• Adobe After Effects Expressions

  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 21 years, 4 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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