For orthographic parallel projection, Computer Graphics

Assignment Help:

For orthographic parallel projection:   

glOrtho(left, right, bottom, top, near, far); 

glOrtho2D(left, right, bottom, top);   

Here left, right define the x-direction extents, bottom, top define y-direction extents and near, far define the z-direction extents of the view volume. gluOrtho2D is exactly like glOrtho, but with near = -1 and far = 1. That is, gluOrtho2D views points that have z-value between -1 and 1. Usually, gluOrtho2D is used when drawing two-dimensional figures that lie in the xy-plane, with z = 0.


Related Discussions:- For orthographic parallel projection

Gourand shading, This renders a polygon surface by linearly interpolating i...

This renders a polygon surface by linearly interpolating intensity values across the surface. Intensity values for each polygon are matched with the values of adjacent polygon alon

Define computer graphics, Define Computer graphics.  Computer graphics ...

Define Computer graphics.  Computer graphics remains one of the most popular and rapidly growing computer fields. Computer graphics may be explained as a pictorial representati

Mapping of a fraction -windowing transformations, Mapping of a Fraction -Wi...

Mapping of a Fraction -Windowing Transformations The mapping of a fraction of a world coordinate scene to device coordinates is considered to as Viewing Transformation. In com

What is the use of control points, What is the use of control points?  ...

What is the use of control points?  Spline curve can be specified by giving a set of coordinate positions known as control points, which shows the general shape of the curve, c

What is the real value, QUESTION (a) People want to know design pattern...

QUESTION (a) People want to know design patterns. i) What should their attitude be about design patterns? ii) How can people use design patterns to do a better job?

Write c program which takes points as input from mouse click, Write a C pro...

Write a C program which takes points as input from mouse clicks (left button) and then performs an action.  Apply your program to generate a closed polygon as follows: Every time a

Delta-delta arrangement and in-line arrangement, Delta-Delta Arrangement an...

Delta-Delta Arrangement and In-Line Arrangement There are two types of shadow masks available, delta-delta arrangement and in-line arrangement. The in-line arrangement refers t

High level techniques - motion specification, High Level Techniques (Motion...

High Level Techniques (Motion Generalized) These are techniques utilized to explain the general motion behavior of any type of graphic object. Such techniques are algorithms o

Storing information structures in display memory, What is the major disadva...

What is the major disadvantages of storing information structures in display memory? A major disadvantage of storing information structures in display memory is that when color an

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