Well, it''s a bit weird that I need to do all that - many games uses 256x256 heightmaps without a problem, and many of them uses the same algorithm as NeHe uses in his tutorial.
There is no other way to fix this problem?

- Yuval

Do you have to use that particular height map? I''m no expert, but what I found when playing with height maps is that the spray gun is not so great because you will get black pixels immediately beside white pixels- althought it looks like a gradual grey transition, its not. If you want some control over where your mountians go etc, I would suggest a more exact drawing technique where you can apply a gradient. Otherwise, render clouds.

i too would recommend changing the drawing style of the heightmap.

IT Administrator / Software Engineere
http://drdsoftware.cjb.net

What''s the drawing style you recommend?

- Yuval

Well, I''m happy to announce that I fixed the problem. I simply switched to a 1024x1024 height map. Everything is working great now.

Thanks for your help and replys!