Dual Triangle Patch Applet
DIRECTIONS: In this applet, you are given a composite Bezier patch
consisting of two triangular Bezier patches joined along one edge. You can manipulate
the surface by by dragging the control points control points to
an appropriate location. You drag the point in perspective view
on the image plane and move the point in and out of the image
plane by using the A and Z buttons where A moves point directly
on a line towards your eye so the point will not move apparently
on the image screen and Z moves the point directly on a line away
from your eye. Alternatively, you can move the point using the
C and D buttons perpendicularly to the image plane, C moves away
from you and D moves the point toward you. The patch can be rotated
using the arrow keys, and you can zoom out and zoom in using the
page up and page down keys.
The purpose of this applet is to investigate how to join two triangular
patches in a smooth manner.