Fisheye view over 180°?

  • Hi,

    is there a way to get a fov over 180°, for example 190 or 200°,

    i got a krpano div vertical 900x600 (3:2 ratio as real fullframe cameras),
    and i simulate some real lenses,
    example : Canon 14 mm - Canon 15 mm Fisheye - Canon 8-15mm @ 12mm -
    but for Canon 8-15mm @ 10mm and 8 mm, i need to get a fov way over 180°...
    to have the circle fisheye image in the viewfinder as we can see in real life.. (small circle image in rectangle area)

    i use :
    set(view.limitfov,false);
    tween(view.fisheye, 1.0, distance(1.0, 1.25));
    and view fovtype="MFOV"
    to get the fisheye circle

    so,is fov 180°max a limitation of the player ? *confused*


    Thanks

    z

  • Ok

    the problem seems to be related only with vertical area,
    and before you think i'm stupid asking weird questions (like above) *tongue* , just look at theses captures :

    i get the fisheye circle with horizontal rectangle but not with the vertical one...(camera portrait oriented)
    i've tried to switch view mode HFOV MFOV DFOV VFOV...
    but there something else *confused*

    Thanks for advice

    z

  • Hi,

    yes, the fisheye fov is limited at the moment (to 179°)

    the reason for that limitation is that based on performance considerations - the parts of the image above 179° need a lot of elements to be calculated and drawn but only a few additional pixels are visible for that,

    but I will try to make that limitations and the zooming-limitations disable-able or setup-able in the next releases,

    e.g. here a quick try - this is the maximum fov for fisheye at the moment (179°):

    and this is the maximum fisheye-fov what would be technically possible (without additional distortion): (maybe ~200° or more or fewer)

    btw - nice lens application, seem interesting!

    best regards,
    Klaus

  • Hi Klaus,

    Thanks for your answer,

    is the 179° limitation is only in one axis ?
    since i can have my image circle fit in horizontal rectangle area,
    i barely understand why the circle cannot fit in the vertical area *confused*

    Quote

    but I will try to make that limitations and the zooming-limitations disable-able or setup-able in the next releases


    thanks,

    Quote

    btw - nice lens application, seem interesting!


    works in progress *wink*
    i will PM you a link later this week *smile*


    z

  • Hi,

    i barely understand why the circle cannot fit in the vertical area

    there is an internal kind of automatic scaling/zooming in this case that fisheye=1.0 and fov=180 results in a full vertical 180 degree fisheye view - that's that what I mean with the 'zooming-limitations' - I will try to make them customizable,

    best regards,
    Klaus

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