// // #include // Header File For The GLUT Library #include // Header File For The OpenGL32 Library #include // Header File For The GLu32 Library #include // Header File For sleeping. #include /* ASCII code for the escape key. */ #define ESCAPE 27 /* The number of our GLUT window */ int window; /* rotation angle for the triangle. */ float rtri = 0.0f; float spvx=0.0; float spvy=0.0; float spvz=0.0; float spx=0.3; float spxx=0.0; float spy=0.1; float spz=0.005; float spzz=0.0; float theta=0.0; float thetai=0.0; float r=0.0; float yad=2.0; float xad=2.4; float spyy; int flag; /* rotation angle for the quadrilateral. */ float rquad = 0.0f; /* A general OpenGL initialization function. Sets all of the initial parameters. */ void InitGL(int Width, int Height) // We call this right after our OpenGL window is created. { glClearColor(1.0f, 1.0f, 1.0f, 0.0f); // This Will Clear The Background Color To Black glClearDepth(1.0); // Enables Clearing Of The Depth Buffer glDepthFunc(GL_LESS); // The Type Of Depth Test To Do glEnable(GL_DEPTH_TEST); // Enables Depth Testing glShadeModel(GL_SMOOTH); // Enables Smooth Color Shading glMatrixMode(GL_PROJECTION); glLoadIdentity(); // Reset The Projection Matrix gluPerspective(45.0f,(GLfloat)Width/(GLfloat)Height,0.1f,100.0f); // Calculate The Aspect Ratio Of The Window glMatrixMode(GL_MODELVIEW); } /* The function called when our window is resized (which shouldn't happen, because we're fullscreen) */ void ReSizeGLScene(int Width, int Height) { if (Height==0) // Prevent A Divide By Zero If The Window Is Too Small Height=1; glViewport(0, 0, Width, Height); // Reset The Current Viewport And Perspective Transformation glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f,(GLfloat)Width/(GLfloat)Height,0.1f,100.0f); glMatrixMode(GL_MODELVIEW); } void DrawSphere(float x, float y, float z, float radius) { GLUquadricObj *pSphere = gluNewQuadric(); glPushMatrix(); glTranslatef(x,y,z); gluSphere(pSphere, radius, 45, 45); glPopMatrix(); gluDeleteQuadric(pSphere); } /* The main drawing function. */ void DrawGLScene() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer glLoadIdentity(); // Reset The View glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); GLfloat light_pos[]={3.0,0.0,0.0,3.0}; glLightfv(GL_LIGHT0,GL_AMBIENT, light_pos); glEnable(GL_BLEND); glEnable ( GL_DEPTH_TEST ); glTranslatef(-1.2,-1.5,-6.0); // Move Left 1.5 Units And Into The Screen 6.0 // glRotatef(rtri,0.0f,1.0f,0.0f); glColor3f(0.0,1.0,0.0); // thetai=atan(spz/spx); //r=sqrt(spx*spx+spz*spz); //spxx=r*cos(thetai+theta); //spzz=r*sin(thetai+theta); //theta=-(3.1416/180)*rtri; spvx=spvx-spx*0.05; spvz=spvz+spz*0.05; spy=spx*spx-spz*spz+0.07; spyy=spx*spx+0.07; //spy=spx*spx+0.1; spx=spx+spvx*0.1; spz=spz+spvz*0.1; theta=(3.1456/180)*rtri; r=sqrt(spx*spx); DrawSphere(r*cos(theta)*spx/sqrt(spx*spx),spyy+yad,r*sin(theta),0.06); DrawSphere(spx+xad,spy+yad,spz,0.06); if(spy*spy>2){spz=0.01;spvz=0;spy=0.1;} //spx=spxx; //spz=spzz; int i; int j; float x=-1.05; float y=-4.0; float z=-1.05; glDisable(GL_LIGHTING); glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); glEnable(GL_CULL_FACE); glBegin(GL_POLYGON); //glTranslatef(0.0,-6.0,-6.0); z=-1.05; for(j=0;j<=40;j++){ z+=0.05; glColor3f(1.0,1.0,1.0); glVertex3f(-1.0+xad,-1.0+yad,z); x=-1.05; for(i=0;i<=40;i++){ glColor3f(2*x,0.0,1.0); x+=0.05; y=x*x-z*z; if(z<0)glColor3f(0.5,1.0,1.0); if(i==0)glColor3f(1.0,1.0,1.0); if(i==40)glColor3f(1.0,1.0,1.0); if(j==0)glColor3f(1.0,1.0,1.0); if(j==40)glColor3f(1.0,1.0,1.0); glVertex3f(x+xad,y+yad,z);} glColor3f(1.0,1.0,1.0); glVertex3f(1.0+xad,-1.0+yad,z);} x=-1.05; z=-1.05; for(j=0;j<=40;j++){ x+=0.05; glColor3f(1.0,1.0,1.0); glVertex3f(x+xad,-1.0+yad,-1.0); z=-1.05; for(i=0;i<=40;i++){ glColor3f(2*z,0.0,1.0); z+=0.05; y=x*x-z*z; if(z<0)glColor3f(0.5,1.0,1.0); if(i==0)glColor3f(1.0,1.0,1.0); if(i==40)glColor3f(1.0,1.0,1.0); if(j==0)glColor3f(1.0,1.0,1.0); if(j==40)glColor3f(1.0,1.0,1.0); glVertex3f(x+xad,y+yad,z);} glColor3f(1.0,1.0,1.0); glVertex3f(x+xad,-1.0+yad,1.0);} glEnd(); glRotatef(rtri,0.0,1.0,0.0); glBegin(GL_POLYGON); //glTranslatef(0.0,-6.0,-6.0); z=-1.05; for(j=0;j<=40;j++){ z+=0.05; glColor3f(1.0,1.0,1.0); glVertex3f(-1.0,-2.0+yad,z); x=-1.05; for(i=0;i<=40;i++){ glColor3f(2*x,0.0,1.0); x+=0.05; y=x*x-z*z; if(z<0)glColor3f(0.5,1.0,1.0); if(i==0)glColor3f(1.0,1.0,1.0); if(i==40)glColor3f(1.0,1.0,1.0); if(j==0)glColor3f(1.0,1.0,1.0); if(j==40)glColor3f(1.0,1.0,1.0); glVertex3f(x,y+yad,z);} glColor3f(1.0,1.0,1.0); glVertex3f(1.0,-2.0+yad,z);} x=-1.05; z=-1.05; for(j=0;j<=40;j++){ x+=0.05; glColor3f(1.0,1.0,1.0); glVertex3f(x,-2.0+yad,-1.0); z=-1.05; for(i=0;i<=40;i++){ glColor3f(2*z,0.0,1.0); z+=0.05; y=x*x-z*z; if(z<0)glColor3f(0.5,0.8,1.0); if(i==0)glColor3f(1.0,1.0,1.0); if(i==40)glColor3f(1.0,1.0,1.0); if(j==0)glColor3f(1.0,1.0,1.0); if(j==40)glColor3f(1.0,1.0,1.0); glVertex3f(x,y+yad,z);} glColor3f(1.0,1.0,1.0); glVertex3f(x,-2.0+yad,1.0);} glEnd(); // glRotatef(rtri,0.0f,1.0f,0.0f); // Rotate The Triangle On The Y axis // we're done with the polygon (smooth color interpolation) // glLoadIdentity(); // make sure we're no longer rotated. // glTranslatef(1.5f,0.0f,-6.0f); // Move Right 3 Units, and back into the screen 6.0 //glRotatef(rquad,1.0f,0.0f,0.0f); // Rotate The Quad On The X axis // draw a square (quadrilateral) //glColor3f(0.5f,0.5f,1.0f); // set color to a blue shade. // glBegin(GL_QUADS); // start drawing a polygon (4 sided) //glVertex3f(-1.0f, 1.0f, 0.0f); // Top Left //glVertex3f( 1.0f, 1.0f, 0.0f); // Top Right // glVertex3f( 1.0f,-1.0f, 0.0f); // Bottom Right //glVertex3f(-1.0f,-1.0f, 0.0f); // Bottom Left //glEnd(); // done with the polygon rtri+=1.0; // Increase The Rotation Variable For The Triangle rquad-=15.0f; // Decrease The Rotation Variable For The Quad // spx+=0.005; // swap the buffers to display, since double buffering is used. glutSwapBuffers(); } /* The function called whenever a key is pressed. */ void keyPressed(unsigned char key, int x, int y) { /* sleep to avoid thrashing this procedure */ usleep(100); /* If escape is pressed, kill everything. */ if (key == ESCAPE) { /* shut down our window */ glutDestroyWindow(window); /* exit the program...normal termination. */ exit(0); } } int main(int argc, char **argv) { /* Initialize GLUT state - glut will take any command line arguments that pertain to it or X Windows - look at its documentation at http://reality.sgi.com/mjk/spec3/spec3.html */ glutInit(&argc, argv); /* Select type of Display mode: Double buffer RGBA color Alpha components supported Depth buffer */ glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_ALPHA | GLUT_DEPTH); /* get a 640 x 480 window */ glutInitWindowSize(640, 480); /* the window starts at the upper left corner of the screen */ glutInitWindowPosition(0, 0); /* Open a window */ window = glutCreateWindow("Paul rf"); /* Register the function to do all our OpenGL drawing. */ glutDisplayFunc(&DrawGLScene); /* Go fullscreen. This is as soon as possible. */ //glutFullScreen(); /* Even if there are no events, redraw our gl scene. */ glutIdleFunc(&DrawGLScene); /* Register the function called when our window is resized. */ glutReshapeFunc(&ReSizeGLScene); /* Register the function called when the keyboard is pressed. */ glutKeyboardFunc(&keyPressed); /* Initialize our window. */ InitGL(640, 480); /* Start Event Processing Engine */ glutMainLoop(); return 1; }