@tinhnguyen20 said: What is a normal and can somebody give me an example? The vector perpendicular to and pointing away from the front of the object's plane. See Wikipedia: Surface Normal from which comes this image: [image: 222px-Surface_normal_illustration.png]

A second view point? I only have pictures from the birds eye view. There are different pictures with different lightings.

Any other ways you guys can think of?