Assumptions for area subdivision method, Computer Graphics

Assignment Help:

Assumptions for Area Subdivision Method

a) ¾   Plane of projection is z=0 plane

b) ¾ Orthographic parallel projections

c) ¾   Direction of projection as d= (0,0,-1)

d) ¾   suppose here, the viewing (screen) area is a square

e) ¾   Objects are made up of polygon faces.

1817_Assumptions for area subdivision method.png

To apply the area-subdivision method, we should identify whether the area is part of a single surface or a complex surface by means of visibility tests. If the tests specify that the view is sufficiently complicated, we subdivide it. Furthermore, we apply the tests to each of the smaller regions and then subdivide additionally, whether the tests specify that, the visibility of a particular surface is still not certain. We continue this process till the subdivisions are simply analyzed as belonging to a particular surface or till they are decreased to the size of a single pixel. Beginning with the full screen as the initial area, the algorithm divides an area at all stages in four smaller area, as demonstrated in figure 8 that is similar to quad-tree approach.


Related Discussions:- Assumptions for area subdivision method

Functions of hand-held pointer and tablet, The hand-held pointer and tablet...

The hand-held pointer and tablet in the form of a stylus i.e. pen or puck can function one or more of these three functions: (i)  For choosing positions on a drawing or on a men

Implement the boundary fill and flood fill algorithm, 1. Implement the boun...

1. Implement the boundary fill algorithm and flood fill algorithm in C-language and use your code to fill two different types of closed areas such as  i)  A Circle ii)  A sel

Where the video controller is used, Where the video controller is used?  ...

Where the video controller is used?  A special purpose processor, which is used to control the operation of the display device, is called as display controller or video control

Video games, why do video game characters look better today?

why do video game characters look better today?

Languge, what languge do computers speak

what languge do computers speak

B splines, What is uniform rational splines

What is uniform rational splines

Transformation, Explain window to view port transformation

Explain window to view port transformation

#, normal vector

normal vector

Frame buffers - graphics hardware, Frame Buffers - Graphics Hardware ...

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

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd