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main.cpp.save-failed
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main.cpp.save-failed
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#include<stdio.h>
#include<GL/glut.h>
void mydisplay();
void display();
void frontsreen();
void drawstring();
void setFont();
//void myMouse();
void helpscreen();
void *currentfont;
GLint flag=0;
int fontMenu,mainMenu;
// menu status
int menuFlag = 0;
// default font
void *font = GLUT_BITMAP_TIMES_ROMAN_24;
#define basics 1
#define mainf 2
#define reshape 3
#define animate 4
#define keyboard 5
#define camview 6
#define navgs 7
void setFont(void *font)
{
currentfont=font;
}
void drawstring(float x,float y,float z,char *string)
{
char *c;
glRasterPos3f(x,y,z);
for(c=string;*c!='\0';c++)
{ glColor3f(0.0,0.0,0.0);
glutBitmapCharacter(currentfont,*c);
}
}
void frontscreen(void)
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0.15,0.1,0.11,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1,0,0);
drawstring(450.0,700.0,0.0," THE OXFORD COLLEGE OF ENGINEERING ");
glColor3f(0.7,0,1);
drawstring(330,650,0.0,"DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING");
glColor3f(1,0.5,0);
drawstring(530,600,0.0,"A MINI PROJECT ON");
glColor3f(1,0,0);
drawstring(360,500,0.0," OPENGL DOCUMENTATION");
glColor3f(1,0.5,0);
drawstring(200,400,0.0,"BY:");
glColor3f(1,1,1);
drawstring(100,300,0.0,"ANIKET KUMAR SINGH(1OX15CS010)");
glColor3f(1,1,1);
drawstring(100,260,0.0,"AMAN KUMAR PANDEY (1OX15CS008)");
glColor3f(1,1,1);
drawstring(100,220,0.0,"KALI KIRAN KUMAR K (1OX15CS047)");
glColor3f(1,1,1);
drawstring(100,180,0.0,"MANEESH KUMAR V (1OX15CS052)");
glColor3f(1,0.5,0);
drawstring(980,400,0.0,"GUIDES:");
glColor3f(1,1,1);
drawstring(930,300,0.0," MR. SENTHIL KUMAR");
glColor3f(1,0.1,1);
drawstring(543,100,0.0,"PRESS ENTER TO GET STARTED");
glFlush();
}
void helpscreen()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"NAVIGATION");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"SHEET");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"PRESS NUMBER 1 - 7 TO TO KNOW THE HISTORY OF OPENGL MAJOR RELEASES");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"Methods in OpenGL");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"Press the mapped key to navigate to the reference page:");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0," a -> glBegin b -> glClear c -> glClearColor");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0," d -> glEnable e -> glFlush f -> glColor");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0," g -> glMatrixMode h -> glLoadIdentity i -> glOrtho");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,460.0,0.0," j -> glutMainLoop k -> glutInit l -> glutInitWindowSize ");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,430.0,0.0," m -> glutBitmapCharacter n -> glutKeyboardFunc o -> glutSwapBuffers");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,400.0,0.0," p -> glutInitDisplayMode q -> glutCreateWindow r -> glutReshapeFunc");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,370.0,0.0," s -> glutIdleFunc t -> gluLookAt u -> glut");
glColor3f(0.5,0.7,0.9);
drawstring(300.0,30.0,0.0,"PRESS ESC KEY TO RETURN TO NAVIGATION SHEET");
glFlush();
}
void startscreen()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"WHAT");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0,"IS");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"OPENGL ?");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"OPENGL refers to Open Graphics Library");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,540.0,0.0,"It is a Cross-Language, Cross-Platform Application Programming Interface");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,500.0,0.0,"for rendering 2D and 3D vector graphics");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,460.0,0.0,"Since its introduction in 1992, OpenGL has become the industry's most widely used and supported ");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,420.0,0.0,"2D and 3D graphics application programming interface (API), bringing thousands of applications ");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,380.0,0.0,"to a wide variety of computer platforms.");
glColor3f(0.2,0.1,0.9);
drawstring(350.0,325.0,0.0,"MAJOR RELEASES IN OPENGL");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,300.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,280.0,0.0,"| OPENGL VERSIONS | RELEASE DATE |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,265.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,250.0,0.0,"| OpenGL 1.0 | 1992 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,235.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,210.0,0.0,"| OPENGL 1.5 | 2003 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,195.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,180.0,0.0,"| OPENGL 2.0 | 2004 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,165.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,150.0,0.0,"| OPENGL 3.0 | 2008 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,135.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,120.0,0.0,"| OPENGL 4.0 | 2010 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,105.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,90.0,0.0,"| OPENGL 4.3 | 2012 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,75.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,60.0,0.0,"| OPENGL 4.5 | 2014 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,45.0,0.0,"+----------------+-------------+");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,30.0,0.0,"| OPENGL 4.6 | 2017 |");
glColor3f(0.5,0.1,0.9);
drawstring(300.0,15.0,0.0,"+----------------+-------------+");
glFlush();
}
