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I have selected few tracks on the floor (three or more) and press the Floor button. As a result I get the following message:

Three tracks with bundles are needed to orient the floor

What does it mean? What is "with bundles"? What are "bundles"?

UPDATE

Below is an example. Five tracks are selected, all of them are of same color. How can I see that some of them has no "bundles"? I was pressing "Solve Camera..." button before.

enter image description here

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  • $\begingroup$ Please explain what you mean by "on the flow". $\endgroup$ – GiantCowFilms Jun 27 '14 at 20:29
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In order to create the floor you have to solve the clip first. bundles are basically solve data for the track. Your error is probably caused by unsolved/incorrectly solved tracks.

From the wiki:

Bundles makes sense after solving the movie clip, and it works in the following way: the solved position of each track gets projected back to the movie clip and displayed as a small point. The color of the point depends on the distance between the projected coordinate and the original coordinate: if they are close enough, the point is green, otherwise it'll be red. This helps to find tracks which weren't solved nicely and need to be tweaked.

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    $\begingroup$ What is "solve the clip"? $\endgroup$ – Dims Jun 28 '14 at 20:58
  • $\begingroup$ @Dims When you solve fore camera motion. If you don't know how to do that, find a tutorial. $\endgroup$ – GiantCowFilms Jun 29 '14 at 3:07
  • $\begingroup$ @Dims Here's the documentation for motion tracking: wiki.blender.org/index.php/Doc:2.6/Manual/Motion_Tracking $\endgroup$ – cegaton Jun 29 '14 at 4:34
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    $\begingroup$ @GiantCowFilms I just didn't knew that "solving clip" is the same as "solving camera". $\endgroup$ – Dims Jun 29 '14 at 17:58
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It simply means you didn't clicked on solve button after tracking your video

enter image description here

steps to have a clean track

  1. Track points on your video
  2. Highlight all track markers or your points by pressing A and pres Ctrl + L
  3. Now click on Solve camera. Aim to get an error below 0.3 pixels, else refine you tracking.
  4. Now click on the center most point and click Set origin

enter image description here

  1. deselect the point and now select 3 points that are your floor and click on "Floor".
  2. Now first click on Set as Background and lastly click on setup Tracking Scene.

For more tips on tracking read: https://blender.stackexchange.com/a/42332

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