Questions tagged [tracking]
Questions about Blender's 3D motion or object tracking system. Object tracking is accessed via the Movie Clip Editor.
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How can I get better results when doing camera motion tracking?
Whenever I do camera tracking in Blender the reconstruction is always zooming out or not on the axis. I have a great quality camera, but the end results of the camera tracking always has the model ...
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How to rotate source video in Movie Clip Editor - Blender 2.68
After importing my footage in to the Movie Clip Editor, I find that it is not oriented the way I would like.
What is the easiest way to rotate this in Blender?
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How to determine lens undistortion values for motion tracking?
In the camera setting in motion tracking, how do I tweak the K1, K2 and K3 value properly. I was told that these values are not necessary to tweak but I do want to adjust it, just for the sake of ...
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2D stabilization of camera pan
I have a movie clip that pans from left to right. I've added a motion tracker to an element in the scene that is stationary. But when I apply stabilization the camera panning motion is lost. The ...
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Camera Tracking markers
I want to do some camera tracking. The things that I will be filming does not have a lot of detail on it, so that I will have to place some extra markers here and there. I am not sure what kind if ...
user320
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Motion Tracking. What do the graphs represent and how are they useful?
After tracking things on a video clip or image sequence, I get a graph with green, red and sometimes blue lines.
What do those lines represent, and how are they useful to get more accurate tracking ...
user1853
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What does "three tracks with bundles are needed to orient the floor" mean?
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 ...
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Motion tracking round objects
I'm kind of new to motion tracking, and I need some help. I'm trying to replace the face on some footage of a LEGO minifigure. (You can see the footage in the GIF below):
So, I added tracking markers ...
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Joining 2D tracking markers with an offset
Is there any way to join tracks with an offset (like can be done in After effects)? I'm looking for a way to create a gap less 2D track. (It will be used only for 2D stabilization)
This is an ...
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How would I attach text to a tracked point on video clip
I am using Ubuntu 15.04 and Blender 2.72b.
I've got a video clip where I want to display some annotation-like text next to some potatoes on a white table. The potatoes move a little in the video so I ...
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Tracking a shot with focal variation (zoom)
At the half of my shot (constantly moving camera) there is a focal length change. In my first tests the camera is moving forward instead of zooming into the scene. Is there a trick to automatically ...
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Remove Tracking Markers
I have some footage I am testing out the motion tracker with, and the footage looks like to this:
As you can see, I have added many tracking markers to the head of the minifigure. I have added a new ...
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How to access projected 3d tracks of the camera solver?
For further reconstruction of a shot, I'd like to access the 3d location of the projected tracks by the camera solver constraint in the 3d View for all frames via python.
While searching through the ...
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Solve error high with good track?
So I recorded some Footage in front of my school and tracked it. The tracking points themselves seem alright (I think) but I get an average solve error of around Five.
Here are my settings:
The ...
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Can blender create a topology of a face from real camera? (photogrammetry)
If you record your face on film, then use blender to create a geometry from it with its aligning topology. Is that possible? Using camera tracking? How?
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Is it possible to take a mask clip and 'connect' it to a specific point on a moving object?
I have a video clip of a car driving by from left to right. My goal is to add a decal (mask) to the car door. Right now I am painstakingly moving the mask via X and Y.
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Manually make it look like an object is going through the floor (of a real life photograph)
I have a picture of a room including the floor and I want it to look like there is, for example, a cube going through the floor. Is there a way to do this, maybe by making it go through a plane that ...
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Using a video from the Video Sequence Editor in the Movie clip editor?
So what I want to do is track a video that I have edited in NLE, but when I click on the movie icon whilst in the Motion Tracking layout, the list is blank.
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Lens specs of smartphones for camera tracking in Blender
I've been trying to track a footage taken by my Samsung Galaxy Note 8.0 (GT-n5100) tablet. It has a good 5 mp camera and I tracked the footage well. But the problem arises at the time of solving the ...
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Background image is not displaying in rendered mode
how to make background image sequence displayed in render mode in the 3D view? I made a 3D tracking and I want to see the original video as a background.
This is what i mean:
In "material mode" I ...
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Can I let a tracking marker paint a mask?
I want to do some retouching an a video shot and it would help to be able to use a marker to "paint" a mask.
By paint I mean how you paint with the grease pencil. But instead of your mouse cursor you ...
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How can I show the Search Area box on a tracking point?
This has never been an issue until just now but consulting the official documentation it appears that there should be a search box which is distinct from the pattern area.
https://docs.blender.org/...
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Can a mask stick to a shape in the motion tracker?
I have some video footage of a flat surface (for this example, let's say it's a binder or a book), and I want to digitally replace the cover of the book using a plane in Blender. So, I set up my ...
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Do failed tracking markers still contribute to the solution?
Does Blender solve the camera only for markers which are able to track the entire scene?
For example, I have a complicated shot with a huge camera movement. The camera moves forward, leaving some ...
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How do I overlay a photo of a face over a character on a video?
I downloaded an 80s cartoon intro (Jem and the Holograms; traditional cel animation) and I want to animate cutout photos of various family members' faces overtop the cartoon faces. Bonus points if I ...
