Recall that a “point” has a location but no real size or thickness. In this chapter, we have learned how a “vector” has magnitude and direction, but no position. So “points” and “vectors” have different purposes, conceptually: a “point” specifies a position, and a “vector” specifies a displacement.
- Chapter 2 Vectors
- from 3D Math Primer for Graphics and Game Development, 2nd Edition, 2nd Edition
- Publisher: A K Peters/CRC Press
- Released: November 2011
“vector” specifies a displacement...
This finally makes sense to me! A vector can displace an object by the value of the vector and move it to a point with a position.
Share this highlighthttp://www.safaribooksonline.com/a/3d-math-primer/10414869/