opengl, Computer Graphics

Assignment Help:
Write a program that allows interactive manipulation of the position and orientation of a camera.
Draw a teapot at the global origin 0,0,0.
You can find a shaded teapot model and source code teapot_glut.c.

Initially, the camera is at 0,0,10 looking down the -z axis (looking at the origin 0,0,0).



The main objective of this homework is to manipulate the position and orientation of the camera. The position of the camera is restricted to be on the surface of a virtual sphere with the radius of 10. So you can imagine a teapot at the origin, and a camera on a surrounding sphere pointing at the teapot.

There are two camera manipulation instruction, elevation and swing. In elevation mode, the camera should be elevated on the surface of the sphere while maintaining the look-at point at the origin. The range of elevation on the surface of a sphere is between -90 and 90 degree. Use mouse motion function to implement the user interaction. Users should be able to elevate the camera by dragging mouse upward.

In swing mode, the camera should be moved sideways on the surface of the sphere while maintaining the look-at point at the origin. Use mouse motion function to implement the user interaction. Users should be able to swing the camera by dragging mouse sideways. Note that during the swing operation, the elevation level should be preserved and the camera should not tilt sideways.

Using a pull-down menu, a user should be able to toggle between grid view on and off.
Quit menu will terminate the program.

Related Discussions:- opengl

Categories of parallel projection - viewing transformation, Categories of P...

Categories of Parallel Projection Parallel projection can be categorized as per to the angle which the direction of projection makes along with the projection plane. For illu

Basic transformations - 2-d and 3-d transformations, Basic Transformations ...

Basic Transformations - 2-d and 3-d Transformations Consider the xy-coordinate system upon a plane. An object or Obj in a plane can be identified as a set of points. All objec

Program to implement procedures or functions, The goal of this assignment i...

The goal of this assignment is to implement procedures/functions using x86 assembly. In addition to implementing procedures/functions, this assignment requires to pass arguments us

What is meant by scan code, What is meant by scan code? When a key is p...

What is meant by scan code? When a key is pressed on the keyboard, the keyboard controller places a code bear to the key pressed into a part of the memory known as the keyboard

What is the need of homogeneous coordinates, What is the need of homogeneou...

What is the need of homogeneous coordinates?  To perform more than one transformation at a time, use homogeneous coordinates or matrixes. They decrease unwanted calculations in

Subdivision algorithm - visible surface detection, Subdivision Algorithm - ...

Subdivision Algorithm - Visible Surface Detection 1) Initialize the area to be the whole screen. 2) Create a PVPL regarding an area, sorted on z min as the smallest z coor

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