In my opinion, I believe nudity is NOT evil. I also believe people need to GROW UP and be more mature about it. It's not that hard to resist lust in a situation like drawing a nude or looking at nude art, or seeing a naked person in reality. Lust is a result of isolating the genitalia and other sexual areas from the rest of the body. Keep your eyes where they belong and be respectful. Why was nudity so accepted in earlier cultures, but now is a crime and something condemned by confused religious, legalistic people. Yeah, those were the goold ol' days.
Ever watch something like National Geographic? Ever see those tribal people who wear less clothing than we are used to, and have certain parts exposed as part of their normal mode of dress? Do they look ashamed? No, they don't. It's all about the mindset of the people. Stop being so legalistic, and GROW UP.
It's not nudity that causes problems, oh no. It's society. We live in a society so ridden with filth: inappropriate contentography, prostitution, promiscuity, etc. It's all about the mindset. God does not condemn nudity. When the Bible talks about shame, it talks about the shame that comes from sin. And clothing is a way to cover up your sin, or in this case, your SHAME.
Let's look at a couple examples of godly men who displayed nudity in the Bible, shall we? One person who comes to mind is Ezekiel, who was commanded to go naked by God Himself. And Peter, who was fishing, and came out of the water naked. And Jesus, who I am sure, was naked at some point during the Passion, and was definately naked after the Ressurection.
Nakedness in the context of the Old Testament times meant poverty in most cases. So of course it would be a shame to be naked, because the last material thing you are usually left with is the clothing on your back.