Task 3 geometry
- 1. 3D Geometry Geometry 3D computer graphics employ the same principles found in 2D vector artwork but use a further axis. 2D vector artwork are created when the computer draws the image by plotting points on X and Y axes and joining these points with paths. The subsequent shapes can be filled with colour and the lines stroked with colour and thickness if required. Cartesian coordinate system is the coordinating system that specifies each point by a pair numerical coordinates. Geometry is a branch of mathematics with questions of shape, size, relative position of figures, and the properties of space. A group of polygons which are connected by shared vertices is referred to as a mesh, often known as a wireframe model.
- 2. In 3D applications pre-made objects can be used to make models out of various shapes. The most basic of these shapes are the most common varying from the basic cube or box to spheres, cylinders, pyramids and cones. They are used as the starting point for modelling. They can be edited once created. Surfaces Polygons can be defined as specific surfaces and then have colour or texture added to them to create the person perfect look. Surface is a two-dimensional manifold. The most familiar examples are the boundaries of solid objects in ordinary three-dimensional.