Attached Link: http://sittingblue.50megs.com/tutorials/terrainmap/index.htm

I have a couple of suggestions:

Change your distribution function to a 50% step filter.

In your photo-editor, save your picture as 2-bit color (black and white).

In the function editor, set the mapping to flat (vertical).

In the material editor, set the mapping mode to object-oriented.

The correct mapped picture function scale for a '256 x 256' terrain is 5.689.

You may want to read my tutorial on terrain mapping (which was inspired by Kutter's tutorial).

Charles

Charles