   Changing NeHe's camera function to a gluLookAt function.
  As the title says, how do you change the way NeHe madehis camera to a gluLookAt function? Every timer I try this, it comes out wrong. :/Can some one help?~Thanks in advanced.   
  could you please post the code of the NeHe camera?thanks--nathan   ;  .............This is the NeHe section right? .................   .. ......  .....*sigh*float rotx = 360.0f - cam.view.x;float roty = 360.0f - cam.view.y;glRotatef(rotx, 1,0,0);glRotatef(roty, 0,1,0);glTranslatef(-cam.pos.x, -cam.pos.y-crouch, -cam.pos.z);Whereas the pos is define as(UP):cam.last_pos.x = cam.pos.x;cam.last_pos.z = cam.pos.z;cam.pos.x -= sinef(cam.view.y);cam.pos.z -= cosf(cam.view.y);   ;  My solution would be to replace all that code with the following line, but I'm not sure if this is right or not, I did not test this:gluLookAt( cam.pos.x, cam.pos.y + crouch, cam.pos.z,cam.pos.x, cam.pos.y + crouch, cam.pos.z + 1, /* Look in the positive Z axis */0, 1.0, 0);That would take care of translation. The other part is created by modifying the up vector, which I usually just rotate after using a LookAt, but if you want, you can calculate it out as a combination of trig functions and a lot of math.Hope this helps.   ;  Thank you. I will try this out.   