Hi, I am using these two methods: setViewMatrixAsLookAt(eye, center, up) and getViewMatrixAsLookAt(&eye, ¢er, &up) with the viewer's camera in this order and WITHOUT manipulating the camera elsewhere in my code. I don't have much experience with OSG but isn't the last method supposed to return in the eye, center and up objects the same parameters that I have used to set the view matrix before? I've made a simple test:
viewer.getCamera()->setViewMatrixAsLookAt(osg::Vec3f(10., -10., 2.), osg::Vec3f(0., 0., 0.), osg::Z_AXIS); osg::Vec3f eye; osg::Vec3f center; osg::Vec3f up; viewer.getCamera()->getViewMatrixAsLookAt(eye, center, up); cout << "eye " << eye.x() << " " << eye.y() << " " << eye.z() << endl; cout << "center " << center.x() << " " << center.y() << " " << center.z() << endl; cout << "up " << up.x() << " " << up.y() << " " << up.z() << endl; And what I've got from the cout's was: eye: 10 -10 2 (OK) center: 9.29986 -9.29986 1.85997 up: -0.0990148 0.0990148 0.990148 What am I doing wrong here? Did I misunderstand the purpose of the method? Renan M Z Mendes
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