rem: OSGPnt3f p1,p2;
add: Pnt3f p1,p2;
context: void matcheck( OSGMatrix & mat, OSGPnt3f * vec, int nelem ){	OSGPnt3f p1,p2;	int i;		for ( i = 0; i < nelem; i++ )	{		mat.multFullMatrixPnt( vec[i],p2 );		cout << "transforms " << vec[i] << " to " << p2 << endl;			}	cout << endl;}