Greetings,
I am trying to hack together the simplest example possible of sound intensity
changing by distance from the sound source with osgAudio. From the example
source code I have hacked together the following commands:
Code:
osgAudio::SoundManager::instance()->init(32);
osgAudio::SoundManager::instance()->getEnvironment()->setGain(0.5);
osgAudio::SoundManager::instance()->getEnvironment()->setDistanceModel(osgAudio::InverseDistance);
osgAudio::SoundManager::instance()->getEnvironment()->setDopplerFactor(1);
osgAudio::SoundState *musicSoundState;// =
osgAudio::SoundManager::instance()->findSoundState("music");
musicSoundState = new osgAudio::SoundState("music");
// ALlocate a hw source so we can loop it
musicSoundState->allocateSource( 10 );
// Create a new filestream that streams samples from a ogg-file.
osgAudio::FileStream *musicStream = new
osgAudio::FileStream("FILEPATH/44100_1chan.ogg");
// Associate the stream with the sound state
musicSoundState->setStream( musicStream );
// Loop the sound forever
musicSoundState->setLooping( true );
musicSoundState->setRelative(true);
musicSoundState->setPosition(osg::Vec3(0,0,0));
musicSoundState->setReferenceDistance(10);
musicSoundState->setRolloffFactor(1);
// Start playing the music!
musicSoundState->setPlay( true );
// Add the soundstate to the sound manager so we can find it later on.
osgAudio::SoundManager::instance()->addSoundState( musicSoundState );
//}
osgAudio::SoundNode *sound_node = new osgAudio::SoundNode;
sound_node->setSoundState(musicSoundState);
root->addChild(sound_node);
Then later I have
Code:
osg::ref_ptr<osgAudio::SoundRoot> sound_root = new osgAudio::SoundRoot;
viewer->setCameraManipulator(new TrackballManipulator());
sound_root->setCamera( viewer->getCamera() );
However, when I run this the audio sounds ambient. I don't know if the audio
is somehow sticking to the camera, or if it is actually running in ambient
mode, but distance from (0,0,0) has no effect on sound volume. I have tried
setting ambient to false with no affect.
Does anyone see where I am going wrong?
Thanks.
Matt[/code]
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=33096#33096
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
