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

Sound editing programs, Sound Editing Programs; Sound editing tools for bo...

Sound Editing Programs; Sound editing tools for both digitized and MIDI sound; by that you see music and also hear it. Through drawing a representation of a sound in fine growths,

Acquire a transformation matrix for perspective projection, Acquire a trans...

Acquire a transformation matrix for perspective projection for a specified object projected onto x=3 plane as viewed by (5,0,0). Solution: Plane of projection: x = 3 as given.

Define the meaning of abbreviations of cmyk and rgb, QUESTION You are e...

QUESTION You are employed as a graphics designer in an advertising agency and recently completed a brochure artwork for a client. You need to send the file for printing before

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

what is the opengl code for tcp connection?

Other video file formats, Other Video File Formats: There are several the ...

Other Video File Formats: There are several the other formats for storing video in the digital formats. Such formats are usually used for the storage and viewing of video through

Images - systems research group, The image you have been given for contour ...

The image you have been given for contour extraction is shown in Figure 1. The method for constructing the search space is shown in Figure 2. It is generated from two initial discr

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

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