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

What do you understand by the term image compositing, Question 1: (a) E...

Question 1: (a) Explain in detail what you understand by the term image compositing and where it is more often used? (b) You are given 3-5 images to make a photo montage/ima

Cohen sutherland, explain cohen sutherland line clipping algorithm

explain cohen sutherland line clipping algorithm

Scaling, Scaling, shear, reflection and Viewing coordinates 1) Scaling,...

Scaling, shear, reflection and Viewing coordinates 1) Scaling, shear and reflection operations have natural extensions to 3D.    2)  Viewing coordinates are the coordinates

Random scan display device - types of refresh monitors, Random Scan Display...

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

Briefly explain how you could create the gun barrel effect, Question 1: ...

Question 1: (a) Describe what you understand by Rotoscoping in Graphic effects. Give details how Rotoscoping could be achieved in After Effects CS3. (b) Using one algorithm

Methods of animation - computer animation, Methods of Animation - Computer ...

Methods of Animation - Computer Animation First method: in this, artist makes a succession of cartoon frames that are then combined in a film. Second method: in this,

3dstudio - softwares for computer animation, 3Dstudio - Softwares for compu...

3Dstudio - Softwares for computer animation 3DStudio is a 3-D computer graphics programmed. 3DStudio runs on personal computers. This is relatively simple to use. Several schoo

Example of bezier curves - modeling and rendering, To prove: P (u = 0) = p0...

To prove: P (u = 0) = p0 Solution : = p 0 B n,0 (u) + p 1 B n, 1 (u) +...... + p n B n, n (u)...............(1)  B n,i (u) = n c i u i (1 - u) n-i B n,0

Character generation - output primitives, Character Generation You know...

Character Generation You know that graphics displays often contain components which are text based.  For example graph labels, annotations, descriptions on data flow diagrams,

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