Anti-aliasing Troubles!!!!

HI everyone
I need to draw a ship (3D, of course). the problem is the figure is meant to b real small in the final pgm. right now, the edges are jagged, i’d like to give the edges a more smooth feel.

i’ve already tried GL_LINE_SMOOTH, GL_POINT_SMOOTH, GL_POLYGON_SMOOTH etc… theses simply slow down the image upon rotation, didn’t see much diff in the jaggedness.

Could someone HELP!!!

Use a multisample pixelformat?
Or draw it x-times bigger into a texture and use that as an impostor to draw a filtered billboard. Search for “billboard impostor”.