Polygon surfaces - curves and surfaces, Computer Graphics

Polygon Surfaces - Curves and Surfaces

 

By Figure 1 and Figure 2 it is clear that it is possible to store description of objects as a set of surface polygons and similar is actually made by many graphic systems, in reality this way of object description fastens the rendering and display of object surfaces.

2217_Polygon representation methods - Boundary representations.png

The approach is helpful because each surface can now be explained with linear equations and thus polygonal explanation of the surfaces is termed as "standard graphic objects". Mostly it is the polygonal representation that is available to explain the object but there is another scheme like spline surfaces that are converted to polygonal representation for processing. 

786_Polygon representation methods - Space partitioning representations.png

 

See the figure 3 where the cylindrical surface is represented like a mesh of polygons. The representation is termed as wire frame representation that can quickly explain the surface structure. Upon the basis of the structure a realistic rendering can be performed through interpolating the shading patterns across the polygon surfaces. Hence polygon mesh representation of the curved surface is in reality dividing a curved surface in polygon facets. This enhances and simplifies the process of rendering that is transforming a 3-D scene to 2-D scene with least loss of information as height and depth. Here the objects are composed of standard graphic objects as polygon surfaces. All graphic objects need some technique for its explanation which could be a polygon equation or table and so on. So, here study the procedures to show a polygon surface.

Posted Date: 4/4/2013 3:48:38 AM | Location : United States







Related Discussions:- Polygon surfaces - curves and surfaces, Assignment Help, Ask Question on Polygon surfaces - curves and surfaces, Get Answer, Expert's Help, Polygon surfaces - curves and surfaces Discussions

Write discussion on Polygon surfaces - curves and surfaces
Your posts are moderated
Related Questions
List out the merits of Plasma panel display?  Merits  Refreshing is not needed Produce a very steady image free of Flicker Less bulky than a CRT. Demerits

why overstriking is harmful.justify

Ellipse Generation Algorithm  You know that a circle is symmetric in all the octants, while ellipse is symmetric with respect to four quadrants.  Therefore, to draw an ellipse,

Applications that can handle Bitmap Data Hundreds of applications are there in the market which can be used to modify or make bitmap data. For illustration: Adobe Photo Shop, C


How avar values generate to get realistic movement There are numerous ways of generating avar values to get realistic movement. One way is to use markers on a real person (or w

Visible-Surface Detection For the generation of realistic graphics display you know that hidden surfaces and hidden lines should be identified for removing. For this reason we

File format We want an image of a Fly. The wings are incompletely transparent and to present that in our presentation what be problematic if suitable file format is not there.

find the transformation and draw the cube for cavalier and cabinet with theta = 37 degree

Explain the term- Control Traffic lights (controlling the sequence of lights to maintain optimum traffic flow), chemical and nuclear plants (opening and closing valves, safety