ek22 wrote:
Because bump map doesn't work on black. At all. Not even a little bit.
They will work on dark shades of gray.
This text image below was created using the "Bump Map" filter. The text started out as Black, then I added some brightness only of about +25 using "Brightness and Contrast" filter, to making it a dark shade of gray.
![Image](http://www.gimpchat.com/files/2101_Bumped%20text.png)
Then by playing with "Levels" I was able to darken it a bit more.
Here are the settings I used for the bump map filter. Notice that "Invert Bumpmap" is also checked.
![Image](http://www.gimpchat.com/files/2101_bumpmap.png)
Once the bump mapping was done, I did a slight "selective blur" and also a slight "gaussian blur" to the text.
One other thing I did was use the "Chisel" script to create somewhat of the same effect.
The "chisel" script was used on this image below. The color of the text was not changes, I left it "Black"(#000000).
![Image](http://www.gimpchat.com/files/2101_Chiseled%20text.png)