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| author | Rider Linden <rider@lindenlab.com> | 2015-09-29 14:16:58 -0700 |
|---|---|---|
| committer | Rider Linden <rider@lindenlab.com> | 2015-09-29 14:16:58 -0700 |
| commit | 2fe0c321095a8a97ad8d9033430f8cbd4ceddd14 (patch) | |
| tree | 47f6552b8279e009aa0d6fe5f0310b4926e14601 /indra/llmath/m4math.cpp | |
| parent | 83836d91178235e5c188020ac57c9a296343e83b (diff) | |
| parent | 2d52b62e67cf46222396c724d00d2de874819197 (diff) | |
DRTVWR-409: merge DRTVWR-368
Diffstat (limited to 'indra/llmath/m4math.cpp')
| -rwxr-xr-x | indra/llmath/m4math.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/indra/llmath/m4math.cpp b/indra/llmath/m4math.cpp index 6a1b4143cf..d89c482804 100755 --- a/indra/llmath/m4math.cpp +++ b/indra/llmath/m4math.cpp @@ -274,6 +274,19 @@ const LLMatrix4& LLMatrix4::invert(void) return *this; } +// Convenience func for simplifying comparison-heavy code by +// intentionally stomping values in [-FLT_EPS,FLT_EPS] to 0.0f +// +void LLMatrix4::condition(void) +{ + U32 i; + U32 j; + for (i = 0; i < 3;i++) + for (j = 0; j < 3;j++) + mMatrix[i][j] = ((mMatrix[i][j] > -FLT_EPSILON) + && (mMatrix[i][j] < FLT_EPSILON)) ? 0.0f : mMatrix[i][j]; +} + LLVector4 LLMatrix4::getFwdRow4() const { return LLVector4(mMatrix[VX][VX], mMatrix[VX][VY], mMatrix[VX][VZ], mMatrix[VX][VW]); |