Subdivision of polygon - visible surface detection , Computer Graphics

Subdivision of polygon

Test to find out the visibility of a single surface are made through comparing surfaces that as polygons P along regarding a specified screen area A. There are four types of possibilities as:

i. Surrounding polygon: Polygon which completely comprises the area as in the figure (a).

ii. Intersecting or overlapping polygon: Polygon which intersects the area as in the figure (b).

iii. Contained polygon: polygon which is completely comprised inside the area as in the figure(c).

iv. Disjoint polygon: Polygon which is totally outside the area as in the figure (d).

2279_Subdivision of polygon - Visible Surface Detection.png

The classification of the polygons inside a picture is the major computational expense of the algorithm and that is analogous to the clipping algorithms also. Along with the utilization of any one of the clipping algorithms there a polygon in category two as intersecting polygon that can be clipped into a comprised polygon and a disjoint polygon as in the figure 10. Thus, we could proceed as whether category 2 was removed.

2081_Subdivision of polygon - Visible Surface Detection 1.png

Posted Date: 4/5/2013 1:24:22 AM | Location : United States







Related Discussions:- Subdivision of polygon - visible surface detection , Assignment Help, Ask Question on Subdivision of polygon - visible surface detection , Get Answer, Expert's Help, Subdivision of polygon - visible surface detection Discussions

Write discussion on Subdivision of polygon - visible surface detection
Your posts are moderated
Related Questions
Problem with Interpolated Shading There are several more shading models that intermediate in complication among Gouraud and Phong shading, linking the liner interpolation of t

How many 128 x 8 RAM chips are needed to provide a memory capacity of 4096 16 bits?

Random Scan Display Device The original cathode ray tube, developed in the late fifties and early sixties, produced charts and pictures, line through line on the tube surface

Interactive Computer Animation Interactive Computer Animation that is interactively utilized by users for example: games. Sprite animation is interactive and utilized broadly

computer animation Note : This is to be noticed that computer animation can also be produced by changing camera parameters as its position, orientation and focal length, as w

Types of Authoring Tools Authoring tools are grouped depends on metaphor used for sequencing or organizing multimedia components and events as: Page or Card Based Tools

Frame Buffers - Graphics Hardware The storage region in a raster scan display system is set as a two-dimensional table. All row-column entry stores information as brightness

Consequently some methods are utilized to handle this huge information and these methods are termed as animation process that are classified as: First Method: In this method,

Basics of Animation - Computer animation Historical and traditional methods for production of animation: As we have studied the transformations linked in computer graphics

The development of CAD had little consequence on CNC initially because of the various abilities and file formats used through drawing and machining programs. Conversely, as Compute