Hello Everybody!
I found this Polygon Map Generator and I really like it. If you use the Elevation view and modify the result (for example with Gimp) you get a great island hightmap for your game.
Here is a example Island with a heigthmap:
https://www.dropbox.com/s/l0vhq7g9n9rtckx/HeightmapExample.jpg
If you use gimp here is a little tutorial:
1. Create a map and load it in gimp
2. Go to Colours -> Desaturate check lightness and click ok
3. Use the Colour picker tool to get the darkest gray and use the Paintbrush tool to remove the island border
4. If the island has lines (looks like rivers) use the Healing tool to remove this.
5. If you think the result is ok go to File -> Export as.. and go to “Select File Type (By Extension)”
and use “raw image data” and click on Export
6. In the next window click on Planar(RRR, GGG, BBB) and R, G, B(normal)
Unity:
7. Open Unity and go to GameObject -> Create Other -> Terrain
8. Select your terrain and go to Terrain Settings
9. Go to Heightmaps and click on Import raw..
10. By File Types select All Typs(*.*) and your heightmap
11. In the Import Heightmap window use these settings:
Depth: 8Bit
Widht: 2048
Height: 2048
Byte Order: Windows
The size of your terrain
12. Smooth the height of your terrain
Now you have great island. 🙂
I hope you can use this for your games. 🙂
