Viewing Reference Coordinates (VRC)--2
Viewing reference coordinates (VRC) in summary:
- an origin at the VRP
- an n-axis along the VPN
- a v-axis along the projection of the VUP onto the view plane
- a u-axis, determined by "right hand rule": u x v = n
View volume intersects the view plane in a view window.
View window is described by maximum and minimum values of u and v.
Viewing History - 10 MAY 95
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