The "world" or "geometry" or "3D" content type is not inherently
interactive. However, it is a distinguishing characteristic of the 3D
data that it may be manipulated by a viewer. This includes navigating,
spinning, scaling, etc. This is done without fetching the scene again.
The archtypical 3D content is the spinning teapot. The content itself
is not changing, but the viewer is spinning it. I see this as exactly
parallel to a text viewer scrolling through pages of text.
YON, [email protected], Jan C. Hardenbergh, Oki Advanced Products 508-460-8655
http://www.oki.com/people/jch/ =|= 100 Nickerson Rd. Marlborough, MA 01776
Imagination is more important than knowledge - Albert Einstein (1879-1955)