void openglver10()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"1.0");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"The first version of OpenGL, version 1.0, was released in January 1992 by Mark Segal and Kurt Akeley.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0," Since then, OpenGL has occasionally been extended by releasing a new version of the specification.");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"Such releases define a baseline set of features which all conforming graphics cards must support,");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0," and against which new extensions can more easily be written.");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0,"Each new version of OpenGL tends to incorporate several extensions which have widespread support");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"among graphics-card vendors, although the details of those extensions may be changed.");
glFlush();
}
void opengl15()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"1.5");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"Alongside the release of OpenGL 1.5, the ARB released the OpenGL Shading Language specification,");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"and the extensions ARB_shader_objects, ARB_vertex_shader, and ARB_fragment_shader.");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,570.0,0.0,"EXTESIONS ADDED IN THIS RELEASE:");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,540.0,0.0,"ARB_vertex_buffer_object : ");
glColor3f(0.5,0.1,0.8);
drawstring(250.0,520.0,0.0,"A new type of GL object, the 'buffer', which stores various types of data in fast video memory");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"ARB_occlusion_query : ");
glColor3f(0.5,0.1,0.9);
drawstring(250.0,460.0,0.0,"The programmer may query whether or not a primitive was occluded during rendering");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,430.0,0.0,"EXT_shadow_funcs : ");
glColor3f(0.5,0.1,0.9);
drawstring(250.0,400.0,0.0,"The abilities of the ARB_shadow extension are slightly extended.");
glFlush();
}
void opengl20()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"2.0");
glColor3f(0.5,0.1,0.2);
drawstring(350.0,640.0,0.0,"OPENGL 2.0 was released on September 7, 2004.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"OpenGL 2.0 was originally conceived by 3Dlabs to address concerns that OpenGL was stagnating ");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"and lacked a strong direction. 3Dlabs proposed a number of major additions to the standard.");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0,"The final OpenGL 2.0 specification[31] includes support for GLSL.");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0,"EXTESIONS ADDED IN THIS RELEASE:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"ARB_shader_objects,ARB_vertex_shader,ARB_fragment_shader,ARB_shading_language_100 : ");
glColor3f(0.5,0.1,0.8);
drawstring(220.0,460.0,0.0,"Provides direct access to programmable vertex and fragment processors");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,430.0,0.0,"ARB_texture_non_power_of_two : ");
glColor3f(0.5,0.1,0.8);
drawstring(220.0,400.0,0.0,"Texture images may have non-power-of-two dimensions ");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,370.0,0.0,"ARB_point_sprite");
glColor3f(0.5,0.1,0.8);
drawstring(220.0,340.0,0.0,"Points may be rendered as small, screen-oriented texture quads; useful when developing particle systems ");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,310.0,0.0,"EXT_stencil_two_side, ATI_separate_stencil : ");
glColor3f(0.5,0.1,0.8);
drawstring(220.0,280.0,0.0,"Separate stencil algorithms may be used when rendering the front and back faces of primitives");
glFlush();
}
void opengl30()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"3.0");
glColor3f(0.5,0.1,0.2);
drawstring(350.0,640.0,0.0,"OPENGL 3.0 was released on August 11, 2008. ");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"OpenGL 3.0 introduced a deprecation mechanism to simplify future revisions of the API.");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"Certain features, marked as deprecated, could be completely disabled by requesting a ");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0,"forward-compatible context from the windowing system. OpenGL 3.0 features could");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0,"still be accessed alongside these deprecated features, however, by requesting a full context.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"Deprecated features include :");
glColor3f(0.5,0.1,0.9);
drawstring(220.0,460.0,0.0,"* All fixed-function vertex and fragment processing");
glColor3f(0.5,0.1,0.9);
drawstring(220.0,430.0,0.0,"* Direct-mode rendering, using glBegin and glEnd");
glColor3f(0.5,0.1,0.9);
drawstring(220.0,400.0,0.0,"* Display lists");
glColor3f(0.5,0.1,0.9);
drawstring(220.0,370.0,0.0,"* Indexed-color rendering targets");
glColor3f(0.5,0.1,0.9);
drawstring(220.0,340.0,0.0,"* OpenGL Shading Language versions 1.10 and 1.20");
glFlush();
}
void opengl40()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"4.0");
glColor3f(0.5,0.1,0.2);
drawstring(350.0,640.0,0.0,"OPENGL VERSION 4.0 was released on March 11, 2010");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"OpenGL 4.0 was released alongside version 3.3. It was designed for hardware able to support Direct3D 11.");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"As in OpenGL 3.0, this version of OpenGL contains a high number of fairly inconsequential extensions,");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0," designed to thoroughly expose the abilities of Direct3D 11-class hardware.");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0,"Hardware support: Nvidia GeForce 400 series and newer, AMD Radeon HD 5000 Series and newer, ");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"Intel HD Graphics in Intel Ivy Bridge processors and newer.");
glFlush();
}
void opengl45()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"4.5");
glColor3f(0.5,0.1,0.2);
