Large Terrain maps?

TheMightyDude · 2005-06-08T03:16:10

Hello All I have played about with OpenGL for a little while now, and I was thinking of getting into terrain maps. I have brought a couple of Terrain programming books, but they seem to only show you how to do small maps like 1024 x 1024 using height maps. I have tried to use larger height map files but that just seems to hammer me machine. I have noticed that games like Starwars Galaxys and World of Warcraft etc use massive terrain maps. Are they using a single massive map or are they using multipul of maps overlaid next to each other to look like its a massive map? I would be gratefull for any help. Thanks in advance Paul