Three dimensional concepts and display methods, Computer Graphics

Assignment Help:

Three Dimensional Concepts and Display Methods 

 Imagine yourself taking a picture by a camera.  What do you normally do?  You specify a viewpoint and view direction and then set up a view window.  Once that is done you take a snap and the image of 3D scene/object is captured in a 2D film.  Basic idea behind this is projection from 3D to 2D.  Projections are broadly classified under two names (i) Parallel (ii) Perspective.  When objects are projected onto the display plane along parallel lines, we call it parallel projection.  In this case a view direction is specified and image of points on the object are obtained by taking lines parallel to the view direction and finding their intersection with the display plane.  If you have seen an architectural drawing of a building plan, you would have noticed that they show three different plots, top view, front view and side view normally.  This actually is an example of a parallel projection of the building to be constructed.  On the other hand, perspective projection corresponds more closely to the way a human eye perceives a 3D scene.  A viewpoint is specified and points from the object are projected to the view plane by considering lines emanating from the points on the object and converging to the viewpoint.  Intersections of these converging lines with the display plane make the image of the object under perspective projection.


Related Discussions:- Three dimensional concepts and display methods

Quicktime and real video, Quicktime Quicktime is the video format devis...

Quicktime Quicktime is the video format devised through and used through Apple and can be utilized at varying quality and file sizes. This is quite broadly used and has affecte

What is the advantages of electrostatic plotters, What is the advantages of...

What is the advantages of electrostatic plotters? Advantages of electrostatic plotters: They have very high quality printers and faster than pen plotters. Recent electros

Rotation about z-axis - transformation for 3-d rotation, Rotation about z-a...

Rotation about z-axis - Transformation for 3-d rotation Rotation about z-axis is explained by the xy-plane. Suppose a 3-D point P(x,y,z) be rotated to P'(x',y',z') along with

Procedural animation - computer animation, Procedural Animation - Computer ...

Procedural Animation - Computer Animation This category of animation is utilized to produce real time animation that permits a more diverse series of actions to occur. These a

Hypertext/media and human memory, Hypertext/media and Human Memory Huma...

Hypertext/media and Human Memory Humans associate pieces of information along with other information and make complicated knowledge structures. Thus, this is also said as the h

Polygon or area clipping algorithm, Polygon or Area Clipping Algorithm - Su...

Polygon or Area Clipping Algorithm - Sutherland-Hodgman Algorithm There are different algorithms as Liang-Barsky, Line clipping, Weiler-Atherton Polygon Clipping,

Multimedia entertainment, Multimedia Entertainment: The field of ente...

Multimedia Entertainment: The field of entertainment uses multimedia extensively. One of the earliest and the most popular applications of multimedia are for games. Multimedi

Determine about the liquid crystal display, Determine about the Liquid Crys...

Determine about the Liquid Crystal Display LCDs are organic molecules, naturally in crystalline state, and they get liquified when excited by heat or E field. Crystalline state

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