Motion tracking

ronaldd · **Posted:** Mon Feb 13, 2012 7:04 pm

Hi all, I be back with another question. Does anyone know of a tut that describe motion tracking. How it works, and set-up. I seen a couple video's on people using it, but haven't seen anything on how to use it. :?:

b.t.w. I'm using Blender 2.61.

Thanks

Profnull · **Posted:** Mon Feb 13, 2012 10:08 pm

If you mean motion capture where you get motion from real people moving around, you should look at this posting:
http://blenderunderground.com/forums/viewtopic.php?f=15&t=6495.
This looks to be the cheapest way to do actual motion capture.
Otherwise, you can get free already made motion files in the BVH format and import them into Blender or you might try exporting them from another program that does animation as BVH files.

There is also Photogrammetry which would allow you to track an image in a movie and add 3D animation over it, if that is what you mean. See here:
http://blenderunderground.com/forums/viewtopic.php?f=12&t=6486
Hope one of these is the one you want.

ronaldd · **Posted:** Tue Feb 14, 2012 4:39 pm

Nope Profnull, it is motion tracking. An I did find information about it. It's at[url]http://wiki.blender.org/index.php/Doc:2.6/Manual/Motion_Tracking . I was reading other post, which I don't remember which post, but I able to find the site. Oh wait, it was looking at ocean sim. that I found it.

But anyhow, motion capture is another thing I'm interested in, too. I do have two zip files I downloaded. One is a KinectToOsc.zip, and the other a Bloop.zip. Suppose to work with blender. How I need to get is a Kinect sensor, I've seen them for as low as $50 at "Game Stop" for a used one. I just have to get one.
But I'm going to check out the link you have. An look in to it.

Thanks Profnull[/url]

Gan · **Joined:** Sat Mar 26, 2011 9:27 pm **Posts:** 98

Kinects look so cool. I'd love to be able to capture a HI-def video in 3D then edit it in Blender to add awesome stuff.

Profnull · **Posted:** Wed Feb 15, 2012 1:52 am

Post if you get a kinect and have a go with it - I 'd really like to know how well it all works.
I can't get one myself at the moment but I might be going in this direction around the end of the year.
It would be nea if you could connect it to the BGE somehow too . . . . .

ronaldd · **Posted:** Fri Feb 17, 2012 6:41 pm

This site I put in here has the software you can download (FREE) to hook it up to Blender. And I think {cause I'm never sure about anything :roll:

that it can be used with the game engine. So, he be thee site http://www.rpdesigner.com.br/artigos/noticias/mocap-e-kinect-no-blender-3d/

All that's needed is the Kinect.

bigboss97 · **Joined:** Sun Jan 30, 2011 5:43 pm **Posts:** 86

ronaldd wrote:

Nope Profnull, it is motion tracking. An I did find information about it. It's at[url]http://wiki.blender.org/index.php/Doc:2.6/Manual/Motion_Tracking .

I assume you are talking about camera and object tracking.
http://cgcookie.com/blender/2011/12/07/ ... to-branch/
Click on the 1,2,3 at the bottom of that page you will see tutorial for camera tracking too.

Object tracking is not in Blender yet. You need to get it from Tomato branch.

ronaldd · **Posted:** Thu Apr 12, 2012 6:19 pm

The Blender Guru has a tut on motion tracking that he did not to long ago. There's also info at BlenderWiki, it's http://wiki.blender.org/index.php/Doc:2 ... n_Tracking . So it is tracking, I'm just holding off on buying the Kinect, fer now.

dan_hin · **Posted:** Thu Apr 19, 2012 2:37 pm

I've used 3D tracking in a few jobs now (not using Blender, but that's beside the point, the theory is the same), and it can be a complicated finicky trick to get right. Your main goal with a 3D track is to produce an acceptable 3D camera to match an existing real world shot.

As long as you have enough parallax in the shot, and enough detail to track then solving the shot using the compositor for image prep should be fine.

Hopefully you're not trying to track poorly-lit DV footage on a tripod!

Dan

bigboss97 · **Joined:** Sun Jan 30, 2011 5:43 pm **Posts:** 86

ronaldd wrote:

The Blender Guru has a tut on motion tracking that he did not to long ago. There's also info at BlenderWiki, it's http://wiki.blender.org/index.php/Doc:2 ... n_Tracking . So it is tracking, I'm just holding off on buying the Kinect, fer now.

I know, this is not exactly what you want:
http://youtu.be/2kFY_xdoXzw
http://youtu.be/08PUC9NAwLY

But maybe you can combine them :-)

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Motion tracking

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