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Questions tagged [motion-capture]

Motion capture (Mo-cap for short) is the process of recording the movement of objects or people.

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Improve speed of creating keyframes

See edit below. We are looking to visualize scientific data in Blender as animation tracks. The data on every frame is important, including even small fluctuations, so interpolating between keyframes ...
Rob's user avatar
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1 answer
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Is facial mocap possible in Blender?

I'm attempting facial mocap using a custom-recorded FBX export with a model that has 52 pre-made shape keys: The results are less than desirable: It also appears the meshes' shape key are not ...
BlenderGuy's user avatar
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Failed to solve motion; most likely there are no good keyframes error

I'm getting this error that doesn't let me continue with the cleaning process, i've already searched and everyone says about having less than 8 points, but i'm just starting the cleaning process i ...
Myshash's user avatar
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Tracking mask is not working with Blender's compositor

I have tracked an object in Blender with a marker in some footage, then created a mask for that object and parented the mask to the marker. This works great in the Movie Clip Editor: the marker ...
ede's user avatar
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Remove or offset Time of Day code from Motive FBX Export

I have a number of mocap files from Motive Optitrack. They were exported with Time of Day timecode. When I import them into Blender, the animation data is out of range of the timeline. Is there a way ...
Justin S's user avatar
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Is it possible to restrict the movement of 3D objects within a box in Blender?

I have 33 sphere objects positioned according to data from a txt file using Python scripting, forming a humanoid figure. However, the figure tends to move out of the camera frame or may have spheres ...
MAYDAE's user avatar
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Parent mask to plane track using clip with vertical aspect ratio

Using Blender 4.0 (and also the beta 4.1), I can make four tracks on a clip, make a plane track from those tracks, and then make a mask parented to that plane track which deforms exactly alongside the ...
rich strange's user avatar
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Rigged mesh intersecting and overlapping during posing process

I hope you're all having a great day! I'm still very much a beginner when it comes to using Blender, and so far, I've just been playing around with it. I have a question about animating rigging. Here'...
alexmic8's user avatar
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retarget_bvh addon actions working using GUI but not using script

I want to use the diffeomorphic BVH retargeter Blender addon to animate Makehuman Characters. Using the buttons in the Blender GUI to perform the actions I want works perfectly fine, but using the ...
Jonas's user avatar
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Plane tracker in viewport

I have tried to place a phone in the hand with object tracker and it just doesnt line up when rotating etc, if i use the plane tracker the plane track is perfect, but i cant find any option to export ...
Andy's user avatar
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How do I attach object onto a body that is attached to a rig?

I'm new to Blender doing a quick animation and some parts of the model not following the rest of the mesh. I don't know what I did wrong or was it because I was using a model I found online. Is there ...
Quiet Yern's user avatar
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Unable to solve rotating motion of object in Movie Clip Editor

I have been trying to solve the rotating motion of an object (see image. i.e. a lipstick) in the Blender Movie Clip Editor. I 3D printed a lipstick-Ersatz with tracking points to facilitate the ...
Roderick's user avatar
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How to improve solve error in motion tracking with low-contrast footage?

https://drive.google.com/file/d/1z6sRF_rNefpGxr_3B1EoVM0mLPrdfLY3/view?usp=sharing ^^ image sequence in question. Blender file is almost not useful. For my first motion tracking project, I probably ...
Erik Jacobs's user avatar
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How to use .txt with 3D coords in BVH?

I have 3D coords from a hand mocap , the coords are (x,y,z), there are in a .txt list with 3 cols and each row represents a point. How can I transform them to BVH format? Any script, web, video or ...
Conspiques's user avatar
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My Blend file is huge and everything is slow, even after deleting almost everything!

My Blend was 7GB and every click took at least seconds to respond. I had several linked characters that were rigged and have 4k textures and mocap data for animations. But that was it; no particles ...
Benjamin Bass's user avatar
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when I render animation some frame looks damaged in cycle

first, my English is bad. sorry, when I render animation and play the video it seems to be goes well but in some frame(randomly change every render) chracter looks like cracked(Bunny in the middle) ...
PALA LIM's user avatar
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Mesh do not properly copy movement of the armature

I have an armature with a hierarchy of bones animated in a specific manner. The animation is obtained with use of EasyMocap and Python. My goal is to import individual meshes that resemble bones (like ...
jpalachniak's user avatar
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1 answer
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How to delete All Keyframes Not on a Marker?

