Can someone explain how the bump maps and normal maps are created from textures? I attempted to create some bump maps and normal maps using photoshop filters and nVidia plugin for photoshop to convert the bump map to the normal map. But I failed, the texture with the normal map applied doesn't look good. I tried searching for information on the internet, but didn't find any good information. What book would you recommend which would explain the bump/normal map creation? Thank you.

http://robg3d.com/tutorials_and_articles.html

The article on Shaders and Photoshop Lesson 4.

Thank you. That's a really nice tutorial you have made. It would have been nicer if the quality of the videos were higher, but it's not really a big issue.