Preview

What is Polygonal

Good Essays
Open Document
Open Document
1829 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
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)

You May Also Find These Documents Helpful

  • Good Essays

    A CAD model can quickly display an engineer’s ideas in a realistic way. And those models can be used to generate technical drawings that can communicate the information necessary to make the idea a reality. In order to generate a 3D model, designs must start with sketches that are generated within the CAD program. These computer generated sketches will appear resemble hand drawn sketches in geometry (the combination of points, lines, and shapes), but have big advantages over hand drawn sketches. One important difference between a freehand sketch and a CAD sketch is accuracy. The lines of a CAD sketch can be drawn perfectly straight, with start and end points that occur in exact locations in space. By using numeric (dimensional) constraints a line may also be given precise length, placed a specific distance from another sketch feature, or constrained to be oriented at a specific angle from another straight line. By applying geometric constraints a line can be made perfectly horizontal or vertical. If more than one line is being sketched, they can be made perfectly parallel or perpendicular, collinear, or equal in length. Lines can be constrained to be tangent to circles or arcs, and two circles can be constrained to be concentric. In order to precisely model a part, the designer must be able to use dimensional and geometric constraints within the CAD program.…

    • 453 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Unit 8 D1 Creative Play

    • 1762 Words
    • 8 Pages

    Having the ability to model random shapes and materials into 3D objects give children a boost in their self confidence, and a sense of achievement, and they will feel proud with what they have made. The children will…

    • 1762 Words
    • 8 Pages
    Good Essays
  • Satisfactory Essays

    Cad vs Hand Drawing

    • 408 Words
    • 2 Pages

    faster and more accurate design tool than hand-drawn (manual) drafting. Computers make printing and duplicating…

    • 408 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Report comparing the limitations of different hardware and software packages used in graphics work and evaluating the impact of evolving output mediums on the design and creation of graphic images…

    • 990 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    After completion of this step the architects use the surveying drawing to develop a working drawing for the building. In these drawing you will see triangles, rectangles, squares, arches and other geometry shapes and forms to create their design. The architects through our history have used these shapes to create famous structures all over the world. If you go back to Roman historical sites you will see such examples like the great Coliseum. A great example can be seen is the famous Egyptian pyramid. Some other famous structures are the Eiffel Tower which is in Italy, and Chrysler building in New York. If you look around your neighborhood houses, you will see these shapes.…

    • 369 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Fin 11 Study Guide

    • 2154 Words
    • 9 Pages

    . Shape: Shape pertains to the use of areas in two dimensional spaces that can be defined by edges, setting one flat specific space apart from another. Shapes can be geometric (e.g.: square, circle, hexagon, etc…

    • 2154 Words
    • 9 Pages
    Better Essays
  • Good Essays

    2d Verses 3d

    • 477 Words
    • 2 Pages

    Let me give you an example. Just creating a sheet metal box in the 2D world we would draw up the parts on paper, check our fits and clearances. Everything may look good on paper but you have a thing called human error involved. We might have made a math error or just put down the wrong number on the drawing. That in itself can throw everything off. For one because the prototype shop is going to try and make the parts just the way you have them on the drawing. So if it’s wrong you get the parts back wrong. On the other hand with the help of a good 3D modeling program like Pro/Engineer we can achieve good parts quicker. Let me explain. With Pro/Engineer when you are creating a 3D model, it is created in real space so what you see on the screen is what you are going to get. If you make a change to the model the whole model and drawing changes unlike in the 2D world only the drawing changes. In the 2D world you have to make changes to every drawing. In the 3D world the models are linked to the drawings so if you make a change to the model the drawing also changes. You don’t have to touch the drawings. For…

    • 477 Words
    • 2 Pages
    Good Essays
  • Best Essays

    In accordance to Marr and Nishihara, objects ought to be presented within the reference frame implying that it should be founded on the shape it attains. In order to describe an object based on its shape, canonical coordinate frames need to be established prior to the establishment of the form description. The appropriate collection of expressive rudiments for describing a shape is reliant on the degree of features that the shape description encapsulates. Marr and Nishihara proposed that a modular orderliness of shapes with dissimilar sizes be utilized in different degrees. This enables a portrayal at an elevated level to be stable over modifications in well detailed although…

    • 2043 Words
    • 9 Pages
    Best Essays
  • Better Essays

    3d Printing

    • 1261 Words
    • 6 Pages

    References: 7. ^ Séquin, C. H. 2005. Rapid prototyping: a 3d visualization tool takes on sculpture and mathematical forms. Commun. ACM 48, 6 (Jun. 2005), 66-73. [1]…

    • 1261 Words
    • 6 Pages
    Better Essays
  • Satisfactory Essays

    From the Roman arches to the triangular Great pyramids to religious domes and the variety of quadrilaterals found on steel-frame buildings of the 20th century, architecture is largely predicated on shapes. The mathematical attributes of shapes are necessary to the design of any standing structure.…

    • 330 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    3D modeling is a powerful tool for engineers. It allows an idea to be translated into a model that can communicate the concept, adapt to changes, and even create a physical model with devices such as a prototype or a mill.…

    • 209 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    "Graphic Design: The New Basics." Graphic Design: The New Basics. N.p., n.d. Web. 29 Apr. 2012. <http://gdbasics.com/index.php?s=texture>.…

    • 736 Words
    • 3 Pages
    Good Essays
  • Good Essays

    1426106949 738 TermPaper

    • 635 Words
    • 3 Pages

    2. shows how it is exemplified by a particular game and its design qualities; and…

    • 635 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Computer graphics applications often use textures to decorate virtual objects to increase realism without modifying geometric details. In recent years, texture synthesis has been a…

    • 4064 Words
    • 17 Pages
    Powerful Essays
  • Powerful Essays

    Cad/Cam/Cae

    • 2091 Words
    • 9 Pages

    The transitions from CAD to CAM and numerical simulation require substantial effort, and errors are inevitably .introduced. In this paper, a novel framework of realizing the subdivision-based seamless integration of CAD/CAM and numerical simulation was first presented. A unified representation was created with the subdivision method.…

    • 2091 Words
    • 9 Pages
    Powerful Essays