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2d tracking problem

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Bo Bri Han2d tracking problem
by on Oct 21, 2015 at 5:16:18 pm

Hi

I'm having an issue with 2d tracking. My null object stays in exactly the same place in the video, as it should, which indicates the tracking works pretty well. But the text that I attach to it (which has the null object as its parent) moves independently. I can't understand why it doesn't follow the exact same movement as the null object since it's attached to it and should move relative to it.

Any suggestions?


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Kalle KannistoRe: 2d tracking problem
by on Oct 22, 2015 at 6:42:17 am

Is the text 2D as well?


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Bo Bri HanRe: 2d tracking problem
by on Oct 22, 2015 at 7:47:58 am

I tried it with both some pixel-based graphics as well as text layers made in AE.


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Ashish GuptaRe: 2d tracking problem
by on Oct 22, 2015 at 8:53:43 am

Check the anchor point of your text layer. Also make sure that you haven't turned on the 3d switch in any of the layers.

Ashish Gupta
Motiongraphics artist and 3d generalist

aashi.29nov@gmail.com


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Bo Bri HanRe: 2d tracking problem
by on Oct 22, 2015 at 11:23:48 am

Hi

The problem is that if I don't turn on 3d on the text layer I cant light it.


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Kalle KannistoRe: 2d tracking problem
by on Oct 22, 2015 at 4:23:24 pm
Last Edited By Kalle Kannisto on Oct 22, 2015 at 4:24:22 pm

If your text layer is 3D, you either need to use 3D camera tracking (if the footage has a camera that actually moves around in 3D space) or you need to render a still image of the text with alpha channel and import it back into AE as a 2D image and then attach it to a null. Or you can precompose it together with the camera and the lights so it essentially becomes a 2D layer, and attach that precomp layer to your null.


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Bo Bri HanRe: 2d tracking problem
by on Oct 23, 2015 at 7:31:10 am

Thanks, I'll give it a go and see how it works!


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