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| author | Dave Parks <none@none> | 2010-06-08 23:13:05 -0500 |
|---|---|---|
| committer | Dave Parks <none@none> | 2010-06-08 23:13:05 -0500 |
| commit | c2da9f5d2cc86af0af34199c53e872fbff22637b (patch) | |
| tree | 326f7e77cf619eb81c5838791b2e4f0a60a032d4 /indra/llmath/v3math.cpp | |
| parent | 2cfc9f57bb22ab732cdc55b5e48ff9a05040d05a (diff) | |
| parent | 22102e41cbf4ce9e1c0d069f111849466e297520 (diff) | |
Merge with viewer-experimental
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 ) |