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

Reflection, Determine the transformation matrix for the reflection, Compute...

Determine the transformation matrix for the reflection, Computer Graphics

Explain about the computer based training, Explain about the Computer Based...

Explain about the Computer Based Training CBT makes use of a computer system to train people in numerous applications. It makes use of self-assessment and multimedia with minim

Homogeneous coordinate systems - 2-d and 3-d transformations, Homogeneous C...

Homogeneous Coordinate Systems - 2-d and 3-d transformations Suppose P(x,y) be any point in 2-D Euclidean (Cartesian) system. In HC System, we add a third coordinate to a poin

Img- mac-msp file formats, IMG/MAC/MSP File Formats IMG files were orig...

IMG/MAC/MSP File Formats IMG files were originally implemented to work along with GEM paint program and can handle monochrome and grey level pictures only. MAC files are uti

Basic transformations - 2-d and 3-d transformations, Basic Transformations ...

Basic Transformations - 2-d and 3-d Transformations Consider the xy-coordinate system upon a plane. An object or Obj in a plane can be identified as a set of points. All objec

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

Distinguish between uniform scaling and differential scaling, Distinguish b...

Distinguish between uniform scaling and differential scaling?  When the scaling factors sx and sy are assigned to the similar value, a uniform scaling is produced that maintain

Parallel source and distributed light source, Parallel source and Distribut...

Parallel source and Distributed light source a) Parallel source: this is to be noted that while point source is at an infinite distance then light rays are parallel and func

Programming, i want to learn how to programme

i want to learn how to programme

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