Three-dimensional viewing, Computer Graphics

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.

Posted Date: 4/26/2013 3:53:32 AM | Location : United States

Related Discussions:- Three-dimensional viewing, Assignment Help, Ask Question on Three-dimensional viewing, Get Answer, Expert's Help, Three-dimensional viewing Discussions

Write discussion on Three-dimensional viewing
Your posts are moderated
Related Questions
Write a code to generate a composite matrix for general 3D rotation matrix.  Test your code and rotate continuously a cube about an axis.

Types of Bitmap Images Bitmap images can include any number of colours but we distinguish among four main categories as: 1)      Line-art: These are images that include

Basics of Animation - Computer animation Historical and traditional methods for production of animation: As we have studied the transformations linked in computer graphics

Question: (a) Using suitable examples, explain the following basic principles of design: (i) Proximity (ii) Repetition (iii) Contrast (iv) Alignment. (b) Color h

Numerically-Controlled Machines: Prior to the development of Computer-aided design, the manufacturing world adopted elements controlled through numbers and letters to fi

Problem with Interpolated Shading There are several more shading models that intermediate in complication among Gouraud and Phong shading, linking the liner interpolation of t

Consider the line segment AB in 3-Dimentional parallel to the z-axis along with end points A (- 5,4,2) and also B (5,-6,18). Carry out a perspective projection upon the X=0 plane;

Applications For Computer Animation These days, animation influences approximately every aspect of life right from entertainment to education and to security and lots of more a

Two Modes of Operation of Tablets Tablets typically sustain two modes of operation as: 1)  Digitizer Mode: creates a one-for-one connection between screen and tablet.

What do you mean by Perspective projection?  Perspective projection is one in which the lines of projection are not parallel. Instead, they all converge at a single point known