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

Explain the merits and demerits of plasma panel display, Explain the merits...

Explain the merits and demerits of Plasma panel display. Advantages: Refreshing is not needed. Produce a very steady image free of Flicker. Less bulky than a CRT.

Interactive Computer Graphics, Explain the different input modes used in in...

Explain the different input modes used in interactive computer graphics.

What is scaling, What is scaling?  The scaling transformations changes...

What is scaling?  The scaling transformations changes the shape of an object and can be carried out by multiplying every vertex (x,y) by scaling factor Sx, Sy where Sx is the

Translate a triangle and scale it in coordinate direction, Translate a tria...

Translate a triangle and scale it in each coordinate direction Consider a triangle with vertices in 2D plane given by (0, 0), (1, 0) and (0,1) (called unit triangle).  Translat

Phong model or phong specular reflection model, Phong Model or Phong Specul...

Phong Model or Phong Specular Reflection Model It is an empirical model that is not based on physics, although physical observation. Phong observed here for extremely shiny su

Gourand shading and phong shading, Gourand shading and Phong shading ...

Gourand shading and Phong shading a. Gourand shading OR Intensity interpolation scheme We will discuss such scheme in further section of Gourand shading OR Intensity in

Briefly describe the variants of the interaction model, Question: a) Th...

Question: a) The implications of transparency are a major influence on the design of system software. There are eight forms of transparency. Name and give a small description o

Polygon -rendering methods, Polygon -Rendering Methods Now we will see...

Polygon -Rendering Methods Now we will see the application of an illumination model to execute the rendering of standard graphics objects that are formed along with polygonal

Write a note on mpeg-2, Question 1 Write a note on digitizers Quest...

Question 1 Write a note on digitizers Question 2 Discuss on line drawing algorithm Question 3 Explain 3D viewing Question 4 Explain different types of cohe

List out the merits and demerits of penetration methods, List out the merit...

List out the merits and demerits of Penetration methods?  The merits and demerits of the Penetration methods are as follows  It is a less expensive technique It has

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