jitter GL model antialias failure, with videoplane behind.

Hi there
I m trying to solve this problem myself but more than a whole day time, i still couldn't find a way.
as the attachment pic & the patch files, I add a videoplane and a gl.model to the jit.gl.render window ,

I selected the antialias option , but it doesn't work , the duck or the model which i read from other obj file, also met this. After that im tring to use the smooth shading attribute, but still not work.
I searched form the forum but most of that is talking about that solve this by @antialias (int) attribute .

So how can I made the cute duck seems smooth ?
Thanx very much:)