Answers.Body: <p>You will need motion tracking at a minimum if the camera is moving during the shot and you want to composite a 3d animation.  It will need to be able to do 3d motion tracking, which is the hardest to do.  I believe that Mocha (which comes with recent versions of After Effects) can handle this passably enough for a simple project.  I'm not entirely sure what you are trying to do with the animation though based on how you phrased the question.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-03-13T19:33:51.210Z
Answers.LastActivityDate: 2013-03-13T19:33:51.210Z
Answers.UserDisplayName: AJ Henderson
Answers.Body: <p>The technique you're looking for is called 3D match moving, and AE is definitely capable of pulling this off for simple/short shots, but you'll need to use it in conjunction with a 3d package like blender, maya, max, c4d, etc.  Basically, you use AE's Effect->Perspective->3d Camera Tracker to extract 3d information about your physical camera's spatial orientation, and use this data to animate a camera in your 3d package.  Render your 3D animations (with separate passes for whatever info you'll need to recomp, shadows, lights, AO, reflections, alphas, etc), and then composite them with the original footage back in After Effects.  Keep in mind, this is a VERY simplistic overview of a VERY difficult process.  For more advanced tracking, you might want to look into programs like Boujou, PFTrack, or Autodesk MatchMover.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-03-14T01:04:03.247Z
Answers.LastActivityDate: 2013-03-14T01:04:03.247Z
Answers.UserDisplayName: Jason Conrad
Answers.Body: <p>After Effects CC comes with <a href="http://tv.adobe.com/watch/learn-after-effects-cc/introduction-to-cinema-4d-lite/" rel="nofollow">Cinema 4D Lite</a>, so if you're on the Adobe cloud, you're in luck. (CC is the successor to CS6 and was released this week)</p>
  
  <p>There are many other programs that can accomplish this, (see other answers), but you'll need particular expertise in 3D and compositing (match moving) to accomplish it. There are tutorials floating around the net, but they are program specific... </p>
  
  <p>You could also build something in After Effects 3D layers, but I wouldn't recommend it unless it is really simple boxes/planes.</p>
  
  <p>If you're new to 3D, I'd suggest getting into Cinema 4D Lite as it looks like there is a lot of effort by the Maxon and Adobe teams making the match-moving and import processes really easy. </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-06-20T19:18:58.927Z
Answers.LastActivityDate: 2013-06-20T19:18:58.927Z
Answers.UserDisplayName: John
Body: <p>For a project we need 3d animations to start <em>unfolding</em> whilst a person is walking. The video camera will be moving. Using After effects, achieve such a thing?</p>
  
  <p>Also what is this called? So I can also continue my search on google.</p>
  
  <p>Thanks!</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2013-03-13T19:32:16.857Z
Comments.Text: I'm honestly not sure what you are asking here.  What do you mean that you need the animation to start unfolding?  What is unfolding?
Comments.UserDisplayName: AJ Henderson
Tags: <video><after-effects><animation>
Title: Adding 3d animations in a video
UserDisplayName: Ilya Karnaukhov
ThreadText: # Adding 3d animations in a video
  
  (Asked by: username_0 on 2013-03-13)
  
  For a project we need 3d animations to start *unfolding* whilst a person is walking. The video camera will be moving. Using After effects, achieve such a thing?
  
  Also what is this called? So I can also continue my search on google.
  
  Thanks!
  
  **Tags:** video, after-effects, animation
  
  > **Comments:**
  > **username_1**: I'm honestly not sure what you are asking here.  What do you mean that you need the animation to start unfolding?  What is unfolding?  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_1 on 2013-03-13. Score: 2 | Accepted answer
  
  You will need motion tracking at a minimum if the camera is moving during the shot and you want to composite a 3d animation. It will need to be able to do 3d motion tracking, which is the hardest to do. I believe that Mocha (which comes with recent versions of After Effects) can handle this passably enough for a simple project. I'm not entirely sure what you are trying to do with the animation though based on how you phrased the question.
  
  
  ---
  
  ### Answer by username_2 on 2013-03-14. Score: 3
  
  The technique you're looking for is called 3D match moving, and AE is definitely capable of pulling this off for simple/short shots, but you'll need to use it in conjunction with a 3d package like blender, maya, max, c4d, etc. Basically, you use AE's Effect->Perspective->3d Camera Tracker to extract 3d information about your physical camera's spatial orientation, and use this data to animate a camera in your 3d package. Render your 3D animations (with separate passes for whatever info you'll need to recomp, shadows, lights, AO, reflections, alphas, etc), and then composite them with the original footage back in After Effects. Keep in mind, this is a VERY simplistic overview of a VERY difficult process. For more advanced tracking, you might want to look into programs like Boujou, PFTrack, or Autodesk MatchMover.
  
  
  ---
  
  ### Answer by username_3 on 2013-06-20. Score: 1
  
  After Effects CC comes with [Cinema 4D Lite](http://tv.adobe.com/watch/learn-after-effects-cc/introduction-to-cinema-4d-lite/), so if you're on the Adobe cloud, you're in luck. (CC is the successor to CS6 and was released this week)
  
  There are many other programs that can accomplish this, (see other answers), but you'll need particular expertise in 3D and compositing (match moving) to accomplish it. There are tutorials floating around the net, but they are program specific...
  
  You could also build something in After Effects 3D layers, but I wouldn't recommend it unless it is really simple boxes/planes.
  
  If you're new to 3D, I'd suggest getting into Cinema 4D Lite as it looks like there is a lot of effort by the Maxon and Adobe teams making the match-moving and import processes really easy.
  
  
  ---
  
  