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

Dda program to plot line segments, Use DDA algorithm to get the output of y...

Use DDA algorithm to get the output of your program as shown in Figure ANs: Use DDA( ) function to plot line segments that have end points on diametrically opposite points

Tcp connection, what is the opengl code for tcp connection?

what is the opengl code for tcp connection?

Single point perspective transformation, Single Point Perspective Transform...

Single Point Perspective Transformation - Viewing Transformations In order to derive the particular point perspective transformations beside the x and y-axes, we construct fi

Low level techniques (motion specific), Low level techniques (motion specif...

Low level techniques (motion specific) Techniques utilized to fully control the motion of any graphic object in any type of animation scene, these techniques are also considere

Homogeneous coordinates, What are the uses of homogeneous coordinates? Conv...

What are the uses of homogeneous coordinates? Convert translation rotation and scaling in homogeneous coordinates. In mathematics homogeneous coordinates introduced by August

Reflection, What is the advantages and disadvantages of reflection ?

What is the advantages and disadvantages of reflection ?

Can you give some basic features of computer graphics, Can you give some ba...

Can you give some basic features of computer graphics? The methods of computer graphics are the manipulation and creation of graphics (artificial images) by computer.

Plane equation - spatial orientation of the surface element, Plane equation...

Plane equation - spatial orientation of the Surface Element For some of Plane equation procedures, we have information regarding the spatial orientation of the individual surf

Animation, Animation, Video and Digital Movies : These are sequences of bi...

Animation, Video and Digital Movies : These are sequences of bitmapped graphic scenes or frames, quickly played back. But animations can also be made inside the authoring system t

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