@Zimke:
One question, what shader would you use for mongol armor
Same shader I'm using for everything else, i.e. my customized "moar metal" shader. It's nearly done to the point where I think it's ready; I fixed the bug Docm30 reported and a bunch of other issues relating to how it gets lit indoors. It'll be released when I'm fairly certain that it's ready; unfortunately I've been juggling a bunch of other things at once this month, so I have only been able to work on all the new shaders every few days.
can you recommend me something in order to simulate the fabric to look like a silk? Never tried to simulate a silk look.
That's one of the (many) materials I wrote a new shader for. Silk really needs metallic specular to look good, using the color components of the specular. The closest equivalent in Native is
specular_shader_skin_bump_high or
specular_shader_skin_bump_high_aniso both of which support the "aniso" operation that makes horses have a certain metallic gleam and makes the Khergit Lady Dress have a look that's vaguely like silk.
That's as close as you can get, in Native; with a colored specular it'll look pretty good in OpenBRF but your actual mileage in the engine will vary considerably.