Abstract
In computer graphics, 3D modeling is the process of developing a mathematical representation of any three-dimensional surface of an object using specialized software. 3D modeling is used in various programs to represent physical objects and visualize a nonexistent object by means of computer technology. 3D modeling is a subset of computer aided design (CAD), which simplifies the process of designing and prototyping products. The ability of an automated 3D modeling system is used in various applications, mainly when it comes to the development of parts in military equipment to help in the creation of visualizations of their parts or objects. The designer uses computer models to convey dimensions, types of materials for computer numerical control (CNC) machines to manufacture parts. A modeling product is a 3D model that can be represented in the form of program code or displayed in a viewport or viewer as a two-dimensional image created by the rendering process. Rendering is the process of obtaining an image from a model using a computer program, where a model is a description of three-dimensional objects in a specific programming language and in the form of a data structure. Such a description can include geometric data, observer point position, lighting information, and a digital bitmap. 3D models can be created manually or automatically, including using a 3D scanner. A typical example of the implementation of 3D scanning was the survey of ground forces to assess the locations of soldiers in a combat vehicle and predict the position of drivers in the process of driving a vehicle. In addition, in 2016-2019. NATO Science and Technology Organization is conducting research on HFM 266 «3D scanning for clothing fit and logistics», which will form the basis for further standardization of 3D scanning of personnel for optimal clothing matching and logistics management. Keywords: 3D-modeling, section characteristics, CAD systems.
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