Graphics Reference
In-Depth Information
The effect of these equations is shown in Fig. 9.7, where a cube is viewed through a projection
screen with a radius of curvature of 10. Care must be taken when using this projection because
if only the end points of each edge are processed, then straight edges transform into straight
edges. However, in Fig. 9.7 many points are taken from each edge to create the curved lines.
3
2
1
-3
-2
-1
1
2
3
-1
-2
-3
Figure 9.7.
