quote:Original post by Anonymous Poster

Original post by CGameProgrammer
No, they mean rotated around the Y axis, which is the vertical one.

Wrong. Again, the fov parameter for gluPerspective() is the full angle in the yz-plane (+y up, +z out of the screen), i.e., the vertical fov.

No, that is pitch - rotating around the X axis. FOV is measured as yaw. The X-axis FOV is 3/4 of the Y-axis FOV because of the 4:3 ratio of width to height.

~CGameProgrammer( );

"fovy Specifies the field of view angle, in degrees, in the y direction."

any questions? y direction is up/down NOT left/right. your fovy is 45, your aspect is 1.3333 and your fovx would be 60. read the rest of that (msdn), its made pretty clear.

and from here:
http://www.cs.hmc.edu/~fleck/iowa-lab/wide.html

"The human field of view is about 180 degrees by 120 degrees"
read the rest to find out why you shouldnt set the fov like that ,-)