3. Geometric Theory

Geometric theory is used in games to model characters and environment. An initial mesh is used to give a basic shape to an object that is later built upon with textures. the mesh consists of various 2D polygonal shapes, each polygon has Verticies, Edges and a face. In the creation of a polygon 2 verticies are connected together by a line creating the first edge. When another vertice is added a face is formed. This is a triangle but another vertice could be added to turn it into a quad. When creating character meshes tri's are used to create free flowing movement that looks smooth. Also when creating a mesh for a character all of the edges have to be connected do that the model can be composed entirely of 2D polygons.