How to make a custom object "chrome" or Transparent?!

[Amnesiaplayer]

One mesh can only have one lambert material. You can have multiple meshes in your model though. For instance, I have a wooden bed in my thread over here, where the wood is one material and the sheets is another. The textures are in two files.

You can do that by adding another object (mesh) to your model. Do NOT merge them into one though, or else you'll be forced to use a single texture file. Once you have two objects, hold right click and "Assign favorite material > lambert" to give it a new material instead of your existing one. Go to the channel box and assign your other texture to that. It's as simple as that, really. Just remember to keep the two objects separate or it won't work.

Wait, So do I have to start all over again?! What I did was making a lot of Polygons, and I gave each one a "texture" (some 4) like ? I did Assign Material, for all of them.
and then, I just Combined everything.. Did I do it wrong?
also, if I export it to amnesia > Model view, the only thing you can see is his "shield" without texture.. (also, the shield is big as when it was at the begin, but I rescaled the whole turtle, after combining them...