diff options
| -rw-r--r-- | src/sound_openal.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/sound_openal.cpp b/src/sound_openal.cpp index a425af827..20633404e 100644 --- a/src/sound_openal.cpp +++ b/src/sound_openal.cpp @@ -36,6 +36,7 @@ with this program; ifnot, write to the Free Software Foundation, Inc., #include <AL/alc.h> #include <AL/alext.h> #endif +#include <cmath> #include <vorbis/vorbisfile.h> #include <assert.h> #include "log.h" @@ -331,7 +332,7 @@ public: return; } - alDistanceModel(AL_INVERSE_DISTANCE); + alDistanceModel(AL_INVERSE_DISTANCE_CLAMPED); infostream<<"Audio: Initialized: OpenAL "<<alGetString(AL_VERSION) <<", using "<<alcGetString(m_device, ALC_DEVICE_SPECIFIER) @@ -407,7 +408,7 @@ public: alSource3f(sound->source_id, AL_POSITION, 0, 0, 0); alSource3f(sound->source_id, AL_VELOCITY, 0, 0, 0); alSourcei(sound->source_id, AL_LOOPING, loop ? AL_TRUE : AL_FALSE); - volume = MYMAX(0.0, volume); + volume = std::max(0.0f, volume); alSourcef(sound->source_id, AL_GAIN, volume); alSourcePlay(sound->source_id); warn_if_error(alGetError(), "createPlayingSound"); @@ -428,9 +429,14 @@ public: alSourcei(sound->source_id, AL_SOURCE_RELATIVE, false); alSource3f(sound->source_id, AL_POSITION, pos.X, pos.Y, pos.Z); alSource3f(sound->source_id, AL_VELOCITY, 0, 0, 0); - alSourcef(sound->source_id, AL_REFERENCE_DISTANCE, 30.0); + // Use alDistanceModel(AL_INVERSE_DISTANCE_CLAMPED) and set reference + // distance to clamp gain at <1 node distance, to avoid excessive + // volume when closer + alSourcef(sound->source_id, AL_REFERENCE_DISTANCE, 10.0f); alSourcei(sound->source_id, AL_LOOPING, loop ? AL_TRUE : AL_FALSE); - volume = MYMAX(0.0, volume); + // Multiply by 3 to compensate for reducing AL_REFERENCE_DISTANCE from + // the previous value of 30 to the new value of 10 + volume = std::max(0.0f, volume * 3.0f); alSourcef(sound->source_id, AL_GAIN, volume); alSourcePlay(sound->source_id); warn_if_error(alGetError(), "createPlayingSoundAt"); |