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Message: [QUOTE="newageretrohippie, post: 46281, member: 72847"] I guess if you want to get technical about it, a true 3D game would be one in which quaternions are integral to the gameplay. technically free movement in 3 dimensions requires 4 dimensions to fully describe. if you only use 3 dimensions to define orientation in 3 dimensional space, it is possible to become "disoriented" ("gimbal lock" is a common term for this; being "high on PCP" is another one) so to fully describe a 3 dimensional orientation, you need a 4D vector called a quaternion that is (X,Y,Z,R) where R is the rotation about the axis described by the first 3 values. an easy way to think about it is a rotisserie where you can point your pig or chicken in any direction as it turns, lol (that's how i think of it, anyway) [/QUOTE]

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