drawstring(350.0,640.0,0.0,"OPENGL VERSION 4.5 was released on August 11, 2014");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"Direct State Access (DSA) object accessors enable state to be queried and modified");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"without binding objects to contexts,for increased application,middleware efficiency and flexibility");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0,"Flush Control applications can control flushing of pending commands before context switching.");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0,"Robustness providing a secure platform for applications such as WebGL browsers.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"OpenGL ES 3.1 API and shader compatibility to enable the easy development and execution of the latest OpenGL ES applications");
glFlush();
}
void opengl46()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"OPENGL");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," VER");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"4.6");
glColor3f(0.5,0.1,0.2);
drawstring(350.0,640.0,0.0,"OPENGL VERSION 4.6 was released on July 31, 2017");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"+ more efficient, GPU-sided, geometry processing");
glColor3f(0.5,0.1,0.4);
drawstring(200.0,580.0,0.0,"+ more efficient shader execution (AZDO)");
glColor3f(0.4,0.1,0.5);
drawstring(200.0,550.0,0.0,"+ more information through statistics, overflow query and counters");
glColor3f(0.5,0.1,0.8);
drawstring(200.0,520.0,0.0,"+ clamping of polygon offset function, solves a shadow rendering problem");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,490.0,0.0,"+ higher performance through no error handling contexts");
glFlush();
}
void a()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"glBegin");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," and ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"glEnd");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"glBegin and glEnd delimit the vertices that define a primitive or a group of like primitives.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"glBegin accepts a single argument that specifies which way the vertices are interpreted.");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"Taking n as an integer count starting at one,and N as the total number of vertices specified,");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0," the interpretations are as follows:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"GL_POINTS : Treats each vertex as a single point. Vertex n defines point n. N points are drawn.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"GL_LINES : Treats each pair of vertices as an independent line segment.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"GL_LINE_STRIP : Draws a connected group of line segments from the first vertex to the last. Vertices n and");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0," n+1 define line n. N-1 lines drawn.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0," GL_LINE_LOOP : Draws a connected group of line segments from the first vertex to the last,then back to the first.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0," Vertices n and n+1 define line n. The last line, however, is defined by vertices N and 1. N lines are drawn.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"GL_TRIANGLES : Treates each triplet of vertices as an independent triangle. Vertices 3n-2, 3n-1, ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0," and 3n define triangle n. N/3 triangles are drawn.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"GL_TRIANGLE_STRIP :Draws connected group of triangles.One triangle is defined for each vertex presented after the first two vertices.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0,"GL_QUADS : Treats each group of four vertices as an independent quadrilateral. N/4 quadrilaterals are drawn.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,220.0,0.0,"GL_POLYGON : Draws a single, convex polygon. Vertices 1 through N define this polygon.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,190.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,160.0,0.0,"void glBegin(GLenum mode)");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0,"Ten symbolic constants are accepted: GL_POINTS, GL_LINES, GL_LINE_STRIP, GL_LINE_LOOP, ");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,70.0,0.0,"GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS, GL_QUAD_STRIP,");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,50.0,0.0," and GL_POLYGON.");
glFlush();
}
void b()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(650.0,700.0,0.0,"glClear");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"clear buffers within the viewport");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glClear( GLbitfield mask )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"Bitwise OR of masks that indicate the buffers to be cleared. The four masks are GL_COLOR_BUFFER_BIT,");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0," GL_DEPTH_BUFFER_BIT, GL_ACCUM_BUFFER_BIT, and GL_STENCIL_BUFFER_BIT");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"GL_COLOR_BUFFER_BIT : Indicates the buffers currently enabled for color writing.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"GL_DEPTH_BUFFER_BIT : Indicates the depth buffer. ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"GL_ACCUM_BUFFER_BIT : Indicates the accumulation buffer.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0," GL_STENCIL_BUFFER_BIT : Indicates the stencil buffer.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"NOTES:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"If a buffer is not present, then a glClear directed at that buffer has no effect.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0,"glClear sets the bitplane area of the window to values previously selected by glClearColor");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,220.0,0.0," glClearIndex, glClearDepth, glClearStencil, and glClearAccum. Multiple color buffers can be");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,190.0,0.0," cleared simultaneously by selecting more than one buffer at a time using glDrawBuffer.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,160.0,0.0,"glClear takes a single argument that is the bitwise OR of several values indicating which buffer is to be cleared.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"ERRORS:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0,"GL_INVALID_VALUE is generated if any bit other than the four defined bits is set in mask.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,70.0,0.0,"GL_INVALID_OPERATION is generated if glClear is called between a call to glBegin");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,50.0,0.0," and the corresponding call to glEnd.");
