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Properly make the source velocity relative to the listener velocity

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This commit is contained in:
Chris Robinson 2012-03-09 23:53:45 -08:00
parent 7db29a2332
commit f5f519aa80
1 changed files with 15 additions and 13 deletions
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28
Alc/ALu.c
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@ -354,11 +354,12 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
ALboolean WetGainAuto;
ALboolean WetGainHFAuto;
enum Resampler Resampler;
ALfloat Matrix[4][4];
ALfloat Pitch;
ALuint Frequency;
ALint NumSends;
ALfloat cw;
ALint i;
ALint i, j;
DryGainHF = 1.0f;
for(i = 0;i < MAX_SENDS;i++)
@ -443,17 +444,15 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
ALSource->Params.Send[i].Slot = Slot;
}
for(i = 0;i < 4;i++)
{
for(j = 0;j < 4;j++)
Matrix[i][j] = ALContext->Listener.Matrix[i][j];
}
//1. Translate Listener to origin (convert to head relative)
if(ALSource->bHeadRelative == AL_FALSE)
{
ALfloat Matrix[4][4];
for(i = 0;i < 4;i++)
{
ALint i2;
for(i2 = 0;i2 < 4;i2++)
Matrix[i][i2] = ALContext->Listener.Matrix[i][i2];
}
/* Translate position */
Position[0] -= ALContext->Listener.Position[0];
Position[1] -= ALContext->Listener.Position[1];
@ -463,14 +462,17 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
aluMatrixVector(Position, 1.0f, Matrix);
aluMatrixVector(Direction, 0.0f, Matrix);
aluMatrixVector(Velocity, 0.0f, Matrix);
/* Transform listener vectors into listener space */
/* Transform listener velocity into listener space */
aluMatrixVector(ListenerVel, 0.0f, Matrix);
}
else
{
ListenerVel[0] = 0.0f;
ListenerVel[1] = 0.0f;
ListenerVel[2] = 0.0f;
/* Transform listener velocity into listener space */
aluMatrixVector(ListenerVel, 0.0f, Matrix);
/* Offset the source velocity to be relative of the listener velocity */
Velocity[0] += ListenerVel[0];
Velocity[1] += ListenerVel[1];
Velocity[2] += ListenerVel[2];
}
SourceToListener[0] = -Position[0];