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What is Polygonal

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What is Polygonal
QUESTION 1

Why polygonal models favored (over NURBS for instance) as assets in computer games? Explain in two or more paragraphs. Include references. (301 words)

Polygon Modeling method is the most common method of modeling used at present times in Films, Television and especially for Computer/Video games. This is because its convenient, efficient and easy to work with.There are points in 3D space, called vertices, are connected by line segments to form a 'polygonal mesh'. 3D Models in present moment are constructed as textured polygonal models, because they are flexible and therefore computers can render them quickly and efficiently. It has many efficient tools. Polygons are easy for a game engine to understand better comparing it with most models or geometry types because such engines merely require the x,y and z coordination of each vertex per triangle. It gives a helping hand for beginners and also for many experienced Animators as for their goal is to model quickly and efficiently with a clean, error free final result. Polygon Modeling has also proven that a modern graphics card can show a highly detailed scene at a frame rate of 60 frames per second (Real Time Rendering) or even higher. Ray tracers, method of generating realistic images by computer in which the path of individual rays of lights are followed from the viewer are incapable of achieving an interactive frame rate NURBS ( Non-Uniform Rational B-Spline) Modeling, are also very useful in terms of generating or representing curves and surfaces. NURBS Modeling are commonly used in Computer Aid Design (CAD), Manufacturing (CAM) and Engineering (CAE). It is also part of numerous industry wide standards, such as STEP/ISO 10303, ACIS, IGES (Initial Graphics Exchange Specification), PHIGS (Programmer's Hierarchical Interactive Graphics System). In contrast with polygonal geometry, a NURBS mesh has no faces,edges or vertices. Therefore conclude my statement by saying that NURBS models are



References: KatBitsTM http://www.katsbits.com/tutorials/textures/make-better-textures-correct-size-and-power-of-two.php (Accessed on 12.8.2013)

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