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| author | Don Kjer <don@lindenlab.com> | 2011-05-17 21:01:36 +0000 |
|---|---|---|
| committer | Don Kjer <don@lindenlab.com> | 2011-05-17 21:01:36 +0000 |
| commit | 0a86e39d90e06f0a690b1ff5caf2dee5fe347f8f (patch) | |
| tree | c0e4f0df907c3f876dafdab3caa83e9356434fa9 /indra/llmath/v3math.cpp | |
| parent | ae8ed3fc2d4a7dda92ad8fdb34bc559478eb9177 (diff) | |
| parent | 79459bc9ba8cefa67091e65dd676f50c9ddc612d (diff) | |
Merge with viewer-development (mesh)
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 18b15e08c4..e7107dee16 100644 --- a/indra/llmath/v3math.cpp +++ b/indra/llmath/v3math.cpp @@ -206,6 +206,28 @@ 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 ) |