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Throughout Direct3D, vertices describe position and orientation. Each vertex in a primitive is described by a vector that gives its position, color, texture coordinates, and a normal vector that gives its orientation. Quaternions add a fourth element to the [x, y, z] values that define a three-component-vector.
vertex - a single point defined in space. In a 3D model, each vertex has a three dimensional position, and is connected to other vertices by edges, curves, surfaces, or polygons. vertices - the plural of vertex. Note: 1 point is a vertex, 2 or more points are vertices.
The difference between points and vertices is that a point can be shared between primitives while vertices are unique. A point is simply "a place in space" as defined by four numbers (X, Y, Z, W). A vertex on the other hand is a reference to a point.
A vertex (plural vertices) in computer graphics is a data structure that describes certain attributes, like the position of a point in 2D or 3D space, or multiple points on a surface.
I often see the words 'vector' and 'vertex' (plural 'vertices') being used in 3D programming contexts.
From what I can tell, they both describe a point in n-dimensional space. The XNA framework for example has Vector2, Vector3 and Vector4 classes, but there doesn't seem to be a Vertex class.
What is the exact difference between a vector and a vertex?
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