Is it possible to delete any keyframe that is not on a frame with a Marker? I'm editing some mocap fbx's and I've marked each frame at which a particular action ...
Dan Donaldson's user avatar
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182 views

How to offset an animation with rotation?

I made a motion capture with multiple shoot. I used Wonder Dynamics to transfer animation to a character. With Rokoko I retargeted this to a Mixamo character. I edited some part with NLA, and now I ...
JMW's user avatar
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Importing file from Blender to Unreal Engine

I have a few characters with complex rigs that work in conjunction with wrinkle maps. I’m looking to transfer them to Unreal Engine for use with motion capture. I need the wrinkle maps and their ...
Harrison Killian's user avatar
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Why doesn't motion tracked object show in render?

I copy and pasted an object in one blender file and imported it into a motion tracked scene. However, when I click "render image" the motion tracked object (robot) does not show in the ...
Hello blender's user avatar
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Constrain elbow rotation

I have motion capture data for arm joints as 3 empties: Shoulder, Elbow and Wrist. The ...
user2248702's user avatar
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1 answer
855 views

Animation data doesnt properly transfer between armatures

When trying to copy graph editor keyframes from an animated armature and pasting them to a different un-animated armiture ive run into a problem that has absolutley stumped me. Ive created a seperate ...
Tyler's user avatar
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Calculating join angle of an armature

For a school project I need to calculate joint angle of an armature. I found some code that works with 2 bones, but I need to calculate the angle of every 2 adjacent bones (knees, elbows, back, etc). ...
Sterke Stijn's user avatar
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156 views

Use Imported FBX on Rigged character?

Recently I wanted to try out motion capture. Right now I am trying to figure out how I can apply an FBX model to a rigged character. Is there a way I can try and combine the motion file (FBX file) ...
Zack Whylinder's user avatar
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163 views

How can I use Python to automate setting bones to be driven by empties?

I have about 30 control bones of a rig that I want to animate using mocap tracker empties. I will be doing this many times for many models and each time, I need to set and calibrate the drivers for ...
Thailandian's user avatar
1 vote
1 answer
323 views

In the Drivers Editor f-curve, can I prevent keys from snapping to integer keyframes?

I am using the Drivers Editor in my motion capture pipeline. I have already recorded a trial video using facial markers, tracked the markers and converted the constraints on the empties to f-curves. ...
Thailandian's user avatar
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45 views

How do I make my object/camera solve correct? It seems blender can't figure out my cameras focal length

Here's a recording of the current (wrong) object solve. I have tried adding more markers and even manually changing each weight of each track but I can't get a solve error lower then this and when I ...
High Priest's user avatar
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1 answer
71 views

Trying to do camera motion-track, python-error in clip.py

after a long pause with motion-tracking (did this in old 2.xx-versions), i wanted to use this with my better camera and better footage on a new blender 3.3.0. The calculation works as it did before, i ...
Minihawk's user avatar
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151 views

Motion Tracked camera is far away from the origin after applying the origin / floor

When I try to use Motion Tracking, the camera is very far away from the origin of the coordinate system. It's not exactly an ideal setting for motion tracking. The tracker circled in green is the ...
Xavier's user avatar
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Script for adding mesh as depth target to empties doesn't work

I'm following this tutorial for face tracking and used a few lines of code to add the face mesh as a depth target for all the trackers which are empties. Actually, I just wrote the lines from the ...
user123511's user avatar
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311 views

facetracking: how to track markers manually which Blender does not recognize?

I am trying to track some tracking markers on a face. A part of the clip works very well but at some frames, Blender does not recognize the tracking points at all. Is there a way to track those points ...
user123511's user avatar
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1 vote
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434 views

Motion tracking 3D Markers to Mesh creates vertices but how can I use in Geometry nodes

I was only able to make e correct motion tracking by placing (real phisical) small objects on the ground and table when shooting the footage. I want to remove these in the final render and used the &...
Rene's user avatar
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900 views

Motion tracking slipping and MANY MORE ISSUES

I have been trying to learn motion tracking for 5 days and all the results I get are inconsistent. It's either I go through the solve error starts really low, I decrease maybe a trackers weight solve ...
Mahmood Mohssin's user avatar
1 vote
1 answer
387 views

Is it possible to use .trc, .trb or .cap files in blender?

