- float vertical = max(max(left_fov.UpTan, left_fov.DownTan), max(right_fov.UpTan, right_fov.DownTan));
- fov = Geometry::atan<float>(vertical)*2.0f;
-
- float inner = max(left_fov.RightTan, right_fov.LeftTan);
- float outer = max(left_fov.LeftTan, right_fov.RightTan);
- frustum_skew = (inner-outer)/(inner+outer);