Alpha 0 gives relfection... Help!

Hello!

I’m studying textures and found a problem when using a gateway texture. It’s a plane with 3 textures (diffuse, normal and alpha).

I read this thread (http://blenderartists.org/forum/showthread.php?t=130227&highlight=alpha+map) that helped me but the transparent parts still reflect light (shown at the top right of the PreviewRender). Is it a problem with the normal map or the alpha? How can the “squares” be perfectly transparent?

In attachment, you’ll find a screenshot of a PreviewRender, the TextureButtons, MaterialButton and the blend file I use. Thank you for any help!

Attachments




AlphaTrouble.blend (164 KB)