CSCI 480/580 Lecture 3 - In-Class Problems

Consider the following 3D surface, which happens to lie in the \(z=0\) plane. The front of the surface points towards you as you view of the object (i.e., towards the \(+z\) axis).

  1. Represent the surface as a set of separate triangles.
  2. Represent the surface as an indexed triangle set.
  3. Represent the surface as a triangle fan.
  4. Represent the surface as a triangle strip.
  5. Write the indices for a triangle strip representing a tetrahedron with vertices a, b, c, d like the one given in the lecture slides:

From the viewer’s perspective, vertex c is behind the face formed by vertices abd.