-
camera tracker issues
hi Hello,
I have been through some funny issues with Camera tracker of the foundry.
I have created a scene in my video, with a good track data ( that is what i think) , so when i create a plane in a right point, this plane fix really well in the spot.
however if i try to create another element and fix it there, it does not respect the tracking data.
Has anyone going through the same?
Many thanks
-
17 Replies
-
“however if i try to create another element and fix it there, it does not respect the tracking data.”
What do you mean by the above- that you are selecting track points and creating a Null or something else. Also, how does the newly created element not respect the track data?
Tudor “Ted” Jelescu
Senior VFX Artist -
Yes, imagine i have a bench . In this bench I create a solid ( with camera tracker view) by selecting 3 or more points from the camera tracker.
this plane basically fit properly and keep in the place properly.
However if I create any object. The object itself does not respect this data and flies around the scene.
Besides, in another video I found the track stop in certain number of frames. Why this happen? Is the frame rate affecting this ? ( I have done these videos with a Samsung galaxy camera and the frame rate is really not usual).
Many thanks!!
-
Any object ( and by this I refer to any 3d layer) that is correctly positioned in 3d space taking the plane you have created as reference should work just fine.
As far as to why the track stops- not knowing the exact details about footage and project is hard to say. Try transcoding your footage to a different format, an uncompressed one, and track again.Tudor “Ted” Jelescu
Senior VFX Artist -
Thanks ted,
When you said “correctly positioned in 3d space taking the plane you have created as reference should work just fine.” do you mean parent the new 3d object to the plane??
Usually I just turn on 3d icon and place in space and if the tracked data is good, it keeps well in space. Do you have any other way to do it?
thanks for the advice of converting. I am having loads of issues with these mp4 and codec h264. Maybe it is reason.
many thanks!
-
I used to create Nulls and parent the objects to them- in case of a plane you can parent or use the side/top/front views to position.
Tudor “Ted” Jelescu
Senior VFX Artist -
these nulls are created from camera tracker or normal nulls??
many thanks!
-
Here’s a tutorial that explains the Nulls I am talking aboout:
https://www.thefoundry.co.uk/products/cameratracker/training/#class10
Tudor “Ted” Jelescu
Senior VFX Artist -
awesome, as always thanks a lot man!
cheers
-
Hi Ted,
I have been playing around with the camera tracker. Increasing the number of track features has improved my track so much .
Now it looks like my 3d elements parented with nulls works really well.
However, I am using Element from video copilot. This plugin uses a 2d layer ,and the 3d position parameters are inside of the plugin. Parenting in a normal way does not work anymore and the 3d element does not respect that track.
any suggestion?
Many thanks
-
Create a plane/null with the track data – look at the position and rotation parameters. In the Element Effects Control panel open up the Group you have your object assigned to and position it matching the parameters in the plane/null.
Tudor “Ted” Jelescu
Senior VFX Artist
Reply to this Discussion! Login or Sign Up