Camera Roatation

Hi.

Im using OpenGl(obviously) GLUT, programming in C and using visual studio 6.

Basically i have 2 objects on the screen. One is a stationary 3d dartboard and one is a 3d arrow. The arrow moves towards the dartboard using gltranslatef and eventually hits the dartboard. What i want to do is move the camera in a full circle constantly around my scene. So the camera kind of orbits my scene. Any idea how to do this? Ive looked at gluLookAt but i cant figure out which parameters i need to change, and ive tried all of them with no success. Thanks for any help

Hi,

You’re talking about tumbling the camera, and in OGL, the easiest way to do that is to just rotate the whole scene:

void display( void )
{
    glMatrixMode( GL_MODELVIEW );
    glPushMatrix(); //for whole scene
      glRotatef( frame * rotAmount, 0, 1, 0 );
    ...draw the scene here
    glPopMatrix();
}

frame is current frame and rotAmount is the number of degrees to tumble each frame.

Hope it helps,
-Rawk