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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32 views

Text not rendering in motion track (2.82) [duplicate]

Using Blender 2.82 and I am trying to animate text over a meme template (yes, i know there are easier ways to do this but I wanted to try it in Blender to expand my skills a little bit). I have been ...
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113 views

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 can I add geometry to a tracked shot in 2.8

I used this excellent tutorial by Ian Hubert to track my shot. https://www.youtube.com/watch?v=lY8Ol2n4o4A I got my solve down to.2065! My square geometry was present in my 3D viewport-all good. ...
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53 views

Accessing the new rotation caused by “Track To” constraint

So after searching for quite a while how to have my camera focus some specific object while the camera moves through space I found the very easy solution of the "Track To" object constraint. This ...
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15 views

how to merge and transfer files as one piece to other blender project

I want to add my robot model to the camera image with motion tracking, but I don't know how to add the model and rig files as one piece. And the robot is walking on the stage. I have to add this as an ...
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12 views

3d model from a video and animate

I've seen people auto generate models from video and make it manually, however I haven't seen someone rotoscope from video. There are AIs getting better at this, but is there something I can use/do? ...
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23 views

VFX Shot: Dolly into blue screen picture frame that reflects

Hey Blender community, First of all. You are clearly a lovely bunch. I just dove into making my Donut, as guided by Andrew’s great tutorial series, and was delighted at what I learned. I decided I ...
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2answers
89 views

Connect points of motion tracks with (smoothed) lines

I am tracking motions with blender, and adding motion trails to tracked objects. With hq slow motion footage, just attaching an empty vert with a particle effect to my track works very well. However, ...
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28 views

Cant filter tracks when solving camera tacker

Sorry, I am a noob at Blender to be honest! I got a decent track of some footage and in the solve tab of the tracking menu, in de cleanup, I want to filter tracks. I can select it, but when I want to ...
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19 views

Is it possible to select ALL trackers? Motion Tracking

How can I select all trackers across all frames? I can select all trackers on a given frame, but that doesn't cover trackers on other frames. How can I do this?
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27 views

Face motion tracking depth/rotation tracking

I recorded a video with face markers in order to track my face movemements; i can't figure out how to make my mesh follow my emptys in order to track my face angle. Any ideas ?
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438 views

Single track with bundle should be selected to define axis

I keep getting this error when I select a point and another one to set X or Y axis when tracking. I DO have my camera solved I tried a few tutorials and I don't think I'm missing any step, yet I can't ...
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41 views

Why does my render look like this in eevee?

I am trying to workout a workflow from Boujou to blender but when I use EEVEE the cubes look messed up and start jittering and going transparent. Then in Cycles everything looks alright but I would ...
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21 views

Tracking Points not aligning with footage

After i did an object tracker, and setup my tracking scene, the track is good but the point don't align with the footage. Why ?
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17 views

The movement of the empty doesn´t match the track

If i link an empty to a track, the movement doesn´t match that well. Sometimes it´s a frame further to the left, than the track, a few frames later a frame further to the right. I´m currently working ...
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18 views

Can I save camera 3d space data?

I'm wondering, If I have a camera animation, is it possible to store that 3d information so I can have the same camera movement in another scene? Basically, have the 3d camera movement in one scene ...
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1answer
57 views

Motion Tracking + MatchMoving — What am I doing wrong?

I'm trying to track the camera in this piece of footage and then also track the object on the stick (to replace the object with a 3D object and remove the pole). I am a newbie, but I think I got the ...
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41 views

is there an easy way to delete all dead tracks?

I have a tracked out video and a lot of tracks failed. Is there a button or something to delete all the dead tracking points? It's a long process to go through and find all of them and delete them.
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39 views

Is it possible to export marker location over time?

It seems that the motion tracking workspace is designed to be used to guide a 3D scene, but is it possible to export the position of one (or more) markers over time?
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1answer
244 views

Tracking: Object Solver not following tracks (with file)

I am working on a scene where I have to track the camera motion and the motion of a prop with markers. I get a good camera track and a decent enough object track (It's just as a reference to the ...
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49 views

When rendering my animation, Blender renders one frame repeatedly

This may seem like a repeat question, but I haven't found a solution on Blender 2.8 Basically my animation is a face track that i have rigged to a 3d face model. I just want to render out a short ...
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1answer
49 views

Camera Tracking - How to Reconstruct LocRotScale Marker To Empty?

I tracked a bit of video footage with a LocRotScale marker and tried to Reconstruct it as an empty but the empty doesn't have the rotating and scaling data. Now my Question: Is it possible (and when ...
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19 views

Why does rotating the camera mess up camera solve? [duplicate]

I am working on a project using camera tracking. I have a solve error of 0.3, and when I set up the tracking scene, besides the fact that the camera is rotated ...
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1answer
312 views

Can I use Blender like After Effects or Nuke for motion graphics?