I've recently recovered some mocap data files, but I do not have access to MoBu currently and was hoping to use Blender to display my data and attach to a rig to add to my portfolio. Unfortunately, I ...
AMess's user avatar
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102 views

Blender file size bloated after importing mocap data

This is not a question, just wanted to share something that I found out recently. Please do correct me if I'm wrong. So, our mocap result generated a bunch of actions, one action per bone. And actions ...
Ryazack's user avatar
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37 views

Pointing bone at the middle of 2 points using plane

I am trying to create a bone that rotates in the way a wrist would rotate when the hand is moved. I have locations of specific points on the hand, the wirst, the start of the pinky finger and the ...
Roel de jeu's user avatar
1 vote
1 answer
719 views

Mixamo doesn't give animations

I tried to install some more Mixamo animations but when I load them into blender they have no animation and are slightly transparent. As you can see there are only two keyframes because there is no ...
Mr Calamari's user avatar
1 vote
0 answers
596 views

How to apply a motion to a model?

Blenders. A newbie is here. I've been looking for how to apply a motion to a model in Blender, but it's not easy to find. I've been googling and searching on Youtube, but no luck. Here is my process: ...
Nothingness's user avatar
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322 views

How to change the location and 'angle' of an animated rig produced with Rokoko motion tracking suit?

Hello Blender community, I recorded a simple animation with a Rokoko motion tracking suit, for a character. It consists in a walk from a point A to a point B. In between the character zigzag a bit, ...
Bertrand's user avatar
1 vote
0 answers
1k views

Retargeting animation from BVH to FBX

I have an FBX file containing a rigged 3D mesh with its armature, and a BVH file containing animation data for the exact same armature (same skeleton topology and bones names). I import both files in ...
Alexis.Rolland's user avatar
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897 views

Hypothetical question regarding 2D eye rigging for unity/mocap

I just recently modeled a character with 2d Eyes. The eyes are flat planes that rest on the surface of the face via applied shrink-wrap mod. The eyes have a texture of the pupils and the pupils move ...
joce_fri's user avatar
1 vote
1 answer
491 views

How to set the origin of an armature after location keyframes have been added?

I'm trying to do an animation from mocap data. I turned the animation into an action so I could manually edit the sliding feet, intersecting meshes, etc. Every time I did this I added a new keyframe ...
conorg's user avatar
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99 views

How to transfer facial mocap from Blendartrack?

I’m loving the results I get from Blendartrack for facial mocap but the mesh is baked. I really need to get that motion to a full 3d character with the face of the person I scanned. I’ve been using ...
Lincoln Smith's user avatar
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241 views

i cant solve camera motion

I can't solve camera motion after tracking my footage. I don't know what happened, if I messed up with tracking. I don't understand some data failed to reconstruct meaning.
Nugraha Hadi Wicaksono's user avatar
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186 views

Automaticly merge multiple frames from a camera projection into one

I have tracked my camera and recreated the scene mesh on which I am projecting the frame of the image sequence. If I step some frames back the camera "sees" something different. A different ...
Phönix 64's user avatar
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1 answer
72 views

Motion tracking. How to find frames where marker is enabled/disabled (or/and not tracked yet)? Maybe via python?

During motion tracking of several markers at once, it happens that some marker is lost at some frame for some reason. Then I spend a lot of time searching on which frame this marker got lost. ...
JABA's user avatar
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77 views

Rigging Artifacts

I'm playing around with Kinect mocap, I'm completely new to rigging. To get my feet wet, I'm using the resources here. I'm trying to apply the animations from the female base model to the male one. It ...
Seed Code's user avatar
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132 views

How to make a single rotation edit in a global axis but across the entire animation?

I have a mocap animation which is wrongly placed and rotated; the root bone is located at X= -184 and so on, and is at about 30 degrees in the global Z axis in the starting frame, which is frame #2. I'...
Delano762's user avatar
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1 answer
811 views

Combining separate body and facial motion capture

Hoping someone can help with this, i have a human generator rig which has a rigify - meta human rig for both body and face. I have a FBX Mocap file for the body and a TXT and WAV file for the face ...
mae18's user avatar
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