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Thread: Camera focal length

  1. 04-10-2012, 11:53 AM #1
    glnoob_andre
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    Camera focal length

    How do you find the focal length of a camera in opengl, that is from the eye to the focal point.

    Thank you.
  2. 04-10-2012, 01:24 PM #2
    Aleksandar
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    Re: Camera focal length

    focalLength = senzorSize / (2 * tan(FOV/2))

    But that is a common equation. OpenGL does not impose any restriction to that calculation.
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