This page contains an ActiveX Animation that your browser was unable to view. Click here to open pres0.ppz fullscreen. Spatial Indicators Two-point perspective is employed when the artist views a leading edge instead of a flat plane. Solid objects will appear to be at an angle to the line of sight.
Geometric planes seem to diminish as they recede toward the vanishing points.
Vertical lines will stay parallel and are perpendicular to the ground plane.