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 to Create a Pop-Up Message (or Something Similar) When Blender Is Frozen
I have created a Blender addon that requires a lot of computational power and takes some time to process. It is an automatic camera tracking addon. The only thing the user needs to do is enter their ...
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solved cameras track points are selectable in viewport?
I have solved camera and when I want to select something like empties belonging to the camera,
How do I select some of them together in 3d viewport??
I can select only one by one.
And also If Is it ...
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Camera with "track to" empty goes insanely fast
It's hard to see with the GIF but the camera stutter.
I've tried to apply the scale on both empty and camera, nothing changed...
However if you have more ideas on how to track the camera in a smooth ...
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Tracking - hide empty track when tracking fails
I'm using motion tracking in blender to attach objects on a video file using Link Empty to Track.
I'd like to understand if there's an automatic way to hide objects when a linked track stops to track ...
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Motion Tracking Workspace problems
Scene Setup
Set as Background
Sets the clip currently being edited as the camera background for all visible 3D Views. If there is no visible 3D Views or the Clip Editor is open in full screen, nothing ...
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How to animate moving eyes and speaking mouth onto puppets in a stop-motion video?
I’m very new to Blender, and I need to animate moving eyes and speaking mouth onto a stop-motion animation I’m making with puppets. I will shoot the video and then upload it into Blender to add these ...
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Set active clip in Motion Tracking workspace via Python
Is it possible to set the active clip in the Motion Tracking workspace?
clip = bpy.data.movieclips.load(filepath)
#somehow set the clip as the active
By active I ...
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My motion tracking scene is offset from the footage
I have a scene motion tracked with a solve error of 0.41 pixels, and it seems to move correctly, however, the entire scene is weirdly offset from the actual footage, as if the camera's origin is the ...
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I am stuck with face tracking in Blender
Not new to Blender but first time attempting to track a face. The footage is a person looking down at first and looking up, shot with a tripod. I have done everything I was advised to do, and I am ...
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Is it possible to make multiple camera solvers for motion tracking in one project?
I have a video with many switching angles on one object. Sometimes the object should be outside the camera view. I need to have at least 5 camera trackings to properly insert this object into the ...
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Live tracking of an object in 3D space
I'm not new but I'm already a beginner.
I'm posting a new question because I was wondering if there is a method to live-track the position of an object in tridimensional space.
I would like to use an ...
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2D stabilisation with images of different size
A quick and easy one.
I've several pictures of my face that I would like to transform into a TimeLaps video.
I'm importing them into Movie Clip, then using a 2D stabilization to correct the rotation ...
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Motion tracking. Long shot
I’ve got a footage 1 minute long filmed from a car. The scenery changes a lot in the side window. So there’s no way I could set common markers. They would go off the screen 5-10 times.
What’s the best ...
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I am having a very hard time with compositing
I have tracked drone footage, and imported a building model to put in my scene. In viewport shading, everything looks as it should. in rendered view, the movie clip is not taking up the full camera ...
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my camera track stops tracking before reaching the last frame of my video
I am trying to track found footage of a drone shot, the camera movement is very smooth. My pattern size is 40, my search size is 100. The track stops tracking around 3/4 of the way through the clip, ...
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Perspective Camera Tracking markers
When using perspective or affine, should I make the borders of the tracking marker match the shape of the thing being tracked, or leave it as it's default box shape?
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Track empties to rigged+animated characted
So I have this rigged character that does a little dance. I need all the empties to keep their current positions on the mesh for something later. Essentially when the character moves, the empties ...
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Struggling to track a circling drone shot
I took that shot from pexels to track and integrate an object inside of it
(cylindric structure in the middle)
My solve error being a bit below 4, I tried doing a camera motion solve.
I keep getting ...
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Plane Track Does Not Stay in Place
newbie here.
I'm trying to follow a tutorial but I am unable to make the tracker stay in one place. Once I play the video the tracker moves
Need help to understand on how I can fix this.
There are ...
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No matter what, Motion tracking WILL NOT align with scene
I'm absolutely ripping my hair out at this. Followed 9 different tutorials, and used more than a dozen different clips I've gone out and recorded, to no avail. I've always managed to get a solve error ...
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How to modify keyframe A and B via Python
I'm stuck trying to access the Keyframe A and B options through Blender's Python API. To give you a better idea, here's a screenshot of the options I'm talking about::
I've tried a few things to get ...
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How can I get acces to the solve error value in the clip editor, and the projection error from trackers in python?
How can I access the solve error value generated from the "Solve Camera Motion" in Blender using a Python script? Additionally, how do I retrieve the projection error for each tracker ...
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Tracked footage renders but not the 3D object [duplicate]
My 3d object doesn't render. Only the tracked footage appears when I try to render the scene. What could be the problem ?
Here's the .blend file.
https://drive.google.com/file/d/194iS-WFTLlGNtrLZ-...
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How can I add a Vertex to the end of a trim curve node in geometry nodes to track a camera off?
I'm using geometry nodes to set up a dripping ink effect using trim curve and I'd like to add a Vertex to the end of the trim curve to track a camera off.
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How to Align the Origin tracking marker to the World Origin as well as XY axes?
I have a video of my monitor with Blender open and I'm tracking the points in the Blender application running inside the monitor I have recorded. I'm planning to have an object animated inside the ...
