diff options
| -rw-r--r-- | Alc/ALu.c | 17 |
1 files changed, 9 insertions, 8 deletions
@@ -628,17 +628,18 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALsource *ALSource, } // Distance-based air absorption - if(ALSource->AirAbsorptionFactor > 0.0f && ALSource->DistanceModel != AL_NONE) + if(ALSource->AirAbsorptionFactor > 0.0f && flAttenuation < 1.0f) { - ALfloat dist = Distance-MinDist; - ALfloat absorb; + ALfloat absorb = 0.0f; - if(dist < 0.0f) dist = 0.0f; // Absorption calculation is done in dB - absorb = (ALSource->AirAbsorptionFactor*AIRABSORBGAINDBHF) * - (dist*MetersPerUnit); - // Convert dB to linear gain before applying - absorb = pow(10.0, absorb/20.0); + if(flAttenuation > 0.0f) + { + absorb = (MinDist/flAttenuation - MinDist)*MetersPerUnit * + (ALSource->AirAbsorptionFactor*AIRABSORBGAINDBHF); + // Convert dB to linear gain before applying + absorb = pow(10.0, absorb/20.0); + } DryGainHF *= absorb; for(i = 0;i < MAX_SENDS;i++) WetGainHF[i] *= absorb; |