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#ifndef OPENMW_COMPONENTS_NIFOSG_MATRIXTRANSFORM_H
#define OPENMW_COMPONENTS_NIFOSG_MATRIXTRANSFORM_H
#include <components/nif/niftypes.hpp>
#include <osg/MatrixTransform>
namespace NifOsg
{
class MatrixTransform : public osg::MatrixTransform
{
public:
MatrixTransform() = default;
MatrixTransform(const Nif::NiTransform& transform);
MatrixTransform(const MatrixTransform& copy, const osg::CopyOp& copyop);
META_Node(NifOsg, MatrixTransform)
// Hack: account for Transform differences between OSG and NIFs.
// OSG uses a 4x4 matrix, NIF's use a 3x3 rotationScale, float scale, and vec3 position.
// Decomposing the original components from the 4x4 matrix isn't possible, which causes
// problems when a KeyframeController wants to change only one of these components. So
// we store the scale and rotation components separately here.
float mScale{ 0.f };
Nif::Matrix3 mRotationScale;
// Utility methods to transform the node and keep these components up-to-date.
// The matrix's components should not be overridden manually or using preMult/postMult
// unless you're sure you know what you are doing.
void setScale(float scale);
void setRotation(const osg::Quat& rotation);
void setRotation(const Nif::Matrix3& rotation);
void setTranslation(const osg::Vec3f& translation);
};
}
#endif
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