>>I need to know not only the distance but also how wide
a thing is, and if there is a step going down or up....
my point is you still don't need to render something in 3d...the computer can't use it that way, you dont need to render any of the data into images.
Sayeh hit it on the head, you don't render something in 3d to get the data, you receive the data from multiple locales in the first place.
