Three-dimensional viewing, Computer Graphics

Assignment Help:

Three-Dimensional Viewing

Three dimensional objects are created using modelling coordinate system. The modelled objects are then placed in locations specified in the scene with respect to the world coordinate system. You can view the scene from any orientation and this is what you call as the view of the scene. Viewing coordinates are the coordinates generated with respect to the frame of reference of the viewer, or you may call it the frame of reference created by the position of camera. Viewing transformation is a composite transformation, which transforms the scene from world coordinate system to viewing coordinate system. To understand what viewing coordinate system and the viewing transformation are, let us consider a simple example. Suppose you have a vacant room and you want to organize its interior to make it an office. Chairs, tables, shelves, etc. are created somewhere else (in some factory) using some coordinate system. Let that be treated as a modelling coordinate system. Then these items will be brought in the room (Transform to locations in the room). Finally every object will be placed in appropriate position. This means the modelled objects are now placed in the world coordinate system. Now you view it from various angles and then become satisfied with the arrangements. When you are watching it from various angles, each time you change your position, the relative positions of the objects in the room also change. Objects closer to you become farther when you go on the other side of the room. This is viewing coordinate system and your eyes make an automatic transformation of objects from world coordinate system to viewing coordinate system.


Related Discussions:- Three-dimensional viewing

Boundary fill algorithm - output primitives, Boundary Fill Algorithm Bo...

Boundary Fill Algorithm Boundary fill algorithm is suitable when the boundary has single color while flood fill algorithm is more suitable for filling regions which are defined

What is a color management system, QUESTION a) What is a color manageme...

QUESTION a) What is a color management system? Briefly explain how it works. b) What are the three major factors affecting print permanence? c) Briefly explain three ways

Perspective projection, Perspective Projection 1. Perspective projectio...

Perspective Projection 1. Perspective projection gives more realistic appearance and uses the same principle as used in camera. 2. Perspective projection is not an affine tr

Define clipping, Define clipping and covering (exterior clipping)? Clip...

Define clipping and covering (exterior clipping)? Clipping is the process of cutting a graphics display to neatly fit a predefined graphics region or the view port.  This is

Derive the single combined transformation matrix, A 2D geometric shape is r...

A 2D geometric shape is rotated about a point with coordinates (1,2)  by 90°  in a clockwise direction.  Then, the shape is scaled about the same point in the x-coordinate by 2 tim

Space exploration-applications for computer animation, Space Exploration: ...

Space Exploration: now, the farthest point far away from earth which the human was on the moon, although we continually want to learn more. A trip by a human to the other planet w

Functioning of input devices - 2d shape primitives, Functioning of Input De...

Functioning of Input Devices Functioning of input devices-Keyboard, mouse, trackball and space ball, Joystick, data glove, digitizer, scanner, touch panel, light pen, voice sys

Computer simulation - computer aided design, Computer simulation - Computer...

Computer simulation - Computer Aided Design Computer simulation is the manner of designing a model of a real or theoretical physical system, not including the model on a digit

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

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