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

Crt, crt is an analog or digital device

crt is an analog or digital device

2d clipping, What is 2d clipping in computer graphics

What is 2d clipping in computer graphics

Historical method – oral tradition, Historical method - Oral tradition: ...

Historical method - Oral tradition: Only the teacher was the source of information The teacher treated as a role model. The teacher was the main resource to meet indiv

Film - applications for computer animation, Film - Applications for Compute...

Film - Applications for Computer Animation Computer animation has turn into regular and accepted in particular effects. Movies as "Jurassic Park", "Terminator 2: Judgment Day"

Transformation, determine the form of the transformation matrix for a refle...

determine the form of the transformation matrix for a reflection about an arbitrary line with equation y=mx+b.

Different advertising hooks, Question: (a) Name two visual effects you...

Question: (a) Name two visual effects you would use to communicate: i. Good old days ii. Rebellion iii. Fear (b) Explain each of your answers given in section (a).

Proof of subsequent properties of bezier curves, Proof of subsequent proper...

Proof of subsequent properties of Bezier curves Note: Proof of subsequent properties of Bezier curves is left as a work out for the students P' (0) = n (p 1 - p 0 ) P

What are spot colours, Question 1: Name at least four file formats an...

Question 1: Name at least four file formats and explain in detail what they mean and how they are use? Question 2: What are "Process Colours"? Answer in a single para

Vecgen algorithm and bresenham line, what is vecgen algorithm and bresenha...

what is vecgen algorithm and bresenham linequestion..

Animation, name some of the standard motion in key frames

name some of the standard motion in key frames

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