Did you know ? .. About Bump and Normal Maps

[Pixelhate]

Both bump maps and normal maps are working with Sims 2 (both used by Eaxis)
but
some objects don't accept to be bump map enabled, while other work with bump but not with normal.
I've no clue why. :wtf:

Bump maps are grey scale textures, with one value per pixel, which determine the "highness" of the corresponding base texture pixel.
The lighter areas are rendered as raised portions of the surface and darker areas are rendered as depressions. Gradient will be rendered as a slope.
http://img26.imageshack.us/img26/3876/sprebumpsoft.png (http://img26.imageshack.us/my.php?image=sprebumpsoft.png)

Normal maps are colour textures, with three values per pixel, wich determine the "direction" of the corresponding base texture pixel.
R,G,B = X,Y,Z.

http://img25.imageshack.us/img25/5040/sprenorm7tut.png (http://img25.imageshack.us/my.php?image=sprenorm7tut.png)

An article is in preparation about differences and similarities between both maps and how to bump enable an object.

http://img299.imageshack.us/img299/362/screenshot018copy2.jpg (http://img299.imageshack.us/my.php?image=screenshot018copy2.jpg)


Related Thread : http://www.modthesims2.com/showthread.php?t=318639

Pixelhate.

[bluetexasbonnie]

I would really like to understand how to manage these, so I'm very anxious for your write up.