glFlush();
}
void c()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," glClearColor ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"Specify the red, green, blue, and alpha values used when the color buffers are cleared.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0," The default values are all zero.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"glClearColor specifies the red, green, blue, and alpha values used by glClear to clear the ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"color buffers. Values specified by glClearColor are clamped to the range [0,1].");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"ERRORS: ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"GL_INVALID_OPERATION is generated if glClearColor is called between");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"a call to glBegin and the corresponding call to glEnd.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,".");
glFlush();
}
void d()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0," glEnable ");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," and ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0," glDisable ");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"enable or disable GL capabilities");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glEnable( GLenum cap )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"cap - Specifies a symbolic constant indicating a GL capability.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"glEnable and glDisable enable and disable various capabilities.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0," Use glIsEnabled or glGet to determine the current setting of any capability.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"Both glEnable and glDisable take a single argument, cap, which can assume one of the following values:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"GL_ALPHA_TEST : If enabled, do alpha testing. ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"GL_BLEND : If enabled, blend the incoming RGBA color values with the values in the color buffers");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"GL_DEPTH_TEST : If enabled, do depth comparisons and update the depth buffer.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"GL_LIGHTING : If enabled, use the current lighting parameters to compute the vertex color or index");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0,"GL_LINE_SMOOTH : If enabled, draw lines with correct filtering. Otherwise, draw aliased lines");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,220.0,0.0,"GL_NORMALIZE : If enabled, normal vectors specified with glNormal are scaled to unit length after transformation");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,190.0,0.0,"ERRORS:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,160.0,0.0,"GL_INVALID_ENUM is generated if cap is not one of the values listed above.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"GL_INVALID_OPERATION is generated if glEnable is called between a call to glBegin ");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0,"and the corresponding call to glEnd.");
glFlush();
}
void e()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," glFlush ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0," force execution of GL commands in finite time");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glFlush( void )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"Does not take any parameters.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"Different GL implementations buffer commands in several different locations, including");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"network buffers and the graphics accelerator itself. glFlush empties all of these buffers, ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"causing all issued commands to be executed as quickly as they are accepted by the actual");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"rendering engine. Though this execution may not be completed in any particular time period,");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"it does complete in finite time.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"Because any GL program might be executed over a network, or on an accelerator that buffers commands,");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0," all programs should call glFlush whenever they count on having all of their previously issued ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0,"commands completed. For example, call glFlush before waiting for user input that depends on the generated image.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,220.0,0.0,"NOTES:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,190.0,0.0,"glFlush does not wait until the execution of all previously issued OpenGL commands is complete.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,160.0,0.0,"ERRORS:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"GL_INVALID_OPERATION is generated if glFlush is called between a call to");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0," glBegin and the corresponding call to glEnd.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,70.0,0.0,"");
glFlush();
}
