UVW Range
Defines a range of coordinates in local 3D space. This is typically associated with the face of a bounding box.
U (min/max): Position along the horizontal (U) axis.
V (min/max): Position along the vertical (V) axis.
W (min/max): Position along the normal (W) axis. Unlike the U and V components, the W component is expressed in meters. For example, the point (0.5, 0.5, 1) in UVW space as implemented in this system corresponds to a point aligned to the center of a bounding box face (0.5, 0.5), offset by 1 meter along the face's normal (away from the face).
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