terrain with Countour lines made with MiniTerrainDecorator.
TerrainDecoration is Opensource Rule-based terrain texturing tool for Unity3D.
download link:
https://github.com/emrecancubukcu/Terrain-Decorator

I am publishing it as it is because I believe that I can no longer find time and correct my mistakes due to a difficult work schedule worried It would be nice if someone could fix it. It contains filters such as slope, height, noise, image mask and blend modes that can be used in combination. It consists of 2 scripts. You can put the "MiniTerrainDecorator" script on the terrain and start entering the rules.
demo video:
https://youtu.be/UUpmUqy_JeY (I could not share this assets in this project, instead, my friend Nur Şenavcı made awesome low poly assets models)
tutorial video:
https://youtu.be/veQOj4AJxZI
I made all terrains in my "Fire and Steel" game:
https://youtu.be/obfxe4Kg22M
https://youtu.be/_PvDZa5GkBM