Rotate Camera without affecting Layer Boundaries

[Roland R. kahlenberg]

You’re right. I’m having a problem understanding you.

Please do not say rotate z-position. These are two different things. I assume that you want to animate the z-rotation of your camera – ?

It’s best to state what you see on screen before you animate anything. Is the layer full-screen? Do you or do you not want the background to be seen at the start or the end or during the animation? What do you want to achieve as the end-result of the animation. Then tell us what you are doing and what is happening.

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[Adriano Moraes]

Actually I didn´t really understand.

If you rotate de camera the layer stays put…that´s why you can see the BG. So I´m a bit puzzled.

Have you tryied parenting the layer to the cam? Or linking it´s Z rotation to the cam´s z rotation parameter?

Is it a big comp? Is the BG 3D too?

I´m sorry if I got it all wrong I´m just trying to understand.

Is that it?

Anyway.

Cheers.

ninguem.

[Paul Bertham]

you´re right. i was afraid that my kind of question will not reach the desired result in answers. i´m 36something hours awake and gladfully everything worked till now.

yes i have misspelled myself. the Z-Rotation of camera or Orientation.

The video-layer is fullscreen (720p Footage in a 720p Comp).
I want to rotate the layer inbetween tweo keyframes 180 degrees (upside down) without seeing the boundaries of my video layer when rotationg. again i cannot zoom inside the video layer because of quality loss.
Also i have to stay 720p.
Would be an easy job if i could use SD for further work.

pwhheeew. feel like a scorched steak.

[Paul Bertham]

As you can see on the left “active camera” – the background shows trough.

There is just one video layer and one camera, thats all.

on the right, in the “custom view”, camera does exactly what i want but this does not affect the active camera (comp) view

[Roland R. kahlenberg]

I don’t think this is possible. Perhaps it’s time to look at alternatives. Like start off with a bigger image. Or use lots of blur coupled with either scaling the image or moving the came closer if you have to stick to the current image size.

BTW, 35+ hours looking at that kind of stuff would do serious damage to one’s thought processes. 😉

Cheers
RoRK

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[Paul Bertham]

BTW, 35+ hours looking at that kind of stuff would do serious damage to one’s thought processes. 😉

i accomplished 95% of my work in these couple of hours. but this trouble makes me really sleepless.

as you said, it seem to be impossible without (animate) scaling/zooming the image, but in this case the rotation has to be very slow – otherwise if rotation would be just a few frames fast i could have accomplish this by simply adding blur or motion blur and no one would recognize the quality loss from zooming deep into the image.

but my major question still is: why this task will not work?
im rotating the camera not the layer itself? i don´t get it…

thanks for replying guys.
cheers,
Paul

[Roland R. kahlenberg]

It’s a 3D layer so it has to be affected by the camera movements. You can offset the camera movement using Expressions but you won’t end up with your layer being upside-down which is what you want to accomplish.

Like I said, perhaps another route is required to get the image to be upside down – a slide in from the top or some other transition effect.

There is always the possibility that someone from the COW’s AE Expression Forum may have a mind-numbing solution.

Good Luck
RoRK

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[Darby Edelen]

[Paul Bertham] “but my major question still is: why this task will not work?
im rotating the camera not the layer itself? i don´t get it…”

Rotating a camera has the exact same visual effect as rotating the world around a camera… I hope that makes sense 🙂

Darby Edelen

[Darby Edelen]

[Roland R. Kahlenberg] “There is always the possibility that someone from the COW’s AE Expression Forum may have a mind-numbing solution.”

I can think of a way to auto-magically scale the layer to keep it in frame, but you’d essentially be doing what you’ve already said you can’t… and it would be more irritating to code than keyframe by hand… so that’s out.

If you can’t scale the layer, then you need to somehow create additional image area for the camera move. If the areas around the edges of the frame are fairly uniform you might be able to get away with using the Motion Tile or Repetile effects.

You could also scale the layer up if you can get away with any blurring to hide the reduced resolution (call it a ‘stylistic choice’) while performing the turn. It shouldn’t take much and be sure you’re using motion blur for some additional obfuscation mojo.

You could also try using a combination of the above techniques so that (hopefully) none of them stand out too much: motion tile, scaling, blurring.

Darby Edelen

[Paul Bertham]

Thank you People for responding.

I´ll find a way to accomplish this task.
My mind was to short i think, because i thought practically (real world) that if i rotate a video camera in front of a person, the person itself would not rotate along with the camera.

Means, IF after effects wold do that way my image would stay in place an the rotation would only happen in the camera so everything else would happen “behind” the comps window (gray) area and i´d be fine.

anyway. thanks again for suggestions.

Cheers,
Paul