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keep distance between POI and camera pos?
Hello my problem is quite simple, and I’m thinking of coming up with a mathematical calculation to solve it but there must be a simpler way.
For simplicity’s sake I will be talking about my problem in 2D because it’s the same concept. My problem, basically, that I want to “lock” the distance between the camera and the POI. The trouble is that when I want the camera to behave like this (ignore dots):
.........stop keyframe ...........* .............\ ..............\ <---- Camera path .....POI......| ............./ ....*..-..-/ start keyframe
Which is circular around the POI, when in reality it does this:
.........stop keyframe .........../ ........../ ........./ .....POI/ ......./ ....../ start keyframe
The key difference between the two is that in the second, the distance between the POI and the camera changes. I need that to be locked.
I tried putting multiple keyframes to "help" it, but the motion was too jaggety... unless I was doing the wrong easing...
Anyways can anyone help me with this... I'm tired and desperate!! Thanks 🙂
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5 Replies
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why don’t you view from the ‘top’ view, and adjust the handles of the motion path (visually keeping the same distance)?
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Create a null where your POI should be,
make your null and POI the same coördinates,
parent the camera to the null,
and rotate the null to have a nice circular motion around an object.hope that helps
cya,
Jan
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Thanks guys they’re both good ideas
Avrohom: i’ll give it a shot, but i still have a feeling it will be a bit jerky.
Jan: I think this makes the most sense for what I’m doing but the thing is I need the camera to do other things after that, and I don’t think it’s possible to “de-parent” at a certain point. I’ll look into it definately though
Thank you!
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You can’t de-parent, but you can split your camera into two layers (ctrl+shift+d) at the point where you no longer want it to be parented. Unparent the second layer.
Simon Bonner
youtube.com/simonsaysfx
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Yes, or you could just stop using the null and then animate the camera itself. You can also use a chain of multiple nulls. Any of these ideas is easier than trying to do it mathematically, IMHO.
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