temporarily remove listener (viewer) and source offsets. they mess things up

simgear/sound/sample_group.cxx

@@ -318,38 +318,28 @@ void SGSampleGroup::set_volume( float vol )
     _volume = vol;
     if (_volume < 0.0) _volume = 0.0;
     if (_volume > 1.0) _volume = 1.0;
+}
+
+// set the source position and orientation of all managed sounds
+void SGSampleGroup::update_pos_and_orientation() {
+ 
+    SGVec3d position = SGVec3d::fromGeod(_base_pos) - _smgr->get_position();
+    SGQuatd hlOr = SGQuatd::fromLonLat(_base_pos) * _orientation;
+
+    SGVec3f velocity = SGVec3f::zeros();
+    if ( _velocity[0] || _velocity[1] || _velocity[2] ) {
+       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 );
-    }
-}
-
-// 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;
-
-    SGVec3f velocity = SGVec3f::zeros();
-    if ( _velocity[0] || _velocity[1] || _velocity[2] ) {
-       velocity = toVec3f( (hlOr*q).backTransform(_velocity) );
-    }
-
-    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_orientation( _orientation );
+        sample->set_rotation( hlOr );
         sample->set_position( position );
         sample->set_velocity( velocity );
-        sample->set_orientation( _orientation );
-        sample->set_rotation( ec2gl );
     }
 }
 

simgear/sound/sample_openal.cxx

@@ -198,15 +198,16 @@ SGSoundSample::~SGSoundSample() {
 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() {

simgear/sound/sample_openal.hxx

@@ -337,8 +337,8 @@ public:
         _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;
     }
 
     /**

simgear/sound/soundmgr_openal.cxx

@@ -64,6 +64,8 @@ SGSoundMgr::SGSoundMgr() :
     _device(NULL),
     _context(NULL),
     _absolute_pos(SGVec3d::zeros()),
+    _offset_pos(SGVec3d::zeros()),
+    _base_pos(SGVec3d::zeros()),
     _velocity(SGVec3d::zeros()),
     _orientation(SGQuatd::zeros()),
     _devname(NULL)
@@ -244,6 +246,10 @@ void SGSoundMgr::unbind ()
 // 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 ) {
@@ -469,6 +475,7 @@ void SGSoundMgr::update_pos_and_orientation() {
      * 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());
@@ -479,6 +486,11 @@ void SGSoundMgr::update_pos_and_orientation() {
     _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,

simgear/sound/soundmgr_openal.hxx

@@ -157,7 +157,11 @@ public:
      * @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;
     }
 
     /**
@@ -281,6 +285,8 @@ private:
 
     // Position of the listener.
     SGVec3d _absolute_pos;
+    SGVec3d _offset_pos;
+    SGVec3d _base_pos;
 
     // Velocity of the listener.
     SGVec3f _velocity;