Singularity-Viewer/SingularityViewer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

V2 llmath merge

Browse Source
This commit is contained in:
Shyotl
2011-02-22 21:44:04 -06:00
parent b31db27545
commit 7deee9336c
34 changed files with 371 additions and 192 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
indra/llmath/m4math.cpp
View File

@@ -678,32 +678,6 @@ LLVector4 operator*(const LLMatrix4 &a, const LLVector4 &b)
}
*/
// Operates "to the left" on row-vector a
//
// This used to be in the header file but was not actually inlined in practice.
// When avatar vertex programs are off, this function is a hot spot in profiles
// due to software skinning in LLViewerJointMesh::updateGeometry(). JC
LLVector3 operator*(const LLVector3 &a, const LLMatrix4 &b)
{
// This is better than making a temporary LLVector3. This eliminates an
// unnecessary LLVector3() constructor and also helps the compiler to
// realize that the output floats do not alias the input floats, hence
// eliminating redundant loads of a.mV[0], etc. JC
return LLVector3(a.mV[VX] * b.mMatrix[VX][VX] +
a.mV[VY] * b.mMatrix[VY][VX] +
a.mV[VZ] * b.mMatrix[VZ][VX] +
b.mMatrix[VW][VX],
a.mV[VX] * b.mMatrix[VX][VY] +
a.mV[VY] * b.mMatrix[VY][VY] +
a.mV[VZ] * b.mMatrix[VZ][VY] +
b.mMatrix[VW][VY],
a.mV[VX] * b.mMatrix[VX][VZ] +
a.mV[VY] * b.mMatrix[VY][VZ] +
a.mV[VZ] * b.mMatrix[VZ][VZ] +
b.mMatrix[VW][VZ]);
}
LLVector4 operator*(const LLVector4 &a, const LLMatrix4 &b)
{