Describes the up, down, left, and right angles of the field of view.

float | UpTan ( ) Tangent of the angle between the viewing vector and top edge of the FOV. |

float | DownTan ( ) Tangent of the angle between the viewing vector and bottom edge of the FOV. |

float | LeftTan ( ) Tangent of the angle between the viewing vector and left edge of the FOV. |

float | RightTan ( ) Tangent of the angle between the viewing vector and right edge of the FOV. |

Field Of View (FOV) tangent of the angle units. **Note: **

For a standard 90 degree vertical FOV, we would have: { UpTan = tan(90 degrees / 2), DownTan = tan(90 degrees / 2) }.

float ovrFovPort::UpTan ( )

Tangent of the angle between the viewing vector and top edge of the FOV.

float ovrFovPort::DownTan ( )

Tangent of the angle between the viewing vector and bottom edge of the FOV.

float ovrFovPort::LeftTan ( )

Tangent of the angle between the viewing vector and left edge of the FOV.

float ovrFovPort::RightTan ( )

Tangent of the angle between the viewing vector and right edge of the FOV.

The documentation for this struct was generated from the following file: Include/OVR_CAPI.h