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Make use of optimized matrix multiplication routines in osg.

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Modified Files:
	simgear/scene/model/SGTranslateTransform.cxx
This commit is contained in:
frohlich
2009-03-24 08:03:15 +00:00
committed by Tim Moore
parent 403d9b6ac1
commit 45f653167d
1 changed files with 4 additions and 22 deletions
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26
simgear/scene/model/SGTranslateTransform.cxx
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@@ -29,16 +29,6 @@
#include "SGTranslateTransform.hxx"
static inline void
set_translation (osg::Matrix &matrix, double position_m, const SGVec3d &axis)
{
SGVec3d xyz = axis * position_m;
matrix.makeIdentity();
matrix(3, 0) = xyz[0];
matrix(3, 1) = xyz[1];
matrix(3, 2) = xyz[2];
}
SGTranslateTransform::SGTranslateTransform() :
_axis(0, 0, 0),
_value(0)
@@ -59,13 +49,9 @@ SGTranslateTransform::computeLocalToWorldMatrix(osg::Matrix& matrix,
osg::NodeVisitor* nv) const
{
if (_referenceFrame == RELATIVE_RF) {
osg::Matrix tmp;
set_translation(tmp, _value, _axis);
matrix.preMult(tmp);
matrix.preMultTranslate((_value*_axis).osg());
} else {
osg::Matrix tmp;
set_translation(tmp, _value, _axis);
matrix = tmp;
matrix.setTrans((_value*_axis).osg());
}
return true;
}
@@ -75,13 +61,9 @@ SGTranslateTransform::computeWorldToLocalMatrix(osg::Matrix& matrix,
osg::NodeVisitor* nv) const
{
if (_referenceFrame == RELATIVE_RF) {
osg::Matrix tmp;
set_translation(tmp, -_value, _axis);
matrix.postMult(tmp);
matrix.postMultTranslate((-_value*_axis).osg());
} else {
osg::Matrix tmp;
set_translation(tmp, -_value, _axis);
matrix = tmp;
matrix.setTrans((-_value*_axis).osg());
}
return true;
}