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Activity Forums Adobe After Effects Expressions Moving the camera and Point of Interest at the same time-You can do this right?

  • Moving the camera and Point of Interest at the same time-You can do this right?

    Posted by Matt Stoltz on May 11, 2005 at 4:45 am

    hey all i was just curious if u can move the camera and the point of interest at the same time so u can see your camera movement better, instead of moving them separate

    just wondering –i think there is a way -I hope

    matt

    Mark Woloschuk replied 20 years, 12 months ago 3 Members · 3 Replies
  • 3 Replies
  • Andy Stokes

    May 11, 2005 at 5:05 am

    Hi Matt,

    You can simply add a Null and parent your camera + interest to that, then move the null. Another way I like is to make a camera “rig”. Try this :-

    1)Create a null, position it at 0,0,0. Name it MASTER.
    2)Duplicate + position new null at 0,0,-1000. Name it ZOOM
    3)Position camera at 0,0,-1000 + interest at 0,0,0.
    4)Parent ZOOM to MASTER and camera to ZOOM.

    Now you can easily rotate / position MASTER and use the Z position of ZOOM to zoom in/out. Hope this helps.

    Cheers,

    Andy

  • Matt Stoltz

    May 11, 2005 at 5:30 am

    cool thanks bro –I knew it was too simple –Ive read about parenting to a null but it just didnt hit me

    oh well

    thanks again

    matt

  • Mark Woloschuk

    May 11, 2005 at 10:05 pm

    i would also point out (heh – very apt) that you can just turn off auto-orient towards point of interest or enable auto-orient along path to stamp out the damn point of interest altogether. i can’t believe i didn’t know you could do this until i imported a match move camera from boujou.

    previously i used to tie the p.o.i. postion to the camera position with this expression:

    [position[0], position[1], position[2]+X]

    where x = the difference between camera and p.o.i. z position

    which is a decidedly lame way to do it.

    mw

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