exporting blender material

hello again!
If I have to export a mesh with a special material made with blender (for instance glass) should I do something strange like setting up this or that?

Blender exports it well but in pview I can’t see it…

Thanks to all!

It depends on what you mean by ‘special’ - Chicken doesn’t export anything close to everything that Blender supports. The most important thing is to realise that it can only work with textures in an image file, i.e. procedural textures do not work, and that if you want alpha you will have to provide it from an image file. (The alpha slider in the material panel is ignored.) For glass I would use a .png file with suitable colours and alpha values, and texture you geometry with that. (If colour is constant just use a 1 pixel by 1 pixel file!) Bit strange I know, but its just one of many things not supported by Chicken in a sensible way!