You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
openmw-tes3mp/components/sceneutil/positionattitudetransform.cpp

52 lines
1.3 KiB
C++

#include "positionattitudetransform.hpp"
#include <iostream>
namespace SceneUtil
{
PositionAttitudeTransform::PositionAttitudeTransform():
_scale(1.0,1.0,1.0)
{
}
bool PositionAttitudeTransform::computeLocalToWorldMatrix(osg::Matrix& matrix, osg::NodeVisitor*) const
{
if (_referenceFrame==RELATIVE_RF)
{
matrix.preMultTranslate(_position);
matrix.preMultRotate(_attitude);
matrix.preMultScale(_scale);
}
else // absolute
{
matrix.makeRotate(_attitude);
matrix.postMultTranslate(_position);
matrix.preMultScale(_scale);
}
return true;
}
bool PositionAttitudeTransform::computeWorldToLocalMatrix(osg::Matrix& matrix, osg::NodeVisitor*) const
{
if (_scale.x() == 0.0 || _scale.y() == 0.0 || _scale.z() == 0.0)
return false;
if (_referenceFrame==RELATIVE_RF)
{
matrix.postMultTranslate(-_position);
matrix.postMultRotate(_attitude.inverse());
matrix.postMultScale(osg::Vec3f(1.0/_scale.x(), 1.0/_scale.y(), 1.0/_scale.z()));
}
else // absolute
{
matrix.makeRotate(_attitude.inverse());
matrix.preMultTranslate(-_position);
matrix.postMultScale(osg::Vec3f(1.0/_scale.x(), 1.0/_scale.y(), 1.0/_scale.z()));
}
return true;
}
}