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Grome Terrain Modeling with Ogre3D, UDK, and Unity3D by Richard A. Hawley

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Chapter 1. Creating Virtual Landscapes

Tools are everything in game development today. Let me quickly tell you a story. Back in 1983 home computers were simple enough that you could create a virtual city (made of blocks) using nothing much more than pen and paper to scratch out lines of hexadecimal code. The code would then be entered (by hand) over several coffee fuelled evenings and assuming you got every number correct and didn't suffer a tape loading error you could make amazing new worlds. If this sounds primitive and a lot of hard work, well it was. The technological equivalent of scratching out lines of dirt with a plough. Pioneering stuff.

Modern three-dimensional games are several orders of magnitude more complex than Sandy White's 1983 ...

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