HA7 Task 3 - Geometric Theory

Task 3 - Geometric Theory

What are the fundamental principles behind the creation of virtual 3D space? Describe and explain 3D geometry.

Remember that you are trying to comprehensively explain the theory and applications of 3D with elucidated examples and consistently using subject terminology correctly.

What is 3D?

3D is a three parameter model made up of Length; Width and Height. A common use of 3D is analytic geometry. This is commonly known as the Cartesian System. It describes any point is three dimensional space using three coordinates. Each of the three coordinates is for a single axes. 

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Within games development the process of geometric theory is a way to model objects or characters within a game. The way this is performed is through a design process using an initial mesh which gives the basic shape of an object to later be built upon with different textures. The way in which a mesh is created is through the process of combined polygons. Polygons are two dimensional shapes that all have three key components, these are a vertice, an edge and a face. In the creation of a polygon two vertices are connected together by a line creating a first edge. When another vetice is added and two more line edges are connected it, this creates a basic triangle polygon with a face; which is the simplest version of a polygon that can be made. Before this basic shape is created, extra vertices can be added after a third to create a shape called a quad which is composed of four edges. This can be carried on with more vertices to create more complex shapes such as hexagons and decagons. An example of a three vertice triangle polygon with a pin point to each feature is displayed below.

https://jcallisterdesign.wordpress.com/year-1/unit-66-3d-modelling/assignment-one/task-one/introduction-to-3d-modelling/explaining-geometric-theory/