Lighting effects...?

[Gwyvern]

This question is somewhat straight forward, when i look at things in-game, like a weapon for instance, i notice that somehow, on the same texture, lighting reacts differently to certain parts of the object, for instance a sniper rifle has a metalic sheen to it while the scope lens has a much glassier glow to it, can anybody tell me how this is done?

 

thank you for your time

[Ghogiel]

Material definition is controlled by material and shader settings and the texture maps applied to the mesh.

 

The metal may or may not have an environment map effect applied to it, so metals do some don't. But it's very probably it has a high specular value- which is controlled by the specular map with is located in the normal maps alpha channel.

 

The scope lens probably has the environment map effect on it. I wrote some junk on them:

http://www.fallout3nexus.com/articles/article.php?id=197

http://www.fallout3nexus.com/articles/article.php?id=199

 

there is one inaccuracy in those articles, the first one I think, it was confusing at the time as in the absence of a _em map the specular appears to be automatcially be used as a _em map for some reason.

I should write something on the mater of the other maps, the material and the shaders. I promise I will do something nice in that subject for Skyrim.

Edited August 20, 2011 by Ghogiel