link camera position and POI ?

[Sam Moulton]

not sure what you are trying to do here. You could add an expression to POI and just pickwhip to the position. This gives you some really odd movements of the camera.

If you just want to manually point the camera somewhere then turn auto orientation off.

[Patrick Collins]

I have a camera move/dolly out thing where I am moving out and down/right.. I had to set keyframes for both position and point of interest, but it seems that it has some jerks here and there, and if I move through the time line and examine the values of those two things, they are sometimes the same but other times off by .2 – .4, and I am wondering if that is what is causing the jerking.. So I thought it would be good if I could make sure both of these have the same value at all times…

Is the expression / pickwhip the best way to do this?

-patrick

[Sam Moulton]

Turn off auto orientation is the easiest

[Jacob Wessler]

Patrick,

It’s difficult to have your camera LOOK at its own position. That gets kind of confusing.

Parenting to nulls works great. This thread by Chris Smith has a TON of control:

https://forums.creativecow.net/readpost/2/878237?

You can always just parent your camera to one null and use that for position. If you rotate the null, the camera will rotate (BUT, it rotates from the POI and NOT the position of the camera. This makes for HUGE sweeping arcs).

You can fix that by using TWO nulls, one for POI and one for camera position. (Chris Smith’s solution solves this problem as well)

I guess it all depends on how much control you require.

Aharon Rabinowitz has a tutorial about this very thing. He talks about using nulls for camera positions at the end of his “Working with Null Objects” tutorial. Check it out here:

https://forums.creativecow.net/cgi-bin/new_page_wrapper.cgi?forumid=2&page=https://library.creativecow.net/articles/rabinowitz_aharon/Null_Objects/index.html

Jacob