I am taking the online UDK course and I am at the "Basic Materials" part in the below link..
In the beginning, both his regular texture and his normal map have this "Alpha Channel". Later in the video he utilized this channel. Now here is the thing, my texture doesn't have this channel, so my results in the end are quite different. I am also a huge failure at Photoshop . How do I create a Alpha channel in Photoshop that is in fact similar to his. Thank you guys!