void f()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," glColor");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"Used to set color to any object.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glColor3f( GLfloat red, GLfloat green, GLfloat blue ) ");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"red, green, blue - Specify new red, green, and blue values for the current color.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"alpha - Specifies a new alpha value for the current color. Included only in the four-argument glColor4 command.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"The GL stores both a current single-valued color index and a current four-valued RGBA color. ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0," glColor sets a new four-valued RGBA color. glColor has two major variants: glColor3 and glColor4.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"glColor3 variants specify new red, green, and blue values explicitly, and set the current alpha ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"value to 1.0 implicitly. glColor4 variants specify all four color components explicitly.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"glColor3b, glColor4b, glColor3s, glColor4s, glColor3i, and glColor4i take three or four unsigned byte,");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"short, or long integers as arguments. When v is appended to the name, the color commands can take");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0," a pointer to an array of such values.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,220.0,0.0,"NOTES:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,190.0,0.0,"The current color can be updated at any time. In particular, glColor can be called between a");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,160.0,0.0,"glBegin and the corresponding call to glEnd.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"Example:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0,"glColor3f(1.0,0.0,0.0):");
glColor3f(0.5,0.1,0.9);
drawstring(230.0,70.0,0.0,"Sets the color to red.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,50.0,0.0,"");
glFlush();
}
void g()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0,"glMatrixMode");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"specify which matrix is the current matrix");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glMatrixMode( GLenum mode )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"Specifies which matrix stack is the target for subsequent matrix operations.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"Three values are accepted: GL_MODELVIEW, GL_PROJECTION, and GL_TEXTURE.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"glMatrixMode sets the current matrix mode. mode can assume one of three values:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"GL_MODELVIEW : Applies subsequent matrix operations to the modelview matrix stack");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"GL_PROJECTION : Applies subsequent matrix operations to the projection matrix stack ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"GL_TEXTURE : Applies subsequent matrix operations to the texture matrix stack");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,160.0,0.0,"ERRORS");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"GL_INVALID_ENUM is generated if mode is not an accepted value.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0,"GL_INVALID_OPERATION is generated if glMatrixMode is called between");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,70.0,0.0,"a call to glBegin and the corresponding call to glEnd.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,50.0,0.0,"");
glFlush();
}
void h()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0,"glLoadIdentity");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"replace the current matrix with the identity matrix");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glLoadIdentity( void )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"glLoadIdentity replaces the current matrix with the identity matrix.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"It is semantically equivalent to calling glLoadMatrix with the identity matrix.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"ERRORS:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,100.0,0.0,"GL_INVALID_OPERATION is generated if glLoadIdentity is called between");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,70.0,0.0,"a call to glBegin and the corresponding call to glEnd.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,50.0,0.0,"");
glFlush();
}
void i()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0,"glOrtho");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0," void glOrtho(GLdouble left,GLdouble right,GLdouble bottom,GLdouble top,GLdouble zNear,GLdouble zFar )");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0," left,right - Specify the coordinates for the left and right vertical clipping planes");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"bottom,top - Specify the coordinates for the bottom and top horizontal clipping planes.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"zNear,zFar - Specify the distances to the nearer and farther depth clipping planes.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"These values are negative if the plane is to be behind the viewer.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"DESCRIPTION");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"glOrtho describes a transformation that produces a parallel projection. ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"zFar specifies the location of the far clipping plane.zNear specifies near clipping plane.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0," Both zNear and zFar can be either positive or negative.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"Use glPushMatrix and glPopMatrix to save and restore the current matrix stack.");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,190.0,0.0,"ERRORS:");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,160.0,0.0,"GL_INVALID_OPERATION is generated if glOrtho is executed between the ");
