A Vertex is a term of computer graphics, meaning a usually three-dimensional, but also two-dimensional point, very similar to a point an a mathematical three- or two-dimensional space. A vertex by itself is usually not visible. It may be depicted in 3D modeling tools, to make working with them easier. But normally they are only used as a means to technically describe three-dimensional objects, such as edges, faces or polyhedra (mesh).

Just like a mathematical point a vertex has no width, height or depth, in contrast to a voxel.

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