_volume = vol;
if (_volume < 0.0) _volume = 0.0;
if (_volume > 1.0) _volume = 1.0;
-
- sample_map_iterator sample_current = _samples.begin();
- sample_map_iterator sample_end = _samples.end();
- for ( ; sample_current != sample_end; ++sample_current ) {
- SGSoundSample *sample = sample_current->second;
- sample->set_master_volume( _volume );
- }
}
// set the source position and orientation of all managed sounds
void SGSampleGroup::update_pos_and_orientation() {
- static const SGQuatd q(-0.5, -0.5, 0.5, 0.5);
-
SGVec3d position = SGVec3d::fromGeod(_base_pos) - _smgr->get_position();
-
- SGQuatd hlOr = SGQuatd::fromLonLat(_base_pos);
- SGQuatd ec2gl = hlOr*_orientation*q;
+ SGQuatd hlOr = SGQuatd::fromLonLat(_base_pos) * _orientation;
SGVec3f velocity = SGVec3f::zeros();
if ( _velocity[0] || _velocity[1] || _velocity[2] ) {
- velocity = toVec3f( (hlOr*q).backTransform(_velocity) );
+ velocity = toVec3f( hlOr.backTransform(_velocity*SG_FEET_TO_METER) );
}
sample_map_iterator sample_current = _samples.begin();
sample_map_iterator sample_end = _samples.end();
for ( ; sample_current != sample_end; ++sample_current ) {
SGSoundSample *sample = sample_current->second;
+ sample->set_master_volume( _volume );
+ sample->set_orientation( _orientation );
+ sample->set_rotation( hlOr );
sample->set_position( position );
sample->set_velocity( velocity );
- sample->set_orientation( _orientation );
- sample->set_rotation( ec2gl );
}
}
void SGSoundSample::update_pos_and_orientation() {
_absolute_pos = _base_pos;
+#if 0
if ( _relative_pos[0] || _relative_pos[1] || _relative_pos[2] ) {
_absolute_pos += _rotation.backTransform( _relative_pos );
}
+#endif
+ _orivec = SGVec3f::zeros();
if ( _direction[0] || _direction[1] || _direction[2] ) {
- _orivec = toVec3f( _rotation.rotate(_direction) );
+ _orivec = toVec3f( _rotation.rotate( _direction ) );
}
- else
- _orivec = SGVec3f::zeros();
}
string SGSoundSample::random_string() {
_orientation = ori; _changed = true;
}
- inline void set_rotation( const SGQuatd& ori ) {
- _rotation = ori; _changed = true;
+ inline void set_rotation( const SGQuatd& hlOr ) {
+ _rotation = hlOr; _changed = true;
}
/**
_device(NULL),
_context(NULL),
_absolute_pos(SGVec3d::zeros()),
+ _offset_pos(SGVec3d::zeros()),
+ _base_pos(SGVec3d::zeros()),
_velocity(SGVec3d::zeros()),
_orientation(SGQuatd::zeros()),
_devname(NULL)
// run the audio scheduler
void SGSoundMgr::update( double dt ) {
if (_active) {
+ if (_changed) {
+ update_pos_and_orientation();
+ }
+
sample_group_map_iterator sample_grp_current = _sample_groups.begin();
sample_group_map_iterator sample_grp_end = _sample_groups.end();
for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
* one or more vectors have zero length, implementation behavior
* is undefined. If the two vectors are linearly dependent,
* behavior is undefined.
+ *
* This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
*/
SGVec3d sgv_at = _orientation.backTransform(-SGVec3d::e3());
_at_up_vec[3] = sgv_up[0];
_at_up_vec[4] = sgv_up[1];
_at_up_vec[5] = sgv_up[2];
+
+ // static const SGQuatd q(-0.5, -0.5, 0.5, 0.5);
+ // SGQuatd hlOr = SGQuatd::fromLonLat(SGGeod::fromCart(_base_pos));
+ // SGQuatd ec2body = hlOr*_orientation;
+ _absolute_pos = _base_pos; // + ec2body.backTransform( _offset_pos );
}
bool SGSoundMgr::load(string &samplepath, void **dbuf, int *fmt,
* @param pos OpenAL listener position
*/
void set_position( const SGVec3d& pos ) {
- _absolute_pos = pos; _changed = true;
+ _base_pos = pos; _changed = true;
+ }
+
+ void set_position_offset( const SGVec3d& pos ) {
+ _offset_pos = pos; _changed = true;
}
/**
// Position of the listener.
SGVec3d _absolute_pos;
+ SGVec3d _offset_pos;
+ SGVec3d _base_pos;
// Velocity of the listener.
SGVec3f _velocity;