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Some Data Failed to Reconstruct, Motion Tracking
I added tracks and stuff, but then when I tried to solve motion track, there was a error that said:
Some Data Failed to Reconstruct
and it also said to look into the console for details, which I ...
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Mesh reconstruction using tracking data
I searched around Blender SE, and I have seen no questions down this slant at all, so I'm going to ask it.
Blender uses all the information necessary to successfully solve a track to re-position a ...
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Match dynamic range of render to dynamic range of camera tracked footage?
Most tutorials on camera tracking tell you to change the View Transform from Filmic to Standard. In the documentation it says Standard is "Often used for non-photorealistic results or video ...
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vertices tracking: movie clip editor
Background:
I've a *.png sequence previously rendered: a moving computer
Now I wanna add the video to the monitor, so need to track the image sequence.
The *.blend file is the same one I rendered ...
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Use tracking information from video to make a 2d panorama
I am proficient in computers, but a relative noob to blender. My video is H.264 with 1080p@60. I have loaded a video in and did the whole tracking system and collected the movement data. I slowly ...
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Lens distortion algorithm in Movie Clip Editor
Which lens undistortion algorithm is used in Blender?
I want to know more about these K1, K2, K3 parameters. How do they work? How they relate to each other. Why I need K2 and K3 if K1 does the job?
...
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When should I use different tracker motion models when motion tracking?
I'm trying to get into motion tracking but don't know when to use different tracker motion models, or if it makes a difference in the outcome of the track. Could someone please explain, or link me to ...
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Is it required converting videos to an image sequence before doing motion tracking?
Some tutorials online recommend converting a video to an image sequence in Blender before using the motion tracking features. See https://www.youtube.com/watch?v=InIuTtt7W3E?t=135, which explains that ...
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My markers in the movie clip editor keep "moving" around - what gives?
I'm trying to add motion tracks to a video I've imported. Here is what I have done so far:
Open a clip in the movie clip editor.
Click "Add Marker" and Ctrl + to place a marker.
Press Alt + → to ...
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Use 3 films (front, side, top) for motion tracking?
When I use motion tracking and I have 3 films: 1 filmed from front, 1 filmed from the side and 1 filmed from top. First I track the objects in the first movie and click the solve button, which makes ...
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Is there a way to preserve unfilled areas in stabilized footage?
I've tracked a video, and the stabilization looks okay. However it's very shaky, so a lot of the video needs to be cropped off.
Is there a way to keep the pixels from previous frames to fill these ...
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Shadow catcher casts light (?) on the floor
I'm using Cycles render to render footage with camera tracking and video in the background. I had marked "Shadow Catcher" under Ray Visibility in Cycles Settings in "Rendered" viewport view (SHIFT + Z)...
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Why does my .7 solve error result in bad track?
I started with my iPhone 4 footage and managed to get a solid 0.7159 solve error (using the phone preset w/k1+k2+focal length) with just 21 markers (including my new Favorite Thing, perspective ...
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Why is tracking getting less accurate after going past cached frames?
I'm trying to track a video clip I filmed, and when I open it in Blender, I am able to cache 519 frames of the video. When I then track the markers I place in the movie, everything works fine, until ...
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Script to auto-detect features to track using Python
I am attempting to make these GUI steps into a script. When I follow this process manually, I get a tracking error under 1 and I get some great matches. This is far better than autotrack.
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Can motion tracking and Video Stabilization constrain to y axis only?
Is there a way to remove or ignore the tracking data of x or y axis? I just want to stabilize the up/down motion in a video because I'm doing a panning shot (rolling on wheels). As you can see, the ...
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Why is my footage smearing out towards the border on rendering an image?
Dumb question - tracking footage, having border smear problems...
So, just tracking some of my own footage for the first time and as I'm approaching my first test renders, I've encountered some ...
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How to see bundles and back projecting points of different colors?
According to 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 ...
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camera track - was good, but breaks after editing an object
First, I'm a newb to tracking.
That said, I tracked my scene with a .3 solve rate.
I dropped in a cube and rendered out a short animation... looked great.
I readjusted the position of my cube... ...
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What should I track for accurate rotation stabilization? Or, how can I stabilize motion timelapse?
If I'm taking still timelapse photos of a stationary subject while moving along an arc radiating out from the object, what should I mark to stabilize rotation?
To make the question more tangible, let'...
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What is causing the window coordinate vector to not project properly?
I'm trying to project a frame onto an object so it would look like a hatch is in the ground of my tracked video. Seems like the frame is a bit disproportionate.
Scale of the object is applied.
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How do I change between different images based on the rotation of the camera
This is the 3D setup in blender with the plane always facing the camera. The method I used here was animating the texuture. I want to know If there is a method for the image to automatically change ...
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Copy tracking settings to selected trackers?
It seems the Copy to selected option is not available in the Movie clip editor.
Is it possible to copy tracker settings from the active tracker to selected trackers? If so, how?
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Tracker dropdown is missing in the Tracking settings (in Movie clip editor)
In the tracker settings panel, I can choose options like pattern size and search size, but below the search size, I see: "Tracker:", with no option to choose from. Under that line, I see "Motion model:...
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Track stereo footage
I have 2 footages. One for the left eye, and one for the right eye.
Is there any way to track the cameras from these footages and get the stereo camera from it? Or get 2 separate cameras from it, but ...
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