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Changed: Also handle distMax with negative alpha in new manual rolloff function

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kaetemi 2012-06-03 15:56:47 +02:00
parent a3616abd5c
commit 7b6e88dff9
1 changed files with 11 additions and 3 deletions
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14
code/nel/src/sound/driver/source.cpp
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@ -89,9 +89,17 @@ float ISource::computeManualRolloff(double alpha, float sqrdist, float distMin,
float rolloff = distMin / dist;
if (alpha <= -1.0f) return rolloff;
double mb = mbMin * (dist - distMin) / (distMax - distMin);
float mbrolloff = (float)pow(10.0, (double)mb / 2000.0);
return ((1.0 + alpha) * mbrolloff - alpha * rolloff);
if (dist > distMax)
{
// full attenuation of mbrolloff
return (-alpha * rolloff);
}
else
{
double mb = mbMin * (dist - distMin) / (distMax - distMin);
float mbrolloff = (float)pow(10.0, (double)mb / 2000.0);
return ((1.0 + alpha) * mbrolloff - alpha * rolloff);
}
}
else
{