From 2d0e0289939d28d1da38600178eb107a9cdbc320 Mon Sep 17 00:00:00 2001 From: Chris Robinson Date: Sun, 18 Mar 2012 08:06:21 -0700 Subject: Base the initial reverb decay on the source's dry path attenuation --- Alc/ALu.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'Alc/ALu.c') diff --git a/Alc/ALu.c b/Alc/ALu.c index d3e16700..c868ad2f 100644 --- a/Alc/ALu.c +++ b/Alc/ALu.c @@ -571,19 +571,21 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) AirAbsorptionFactor*ClampedDist); } - if(WetGainAuto && ClampedDist > 0.0f) + if(WetGainAuto) { + ALfloat ApparentDist = 1.0f/maxf(Attenuation, 0.00001f) - 1.0f; + /* Apply a decay-time transformation to the wet path, based on the * attenuation of the dry path. * - * Using the distance from the minimum (reference) distance property, - * the initial decay of the reverb effect is calculated and applied to - * the wet path. + * Using the apparent distance, based on the distance attenuation, the + * initial decay of the reverb effect is calculated and applied to the + * wet path. */ for(i = 0;i < NumSends;i++) { if(DecayDistance[i] > 0.0f) - WetGain[i] *= aluPow(0.001f/*-60dB*/, ClampedDist/DecayDistance[i]); + WetGain[i] *= aluPow(0.001f/*-60dB*/, ApparentDist/DecayDistance[i]); } } -- cgit v1.2.3