Multiply the given matrix <code>mat</code> this Vector3d, perform perspective division. <p> This method uses <code>w=1.0</code> as the fourth vector component.
@param mat the matrix to multiply this vector by @return this
See Implementation
Multiply the given matrix <code>mat</code> this Vector3d, perform perspective division. <p> This method uses <code>w=1.0</code> as the fourth vector component.
@param mat the matrix to multiply this vector by @return this