Computer Science 598d
We have studied several different 3D object representations over the course
of this semester, including scene graphs, polygonal meshes, curved surfaces,
constructive solid geometry, BSP trees, voxels, and image-based reps.
Of course, no one of these representations is best for describing every
type of object, for every operation, in every application. For each
of the following situations, please describe which object representation(s)
you think is best for the object written in capital letters, and give a
one or two sentence explanation why.
Thought Exercise #4
Due: April 9, 1998
Please email me your answers at least one hour before class on Thursday,
Rendering images of a CLOUD.
Rendering photorealistic images of a FOREST with thousands of trees and
millions of leaves from arbitrary viewpoints inside the forest.
Interactive visualization of a SOFA with soft cushions.
Interactive visualization of a TEDDY BEAR with long fur.
Interactive visualization of the TAJ MAHAL for educating school children.
Interactive visualization of the interior of a proposed (not yet constructed)
Finding interferences (intersecting parts) in a proposed AIRPLANE engine
(e.g., finds pipes passing through one another).
Checking for accessibility to different parts in a proposed AIRPLANE engine
(e.g., whether or not a repair person can reach a part with his/her hand)
Determining the differences between two 3D models of a DESK.
Avoiding collisions between the surfaces of a large CITY and the path of
a viewer moving through it.