Opacity Problem

skyline5gtr

Hey guys , i'm making a set of military binoculars. I had 2 texture sets, 1 is the mesh 1 is the glass lens. When I show both individually everything is fine but when i have both layers on at same time the lens layer disappears 

Jerc

Make sure to use a non-translucent shader for the main part so that there is no depth sorting issues with the rendering (probably what is happening here)..
To use 2 different shaders, click on the "Main Shader" button next to your texture set and choose to create a new shader instance. You will now be able to choose a different shader for each texture set.