3D is the creation, management and storage of geometric objects to represent objects that are around us, or virtual objects. The 3D modeling process starts with the use of specialized software and 3D modeling. 3D artist develops a mathematical model to represent the wireframe using specialized software. The final product is called a 3D model. The 3D modeling process of 3D graphics to sculpture. During this process, the manipulation of geometric data and prepared manually or automatically. There are three methods to create and display a 3D model. They are 3D polygonal modeling, NURBS modeling in 3D, and 3D modeling splines and patched. Polygonal 3D modeling using the corner that is connected to a polygonal mesh. Since they are polygonal, curved surfaces approximated by many small flat surfaces. The vast majority of today's 3D models are built as textured polygonal models, because they are more flexible and faster to manage the team. 3D polygonal models can be classified as high-polygon and low polygon models depending on the density of the polygon mesh. Low poly 3D models are preferable for 3D games and simulations, as they tend to require less computing power. NURBS 3D modeling using NURBS surfaces. NURBS are truly smooth surfaces, not approximations using small flat surfaces, such as 3D polygonal modeling. They are best suited for complex shapes and ecological models. NURBS surfaces geometrically defined by spline curves, which in turn is influenced by weight control points. The curve follows the points of weight control, so does the importance of a point will pull the curve near that point, and vice versa. Splines and patches depends 3D modeling curved lines that define the visible surface. When using this method for 3D modeling stage consists of shaping individual objects that are then used in the scene. There are a number of techniques such as constructive solid geometry, implicit surfaces, subdivision surfaces. Models can be performed using a 3D modeling software or an application component or some scene description language. In some cases there is no strict distinction between these phases and, in such cases, modeling is only part of the scene, the construction process. Complex materials are modeled with particle systems. A particle is a mass of 3D coordinates of points, polygons, symbols of the structure, or spirits from them. The materials are modeled with particle systems include smoke, blowing sand, clouds and aerosols. When you make the 3D model, the 3D artist can begin the process of rendering 3D on 2D visual representation or use the 3D model for animation. In addition, the 3D model can be used for other applications, including computer simulation of physical phenomena. 3D model can also be physically created using 3D printing through rapid prototyping techniques. When using 3D printing, 3D objects are created by the cross connect layers of materials. Picture. 1 3D model of the vehicle Lonestar International Trailer