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Thread: camera options + ortho/prespective

  1. #1
    Junior Member Newbie
    Join Date
    Feb 2009

    camera options + ortho/prespective

    i have 3 questions

    how to zoom in and out using a keyboard input in a 3d shape,

    and how to toggle between wireframe & solid with a keyboard input too,

    and toggle between prespective & ortho

    if anyone got samples plz post

  2. #2
    Super Moderator OpenGL Lord
    Join Date
    Dec 2003
    Grenoble - France

    Re: camera options + ortho/prespective

    homework ?

  3. #3
    Junior Member Newbie
    Join Date
    Feb 2009

    Re: camera options + ortho/prespective

    i am modeling and short on time and trying to add the keyboard inputs while modeling

  4. #4
    Senior Member Regular Contributor Rosario Leonardi's Avatar
    Join Date
    Aug 2008

    Re: camera options + ortho/prespective

    The key input is dependens from your framework you can have to catch a windows message or your framework call a callback at the key pressure. We can't help you if you don't tell us your framework.. and by the way it's totally openGL unrelated. :P
    To zoom in and out you can change the FOV of your projection matrix or move the camera.
    To switch between wireframe and solid check the glPolygonMode functions.
    To toggle between perspective and ortho... change the projection matrix. :-\
    ~ ~ I tell you, realtime 3D is made of blood, sweat and screams! ~ ~

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