Пример #1
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Object3D::Object3D(const Object3D &f) : _orientation(f.orientation()), _position(f.position()), _scale(f.scale()) {
}
Пример #2
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void Object3D::compose(const Object3D &f) {
  _position=_position+_orientation*f.position();
  _orientation=_orientation*f.orientation();
  _scale=_scale*f.scale(); // !!!! no scale for this ! (difficult to find the orientation after scale)
}
Пример #3
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// linear interpolation this=(1-t)f1+tf2 (i.e. linear interpolation of the translation and the quaternion)
void Object3D::mix(const Object3D &f1,const Object3D &f2,double t) {
  _position.mix(t,f1.position(),f2.position());
  _orientation.mix(t,f1.orientation(),f2.orientation());
  _scale.mix(t,f1.scale(),f2.scale());
}