OpenGL Projects on SIMULATION OF WATER RIPPELS

Under the guidance of:

Mr. S Prabhudeva B.E, M.S. (Ph.D) Mrs. Thaseen Bhashith B.E,M.Tech

Assoc. Prof, Dept. of CSE Lecturer, Dept. of CSE

Submitted by:

ARUN KUMAR .K 4JN08CS401 AYOOB C.H 4JN04CS013

Jawaharlal Nehru National College of Engineering

Department of Computer Science & Engineering

Contents

AbstractAbout Computer GraphicsAbout openGL Introduction Working principleDesign and ImplementationConclusion & Future scopeReferences

Abstract

To demonstrate the simulation of water ripples on surface by using open-GL APIs.

About Computer Graphics

A powerful tool for the rapid and economical production of pictures.

Is a generalized tool for drawing and creating pictures.

Simulate the real world situations within a small computer window.

About openGL

• OpenGL is a device and operating system independent library for 3D-graphics and rendering.

• OpenGL is a standard specification defining a cross-language, cross-platform API.

• The interface consists of many different function calls which can be used for building application programs.

• OpenGL is portable to many platforms and callable from many programming languages.

Aim:To develop a graphics package that utilizes the features of the computer graphics.

Objectives:The main objective this project is to graphically illustrate the simulation of water ripples on surface.

Introduction

Working principle

We need 2 arrays of words (integers). That is , words, not bytes. These arrays will hold the state of the water.

One holds the current state, the other holds the state from the previous frame. It is important that we have 2 arrays, since we need to know how the water has changed since the last frame, and the frame before that.

Cont working…

Cont Working…

• Data from the previous frame (Buffer2) and the frame before that (Buffer1) are used together, and the results written into Buffer1.Buffer1 contains the current state of the water.

• Data from the previous frame (Buffer1) and the frame before that (Buffer2) are used together, and the results written into Buffer2. Buffer2 contains the current state of the water.

Cont Working…

Design and Implementation

Built-in library functions :

• glViewport(0, 0, width, height);

• glMatrixMode(GL_PROJECTION);

• glLoadIdentity();

• gluPerspective(40.0, (GLfloat) w/(GLfloat) h, 1.0, 2000.0);

• glMatrixMode(GL_MODELVIEW);

• glLoadIdentity ();

• glutSwapBuffers();

• glutFullScreen();

User defined functions:

• calcwater()

• exit(int code)

• idle(void)

• motion(int x,int y)

Results

Cont Snapshots…

Conclusion & Future scope

The very purpose of developing this project is to exploit the strength of OpenGL graphics capabilities and to implement the concepts of simulations of water ripples on surface of water.

This package can be made more effectively for operators used in many computer languages like C, C++, etc, and can be made 3D.

References

Edward Angel –Interactive Computer Graphics- A Top –Down Approach Using OpenGL, Addision Wesley Publications 5th Edition in C-2009

The Official Reference Document for OpenGL Addison-Wesley Publishing Company

Source code on OpenGL Projects

THANK YOU