From the course: 3ds Max 2018: Mastering UVW Mapping

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Understanding the UV space

Understanding the UV space

- [Narrator] With a basic understanding in hand of why we need UVW mapping in our 3D applications, let's try and lock down another basic and extremely important concept, which is how UVW space relates to scale. Well, a good place to start is with the understanding that UVW coordinates neither deal with nor report distances or scale in the same manner as the Cartesian or xyZET system. There, distances can be measured in 3D space using specific real world unit types and intervals, such as feet and inches, meters and centimeters, and so on. UVW coordinates, however are measured and reported as a width and height percentage of the surface to which they are applied. This is because UVW maps make use of a 0-1 value range, with any value reported representing a percentage of the overall size or distance of the map's surface. So, for example, we could apply a brick map that is 10 bricks high to a datum wall or to a skyscraper. The information contained within the 0-1 space will merely be used…

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