I just made a quick test for the LaGG-3, using some simple, plain, 'dummy' textures, just to verify that things were going according to plan. Looking really good! I found a few polygons not showing, due to having defined them in the wrong order, which makes them visible for the opposite side (and hence invisible from the normal direction.) Easy fixes.
Now I have to construct the .tga files. (The collimator lens is already in hand, it being taken from any one of a number of previous sight projects.) There are a total of over 670 polygons to paint, making up more than 3 dozen discrete surface groupings (e.g., outside of collimator cell, inside of collimator cell, top surface of collimator cell, lens surface, top surface of main body. Right surface of main body, right side cover plate face, right side cover plate edge, etc., etc.).
Like some other sights, this will be something like a 70 hour job...
I was surprised to see the original iron sights still showing, which of course means another mesh than the sight mesh (pricel.msh) is used to make these. Another thing to have to track down and eliminate from another mesh.
I really wish the developers had originally dedicated just ONE mesh to the sights. With some planes' sights having parts scattered among two or three meshes, this makes for a far greater potential for conflicts among mods which involve altering these meshes for other cockpit elements. Maddening.