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| author | Dave Parks <davep@lindenlab.com> | 2010-04-07 12:39:45 -0500 |
|---|---|---|
| committer | Dave Parks <davep@lindenlab.com> | 2010-04-07 12:39:45 -0500 |
| commit | b6d3d2281b855448bbeec33b2d229222d75cd6b1 (patch) | |
| tree | 99b5c533bcf19a4b02247e601939346b6f2151df /indra/llmath/v3math.cpp | |
| parent | 87cce27de3dd23a40d812a7c9000b1972cb4bca3 (diff) | |
| parent | 3b7b578733867efaeb9359df69df1fe400de0f10 (diff) | |
merge
Diffstat (limited to 'indra/llmath/v3math.cpp')
| -rw-r--r-- | indra/llmath/v3math.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/indra/llmath/v3math.cpp b/indra/llmath/v3math.cpp index 63683ed496..82aad6550b 100644 --- a/indra/llmath/v3math.cpp +++ b/indra/llmath/v3math.cpp @@ -197,6 +197,28 @@ const LLVector3& LLVector3::rotVec(const LLQuaternion &q) return *this; } +const LLVector3& LLVector3::transVec(const LLMatrix4& mat) +{ + setVec( + mV[VX] * mat.mMatrix[VX][VX] + + mV[VY] * mat.mMatrix[VX][VY] + + mV[VZ] * mat.mMatrix[VX][VZ] + + mat.mMatrix[VX][VW], + + mV[VX] * mat.mMatrix[VY][VX] + + mV[VY] * mat.mMatrix[VY][VY] + + mV[VZ] * mat.mMatrix[VY][VZ] + + mat.mMatrix[VY][VW], + + mV[VX] * mat.mMatrix[VZ][VX] + + mV[VY] * mat.mMatrix[VZ][VY] + + mV[VZ] * mat.mMatrix[VZ][VZ] + + mat.mMatrix[VZ][VW]); + + return *this; +} + + const LLVector3& LLVector3::rotVec(F32 angle, const LLVector3 &vec) { if ( !vec.isExactlyZero() && angle ) |