glColor3f(0.5,0.1,0.9);
drawstring(200.0,130.0,0.0,"execution of glBegin and the corresponding execution of glEnd.");
glFlush();
}
void j()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," glutMainLoop ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"enters the GLUT event processing loop.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glutMainLoop(void);");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"Does not take any parameters.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"glutMainLoop enters the GLUT event processing loop. This routine should be called");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0," at most once in a GLUT program. Once called, this routine will never return. It will ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"call as necessary any callbacks that have been registered.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0," ");
glFlush();
}
void k()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," glutInit ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"glutInit is used to initialize the GLUT library.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(50.0,580.0,0.0,"void glutInit(int *argcp, char **argv);");
glColor3f(0.4,0.1,0.5);
drawstring(50.0,550.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"argcp:");
glColor3f(0.5,0.1,0.9);
drawstring(60.0,490.0,0.0,"A pointer to the program's unmodified argc variable from main. Upon return, the value pointed to");
glColor3f(0.5,0.1,0.9);
drawstring(60.0,460.0,0.0,"by argcp will be updated, because glutInit extracts any command line options");
glColor3f(0.5,0.1,0.9);
drawstring(60.0,430.0,0.0,"intended for the GLUT library.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"argv:");
glColor3f(0.5,0.1,0.9);
drawstring(60.0,370.0,0.0,"The program's unmodified argv variable from main. Like argcp, the data for argv will be");
glColor3f(0.5,0.1,0.9);
drawstring(60.0,340.0,0.0,"updated because glutInit extracts any command line options understood by the GLUT library.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"glutInit will initialize the GLUT library and negotiate a session with the window system.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0,"During this process, glutInit may cause the termination of the GLUT program with an error");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,220.0,0.0,"message to the user if GLUT cannot be properly initialized. Examples of this situation ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,190.0,0.0,"include the failure to connect to the window system, the lack of window system support for OpenGL,");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,160.0,0.0,"and invalid command line options.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,130.0,0.0,"glutInit also processes command line options, but the specific options parse are window system dependent.");
glFlush();
}
void l()
{
setFont(GLUT_BITMAP_TIMES_ROMAN_24);
glClearColor(0,0,0,0);/*background for cover page*/
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0,1,0);
drawstring(550.0,700.0,0.0,"glutInitWindowPosition");
glColor3f(1,0,0);
drawstring(650.0,700.0,0.0," and ");
glColor3f(0,0,1);
drawstring(750.0,700.0,0.0,"glutInitWindowSize");
glColor3f(0.5,0.1,0.2);
drawstring(200.0,640.0,0.0,"glutInitWindowPosition and glutInitWindowSize set the initial window position and size respectively.");
glColor3f(0.5,0.1,0.3);
drawstring(200.0,610.0,0.0,"C SPECIFICATION:");
glColor3f(0.5,0.1,0.4);
drawstring(70.0,580.0,0.0,"void glutInitWindowSize(int width, int height);");
glColor3f(0.4,0.1,0.5);
drawstring(70.0,550.0,0.0,"void glutInitWindowPosition(int x, int y);");
glColor3f(0.5,0.1,0.8);
drawstring(50.0,520.0,0.0,"PARAMETERS:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,490.0,0.0,"width - Width in pixels");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,460.0,0.0,"height - Height in pixels");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,430.0,0.0,"x - Window X location in pixels");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,400.0,0.0,"y - Window Y location in pixels");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,370.0,0.0,"DESCRIPTION:");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,340.0,0.0,"Windows created by glutCreateWindow will be requested to be created with the current initial ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,310.0,0.0,"window position and size.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,280.0,0.0,"The initial value of the initial window position GLUT state is -1 and -1.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,250.0,0.0,"If either the X or Y component to the initial window position is negative, the actual window ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,220.0,0.0,"position is left to the window system to determine. The initial value of the initial window size");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,190.0,0.0,"GLUT state is 300 by 300. The initial window size components must be greater than zero.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,160.0,0.0,"The intent of the initial window position and size values is to provide a suggestion to the window ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,130.0,0.0,"system for a window's initial size and position.The window system is not obligated to use this information.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,100.0,0.0," Therefore, GLUT programs should not assume the window was created at the specified size or position. ");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,70.0,0.0," A GLUT program should use the window's reshape callback to determine the true size of the window.");
glColor3f(0.5,0.1,0.9);
drawstring(50.0,50.0,0.0,"");
glFlush();
}