Cool find Leiden.. :)
Personally I won't be downloading it though, because I'm sure when Mark releases the 3D engine, it will be 100 times better than what I can make, with of without the help of that book.. ;)
Personally I won't be downloading it though, because I'm sure when Mark releases the 3D engine, it will be 100 times better than what I can make, with of without the help of that book.. ;)