- v -

• val() : vpgl_poly_deriv_helper< T, n > , vpgl_poly_deriv_helper< T, 1 > , vpgl_poly_helper< T, n > , vpgl_poly_helper< T, 1 >
• version() : vpgl_geo_camera , vpgl_lvcs
• viewing_distance() : vpgl_affine_camera< T >