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Set head-relative for sources near the listener

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This matches the behavior of the FMOD backend
This commit is contained in:
Chris Robinson 2016-05-16 17:02:39 -07:00
parent 9e847c252b
commit fe966916d7
1 changed files with 33 additions and 5 deletions
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38
src/sound/oalsound.cpp
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@ -1460,7 +1460,17 @@ FISoundChannel *OpenALSoundRenderer::StartSound3D(SoundHandle sfx, SoundListener
}
dir += listener->position;
alSource3f(source, AL_POSITION, dir[0], dir[1], -dir[2]);
if(dist_sqr < (0.0004f*0.0004f))
{
// Head relative
alSourcei(source, AL_SOURCE_RELATIVE, AL_TRUE);
alSource3f(source, AL_POSITION, 0.f, 0.f, 0.f);
}
else
{
alSourcei(source, AL_SOURCE_RELATIVE, AL_FALSE);
alSource3f(source, AL_POSITION, dir[0], dir[1], -dir[2]);
}
}
else
{
@ -1478,12 +1488,21 @@ FISoundChannel *OpenALSoundRenderer::StartSound3D(SoundHandle sfx, SoundListener
dir += listener->position;
}
alSource3f(source, AL_POSITION, dir[0], dir[1], -dir[2]);
if(dist_sqr < (0.0004f*0.0004f))
{
// Head relative
alSourcei(source, AL_SOURCE_RELATIVE, AL_TRUE);
alSource3f(source, AL_POSITION, 0.f, 0.f, 0.f);
}
else
{
alSourcei(source, AL_SOURCE_RELATIVE, AL_FALSE);
alSource3f(source, AL_POSITION, dir[0], dir[1], -dir[2]);
}
}
alSource3f(source, AL_VELOCITY, vel[0], vel[1], -vel[2]);
alSource3f(source, AL_DIRECTION, 0.f, 0.f, 0.f);
alSourcei(source, AL_SOURCE_RELATIVE, AL_FALSE);
alSourcei(source, AL_LOOPING, (chanflags&SNDF_LOOP) ? AL_TRUE : AL_FALSE);
alSourcef(source, AL_MAX_GAIN, SfxVolume);
@ -1724,9 +1743,18 @@ void OpenALSoundRenderer::UpdateSoundParams3D(SoundListener *listener, FISoundCh
dir += listener->position;
alDeferUpdatesSOFT();
ALuint source = GET_PTRID(chan->SysChannel);
alSource3f(source, AL_POSITION, dir[0], dir[1], -dir[2]);
if(chan->DistanceSqr < (0.0004f*0.0004f))
{
alSourcei(source, AL_SOURCE_RELATIVE, AL_TRUE);
alSource3f(source, AL_POSITION, 0.f, 0.f, 0.f);
}
else
{
alSourcei(source, AL_SOURCE_RELATIVE, AL_FALSE);
alSource3f(source, AL_POSITION, dir[0], dir[1], -dir[2]);
}
alSource3f(source, AL_VELOCITY, vel[0], vel[1], -vel[2]);
getALError();
}