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

Cases of clip a line segment-pq, Cases of clip a line segment-pq Case...

Cases of clip a line segment-pq Case 1: As we determine a new value of t E that is value of parameter t for any potentially entering (PE) point we select t max as:  t max

Introduction of 2-d and 3-d transformations, Introduction of 2-D and 3-D  ...

Introduction of 2-D and 3-D  Transformations In this, the subsequent things have been discussed in detail as given below: Different geometric transformations as transla

Two kinds of video tele conference systems, There are mostly two kinds of V...

There are mostly two kinds of Video Tele Conference systems: 1) Desktop systems are add-ons to normal PC's, transforming them in Video Tele Conference devices. A range of variou

Derive the common transformation of parallel projection, Derive the common ...

Derive the common transformation of parallel projection into the xy-plane in the direction of projection d=aI+bJ+cK. Solution: The common transformation of parallel projection

What is a video transition, QUESTION 1. Describe two methods for conver...

QUESTION 1. Describe two methods for converting 16x9 widescreen movie to 4x3. 2. Explain clearly the difference between File Format and Codec. 3. What is a video transiti

Representation schemes used in three dimensional object, What are the vario...

What are the various representation schemes used in three dimensional objects?  Boundary representation (B-res) - explain the 3 dimensional objects as a set of surfaces that se

What is 2d, Question 1 What is 2D? Explain method of converting 2D pattern...

Question 1 What is 2D? Explain method of converting 2D patterns into 3D images Question 2 Write about the following tools to create dart Create dart Multiply dar

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

Scaling, Scaling, shear, reflection and Viewing coordinates 1) Scaling,...

Scaling, shear, reflection and Viewing coordinates 1) Scaling, shear and reflection operations have natural extensions to 3D.    2)  Viewing coordinates are the coordinates

Introduction of viewing transformations, Introduction of Viewing  Transfor...

Introduction of Viewing  Transformations Projection is fundamentally a transformation or mapping of 3D objects upon 2D screen. Projection is mostly categorised in Para

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