OpenGL - Change Torus color into Red instead Grey Color

M Riaz Bashir

Hi, Kindly let me know, How do I change the torus color into Red instead Grey color and what command lines are required to do the same. Thank you Here are codes:

#include #include static int spin=0;

void init(void)
{
glClearColor(0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_SMOOTH);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
}

void display(void)
{
GLfloat position[] = {0.0, 0.0, 1.5, 1.0};

glClear(GL\_COLOR\_BUFFER\_BIT | GL\_DEPTH\_BUFFER\_BIT);
glPushMatrix();
gluLookAt(0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
glPushMatrix();
glRotated((GLdouble) spin, 1.0, 0.0, 0.0);
glLightfv(GL\_LIGHT0, GL\_POSITION, position);

glTranslated(0.0, 0.0, 1.5);
glDisable(GL\_LIGHTING);

glutWireCube(0.0);
glEnable(GL\_LIGHTING);	
glPopMatrix();

glutSolidTorus(0.275, 0.85, 8, 5);
glPopMatrix();
glFlush();

}

void reshape (int w, int h)
{
glViewport(0,0, (GLsizei) w, (GLsizei) h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(40.0, (GLfloat) w / (GLfloat) h, 1.0, 20.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}

void mouse(int button, int state, int x, int y)
{
switch(button)
{
case GLUT_LEFT_BUTTON:
if(state == GLUT_DOWN)
{
glEnable(GL_LIGHTING);
spin = (spin + 30) % 360;
glutPostRedisplay();
}
break;

default:
	break;	
}

}

void keyboard(unsigned char key, int x, int y)
{
switch(key)
{
case 27:
exit(0);
break;
}
}

int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(500,500);
glutInitWindowPosition(100,100);
glutCreateWindow("My Torus with Mouse Click");
glutDisplayFunc(display);
init();
glutReshapeFunc(reshape);
glutMouseFunc(mouse);
glutKeyboardFunc(keyboard);
glutMainLoop();

return 0;

}

AmbiguousName

M Riaz Bashir wrote:

glutSolidTorus(0.275, 0.85, 8, 5);

Wild guess. Three of these four parameters represent RGB colors. For RED, you will have value 255, 0, 0. So try following line, or play with these paramaters using hit n try. glutSolidTorus(255, 0, 0, 0);

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