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

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

Explain about the computer-aided design, Explain about the Computer-Aided D...

Explain about the Computer-Aided Design CAD is used in the design and development of new products in a several of applications both at home and on a commercial/industrial basis

Mplab ide software, MPLAB C18 TOOL (MC18) The MPLAB C18 compiler was de...

MPLAB C18 TOOL (MC18) The MPLAB C18 compiler was designed as a full featured ASNI- compliant C - complier for the PIC18 family of 8bits MCUs. MC18 compiler is integrated with c

Find out the matrix of projection, Find out the matrix of projection for ca...

Find out the matrix of projection for cavalier projection Answer: Cavalier projection corresponds to tan α = 1, leading to the following matrix.

Simulation-applications for computer animation, Simulation: There are seve...

Simulation: There are several things, places and events people cannot witness in first person. There are a lot of causes for this. Several may happen too rapidly, several may be t

Negative accelerations - computer animation, Negative Accelerations - compu...

Negative Accelerations - computer animation In order to incorporate decreasing speed in an animation the time spacing between the frames must decrease, thus there exists lesser

Different types of parallel and perspective projection, Q.   Describe diffe...

Q.   Describe different types of parallel and perspective projection used in computer graphics.

What do you understand by the term contone, Question : (a) What do you...

Question : (a) What do you understand by the term ‘contone'? (b) What are spot colours? (c) You have been asked to prepare an artwork (a magazine) to send to a printer.

Adobe flash - softwares for computer animation, Adobe flash - Softwares for...

Adobe flash - Softwares for computer animation Formerly, it was termed as Macromedia flash and prior to this, this was Futuresplash. This is in fact an IDE that refers to both

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