource_CalcLocalization for the sound source specified by the inSourceReference parameter.