can anyone help me to fix this code coz this cube wont rotate. please help this is for uni''s project. #include <GL/glut.h> GLint width = 640; GLint height = 480; GLfloat rquad; void myInit(void) { glClearColor(1.0, 1.0, 1.0, 0.0); glColor3f(0.0f, 0.0f, 0.0f); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(0.0,640.0,0.0,480.0); } void myDisplay(void) { glClear(GL_COLOR_BUFFER_BIT); glRotatef(rquad,0.0f,1.0f,0.0f); glBegin(GL_QUADS); //front glColor3f(0.0f,0.0f,1.0f); glVertex3f( 200.0f, 200.0f, 1.0f); glVertex3f( 100.0f, 200.0f, 1.0f); glVertex3f( 100.0f, 100.0f, 1.0f); glVertex3f( 200.0f, 100.0f, 1.0f); glEnd(); glBegin(GL_QUADS); //back glColor3f(0.0f,1.0f,0.0f); glVertex3f( 200.0f, 100.0f, -1.0f); glVertex3f( 100.0f, 100.0f, -1.0f); glVertex3f( 100.0f, 200.0f, -1.0f); glVertex3f( 200.0f, 200.0f, -1.0f); glEnd(); glBegin(GL_QUADS); //left glColor3f(1.0f,0.0f,0.0f); glVertex3f( 100.0f, 200.0f, 1.0f); glVertex3f( 100.0f, 200.0f, -1.0f); glVertex3f( 100.0f, 100.0f, -1.0f); glVertex3f( 100.0f, 100.0f, 1.0f); glEnd(); glBegin(GL_QUADS); //right glColor3f(1.0f,0.0f,1.0f); glVertex3f( 200.0f, 200.0f, -1.0f); glVertex3f( 200.0f, 200.0f, 1.0f); glVertex3f( 200.0f, 100.0f, 1.0f); glVertex3f( 200.0f, 100.0f, -1.0f); glEnd(); glBegin(GL_QUADS);//top glColor3f(1.0f,1.0f,0.0f); glVertex3f( 200.0f, 200.0f, -1.0f); glVertex3f( 100.0f, 200.0f, -1.0f); glVertex3f( 100.0f, 200.0f, 1.0f); glVertex3f( 200.0f, 200.0f, 1.0f); glEnd(); glBegin(GL_QUADS);//bottom glColor3f(0.0f,1.0f,1.0f); glVertex3f( 200.0f, 100.0f, 1.0f); glVertex3f( 100.0f, 100.0f, 1.0f); glVertex3f( 100.0f, 100.0f, -1.0f); glVertex3f( 200.0f, 100.0f, -1.0f); glEnd(); rquad+=0.2f; glFlush(); } void main( int argc, char **argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_SINGLE| GLUT_RGB); glutInitWindowSize(width,height); glutInitWindowPosition(100,100); glutCreateWindow("My OpenGL Program"); glutDisplayFunc(myDisplay); myInit(); glutMainLoop(); }

use glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); insted of glClear(GL_COLOR_BUFFER_BIT); and try increasing angle a bit more (since rotations are in degrees 0.2 is not much. try rquad+=2.0f You can also draw all quads in one glBegin/glEnd.

You should never let your fears become the boundaries of your dreams.

i did try that b4 but the cube still refuses to rotate. it just shows the front portion of it n wont rotate. btw..thanx for the info. i'm using win32 console application while the tutorials in this nehe's webpage is in win32 application. does it have any effects on the cubes?

[edited by - harsher on October 14, 2002 5:20:07 AM]

/*
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
*/
This is where u made the mistake...., u SIMPLY forgot to set the matrix mode back to GL_MODELVIEW;

add these lines

glMatrixMode(GL_MODELVIEW);
glLoadIdentity();

to get things back in action.

btw, u r setting things up for 2D view and drawing 3D on it ! duh ! what r u actually trying to do ?

sorry, i''m new to opengl here. btw, i changed the ortho2d to ortho only..then add glutperspective or something like that.. now i can rotate it. anyone has car''s wireframe codes? i need it.