diff options
| -rw-r--r-- | indra/newview/llvieweraudio.cpp | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/indra/newview/llvieweraudio.cpp b/indra/newview/llvieweraudio.cpp index 38103f9e41..934981b0ad 100644 --- a/indra/newview/llvieweraudio.cpp +++ b/indra/newview/llvieweraudio.cpp @@ -242,10 +242,29 @@ void audio_update_wind(bool force_update) // outside the fade-in. F32 master_volume = gSavedSettings.getBOOL("MuteAudio") ? 0.f : gSavedSettings.getF32("AudioLevelMaster"); F32 ambient_volume = gSavedSettings.getBOOL("MuteAmbient") ? 0.f : gSavedSettings.getF32("AudioLevelAmbient"); + F32 max_wind_volume = master_volume * ambient_volume; - F32 wind_volume = master_volume * ambient_volume; - gAudiop->mMaxWindGain = wind_volume; - + const F32 WIND_SOUND_TRANSITION_TIME = 2.f; + // amount to change volume this frame + F32 volume_delta = (LLFrameTimer::getFrameDeltaTimeF32() / WIND_SOUND_TRANSITION_TIME) * max_wind_volume; + if (force_update) + { + // initialize wind volume (force_update) by using large volume_delta + // which is sufficient to completely turn off or turn on wind noise + volume_delta = max_wind_volume; + } + + // mute wind when not flying + if (gAgent.getFlying()) + { + // volume increases by volume_delta, up to no more than max_wind_volume + gAudiop->mMaxWindGain = llmin(gAudiop->mMaxWindGain + volume_delta, max_wind_volume); + } + else + { + // volume decreases by volume_delta, down to no less than 0 + gAudiop->mMaxWindGain = llmax(gAudiop->mMaxWindGain - volume_delta, 0.f); + } last_camera_water_height = camera_water_height; gAudiop->updateWind(gRelativeWindVec, camera_water_height); |