I was wondering if there's a way to use Blender's 3d Space (not the compositor!) similar to After Effects without adding additional lights to do 3d motion graphics. I'd like to use the motion tracker ...
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428 views

why i cant see tracking markers in 3d viewport

I have just finished tracking and camera solving my footage. after setting up tracking scene, the markers are visible in the 3d viewport but only in the motion tracking panel. but when i switch into ...
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27 views

Equivatlent to 3dsMax’s “Expose Transform”?

Is there any possible way to get access to an object's rotation, in its parent's space, to use in a driver when it is being driven by a constraint like "Track To"? In 3dsMax I would have been able to ...
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1answer
31 views

f-curve modifier to an object that has an object contraint (track to)

I am working on a scene with a car chase and I am struggling with adding noise (rotation) to a camera that is tracked to an empty via object constraint. I have one camera that is static and tracked ...
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1answer
38 views

What is this flicker I get while tracking a camera? [duplicate]

After having my camera tracked, I decided to put in a cube for testing. But then I've noticed this strange artifact where every object kinda flickers and changes it's rotation.
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2answers
166 views

Animation nodes - How to make an object face camera yet let the object rotate around its normal?

Imagine an object, for example a Cube. Now Imagine the Camera. Imagine that, whatever the position of the camera is, you always want (a certain face of) the Cube to face the camera. This means that ...
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1answer
591 views

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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92 views

How to only get one axis to track

So I hope in the scene below it is very obvious what I am trying to do. I basically want to have cutout models always track to my empty BUT ONLY on the Z Axis. I want 1 empty to control an entire ...
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18 views

Why a mesh “rotate” just the first frame when use “Track To” constraint

Well guys, maybe if you see the gif you will know. Don't know why the mesh (selected) rotate just that frame. Here is the .blen file BLEND FILE
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1answer
31 views

Applying camera track to external clips

I have two clips: One is background footage (shaky cam) that I have tracked and solved, set up scene in Blender, etc. The other is a .exr effect sequence rendered from Houdini I would like to layer ...
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10 views

Problem with tracking [duplicate]

When i'm trying to set origin, floor, X axis and Y axis my object just flips 90 degrees:
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35 views

Advanced plane 3d tracking and axis identification

Are there any ways to make 3d tracking better? Atm I have a problem with recreating room (example below). And as it can be seen red recrangle do not quite match walls, floor or ceiling. Quite nasty ...
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29 views

Motion tracking black clip

I was using blender 2.81 I pressed something on my keyboard, and the footage turned black. The preview of what the tracker can see is still fine. I can't share the blend file because of privacy ...
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2answers
258 views

issue tracking sequence

I am new to blender, I recently started to learn VFX. I get an issue with tracking. I keep getting those 2 errors : - ...
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11 views

Camera track a Grase Pencil layer?

I’ve done a camera solve for a video background, but can’t get my grease pencil layer to distort based on the generated trackers. I can get it to move with one tracker’s position, but no idea how to ...
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33 views

How do I attach an object to an animated Fps Model?

My goal was to have a rectangular prism under an animated first person shooter arm and track its transformation without it warping. This is the arm that I am using. As you can see there is no ...
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1answer
25 views

Object Appering in preview mode but not in renders

I'm Trying to render a box on top of a video that ive tracked in the 3D viewport everything looks fine but when I render the frame using f12 the geometry is missing from the rendered image. I'm ...
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48 views

How to export a 3D Matchmoved camera?

I used the Blender Tracker to create a 3D Camera solve and need to export it to another 3D package but can't seem to figure out how. Neither FBX nor Alembic take the animated camera with it.
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23 views

Track or monitoring of 3D displacements with Blender

my question is related to the motion tracking feature in Blender. I have successfully applied this feature to track the movement of a series of markers in a column during an Earthquake, based on a ...
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1answer
114 views

How do I fix the camera roll to its parent object? Blender 2.8

I have a space ship that follows a path across my scene with a few cameras to record it. One camera I would like to use for a sort of point of view effect when the ship enters a barrel roll, however, ...
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32 views

Trouble making an Xwing aim with a crosshair and sight

I have been working on a flight simulator game for a while now, and have run across a problem I can't figure out. The spaceship is an x wing and I have all the logic with shooting and all that, but I ...
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9 views

Strange moving Texture in my Visual FX shot during following a YouTube Tutorial

When I try to recreate the effect in this Youtube Tutorial (https://www.youtube.com/watch?v=3df4Lxchf4Q&t ), then the last steps where he is connecting the track position node with the translate ...
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70 views

How to parent a mask to more than 1 Trackers?

I have done a track where are many trackers. Now I have created a mask around this object that I have tracked allready and I would like to parent the mask to all these trackers so that the location, ...
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42 views

Text Motion Tracking in Blender 2.8 [duplicate]

I'm in the movie clip editor screen and I've just successfully created a motion track. I want to add a .png image of some text and attach or parent it to the tracker so that the text follows the ...
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100 views

How to track moving camera footage in green screen

I already read this Inserting green screen footage into 3D space . But I still have some questions as I am pretty new to Blender. So I have a green screen scene and I put my camera on a slider to ...
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887 views

Camera tracking data import

Is there a way to import camera tracking data, like .json or .jsx files into Blender?
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436 views

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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