[comp.graphics] Displaying a rotating object: algorithmss?

planting@ai.WISC.EDU (Harry Plantinga) (02/12/88)

I'm interested in an algorithm for showing an object rotating on a
screen, or, equivalently, showing an object while the camera moves.
One obvious way of doing this is removing hidden lines and displaying
the object, changing the viewpoint a little bit, removing hidden lines
and displaying the object, and so on once for each frame.

Does anyone know of a more efficient algorithm, one perhaps that takes
advantage of the similarity from frame to frame>?

Harry Plantinga
planting@cs.wisc.edu
{allegra,ihnp4,seismo,heurikon}!speedy!planting