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How to move the Marker's center origin point in Movie Clip Editor?
I have a video with blurry lines in them, so I had to manually fine-adjust a lot of the markers per frame. I've already positioned the corners of a set of markers that use the Affine Motion Model and ...
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Camera tracking footage rendering as black
I am trying to learn camera tracking to include 3D assets to filmed footage. When I activate rendered view mode everything is black other than the 3d objects. I also can't seem to make the ground ...
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Why does bpy.ops.clip.detect_features() not get executed on specific frame?
I'm attempting to navigate to a specific frame in the Movie Clip Editor in order to subsequently detect features on the new frame. However, I'm encountering issues with the execution order of my ...
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Movie Clip tracking & setting floor not working properly despite very good solve error
I'm trying to track this video clip where I actually got a good solve error of below 0.5 pixels.
But somehow when I setup the track scene with the Setup Tracking Scene button, I am unable to set the ...
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How to track bones from one armature to another armature
I have this flexible part of this gearbox assembly and I need it to follow the motion of these bolts, specific bones are highlighted and the bolts are in red.. The bolts bounce up and down and sway ...
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When/where to place different types of tracking markers?
More of a general question that I never seem to find an answer to:
When and where are the correct decisions to place different types of tracking markers? When do I know to place Perspective, location, ...
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How do attach objects to a moving mesh seq to all the frames?
I am working with a mesh sequence imported into Blender using the stop motion OBJ plugin. I'm encountering an issue where I can successfully join an object to the first frame of the mesh sequence, but ...
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Tracking markers not matching in camera view
Camera tracking has been rather tricky. I tracked this relatively easy clip with a just a slight pan down. and got a solve error of .44. It just falls apart when i try to setup the scene. The tracking ...
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Camera tracking problem - focal length seems wrong
I've tracked some footage with a view to replacing the background from the bottom of the fence panels up (this is a test shot for now). I shot the footage on a phone (13mm focal length) which Blender ...
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Why is my Grease Pencil object rotating along this path?
I describe the problem in this video
But the basic summary is this:
I'm trying to get a camera and a grease pencil object to travel along the same path, with the camera offset slightly so that it can ...
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Blender Animal Tracking
I'm very new to Blender and this is my second week using it. I'm currently working on a project where I want to track a lion's head in a video and add plants with physics to its head. I have a video ...
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Using the rotation from motion tracked point(s) in a Rotate compositor node?
I have motion tracked an object in a video clip, and in the compositor using an Image input node, a Tracker node X & Y feeding into a Translate node's X & Y to have the image superimposed on ...
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How do I do VFX using a tripod?
I'm fairly new to VFX and I've been trying to do a shot where the camera stays completely still on a tripod.
It is a video, not a single image, but the camera itself doesn't move.
How would I go about ...
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Single view still image reconstruction from camera tracks
I'm working on a precise 3D reconstruction of a scene from a sparse set of pictures, meaning that my attempts at photogrammetry using available documents has failed so far due to the limited amount of ...
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Export XY motion Tracking data
Pretty new to blender, and A bit lost.
I am creating a Sand art table similar to this one. It uses a homebrewed Arduino powered CNC to control 2 servo motors, moving a magnet around, which in turn ...
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Shifting a camera tracks frame range
I'm having an issue with getting the camera track to work properly once the frame ranges have been shifted.
The situation is, I have been given a shot to track (for the example lets say its 400 frames)...
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Shifting the frame range of a Camera track
I'm having a issue with getting the camera track to work properly once the frame ranges have been shifted.
The situation is, I have been given a shot to track (for the example lets say its 400 frames)...
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Offsetting existing camera trackers on timeline
I have footage that has been extended at the start, so it starts a few frames earlier. I'd like to extend my existing tracks so that I only have to track the first few frames. But when I set the new ...
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How to make 3D airplane-like camera movements - especially with regard to "rolling" of the camera?
Right now I'm doing this as follows:
There is a path the camera position is constrained to. The camera is being moved along that path.
The camera has got a TrackTo constraint and is always targeted ...
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Animate sun beams compositing node based on camera position
I'm interested in animating the values of the Sun Beams compositing node based on the camera position.
I've had success in the past following this tutorial
https://www.youtube.com/watch?v=6cOOEJ2p4ZM
...
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Camera Tracking - Fast camera move
Fairly new to camera tracking. I did a camera move that goes from the ceiling to the floor and I'm not able to get a camera solve to work. Camera trackers only last so long as when the camera moves ...
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How long does the RAM continue to hold Prefetching for whilst motion tracking?
I looked through similar questions but can't really find anything on it.
When you prefetch a video in motion tracking, it stores it on the RAM for quick access, that bit I get.
My question is, how ...
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Problem with flatbed cameras
2]2I am new to blender, I am currently doing a camera tracking on a bezier. But the problem is that when I choose the target for the camera constraint it becomes flat. And the view does not render ...
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Motion tracking portrait video
I need a little help, when I upload a portrait video in blender it flips into landscape, how do I make it into portrait
It automatically flip my portrait video into landscape. Really need help
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3D camera orientation - Setting floor issue
I 3D tracked a scene, with o.48px error. The issue is that the orientation is almost correct, as you can see in the screenshot I attached, before I try to set the floor, which throws it off completely....
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