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Questions tagged [bvh]

BioVision Motion Capture (BVH) is a file format for motion capture that can be imported into and exported from Blender. Use this tag for questions about importing, using, and exporting BVH files.

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Unable to reproduce armature bone rotations from .bvh import

I am trying to format the bone rotations of an armature in the way they are formatted inside of a .bvh mocap file. I thought I would be able to obtain the 3D Euler rotations as they seem to be written ...
wolfg269'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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How to send motion data into blender using python API?

I want to continuously send motion data in the blender using python API. The data itself is the same as the 'MOTION' section in .bvh format. How am I suppose to transform this data to apply it in the ...
Eddudos Kim's user avatar
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22 views

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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1 answer
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How to permanently apply control rig animation to armature?

I have an animation in Blender that was created using the Mixamo control rig over a mixamo armature. My understanding was that to export the animation you would select the armature (not the rig) and ...
DrIgnatiusCole's user avatar
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68 views

How can I make a BVH armature with no discernable rest position into a T-Pose?

I'm trying to work with some mocap data. I found this BVH and imported it. It walks great, but it has no t-pose. When I go into edit mode, the armature doesn't resemble anything at all. How can I ...
Seph Reed's user avatar
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Why is there some twist existed on my skeleton for 0 rotation?

I have generated a bvh file with manually defined skeleton. I find some degree of bone twist exists on every frame. Even when all Euler angles are set as 0, the visualization still exhibits some weird ...
shi yi's user avatar
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257 views

Blender Bvh file export

I am using Blender 3.31 to export a animation in bvh format file but the channels seem to be wrong. Here the joint only has three channels rotation X,Y,Z but I want it to be 6, namely Position X Y Z ...
HennyWen's user avatar
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1 answer
2k views

Rokoko retargeting problem

I just started using Rokoko's retarget tool and I'm having trouble pinpointing where the issue is coming from. I made an animation and exported it as BVH and it was fine. But, as soon as I retarget it ...
Avaricius'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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1 answer
864 views

How to apply BVH data to Rigify

I want to try out the rigify rig on my model, and would like to apply a BVH file to my rig. How can I do this? When I import the BVH, a separate model with the animation shows up, but the rigify rig ...
Daniel's user avatar
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put color to bvh and render [duplicate]

I imported a BVH file, but I can't find the coloring option. How do I add color to it? And what steps do I need to take if I want to get the image above? Do I just set a white background? I'm not ...
huangy's user avatar
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1 answer
213 views

bvh display multiple frames at the same time

How to display multiple frames of a BVH file at the same time?Then can I get a picture like this?
huangy's user avatar
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2 votes
0 answers
253 views

How to return name of meshes that are inside of another mesh with python?

I have a problem with some files I've received. I have two sets of models, compartment bounding files (just empty boxes that represent a space) and some geometry that will go into those spaces. Worth ...
crilly's user avatar
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139 views

Struggling parenting BVH motion capture data with existing model correctly

I'm trying to parent (with automatic weights) a mesh that I have to a rig that has been motion captured. However, the rest position (edit mode) of the rig does not match the mesh. Do I have to change ...
Mikhail Humphries's user avatar
1 vote
0 answers
386 views

How to convert 3D pose to the bvh?

I got 3d pose data from the video using an Openpose. And I want to convert that to bvh format. But I didn't understand bvh format exactly. I don't know What Motion's angle means and how to convert 3D ...
supernova817's user avatar
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2k views

Building BVH Issues/Crashing

My name is Ella, and I'm learning how to use blender. Recently, i've been having issues when trying to render my images. I use the Cycles engine, and when I render it says "Building BVH: 100%&...
ellqria's user avatar
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1 answer
181 views

Blender crashes when running trying to overlap()

After a few runs, it is quite certain that the overlap() function is causing blender to quit unexpectedly, I am not sure if the for loop is making blender to run on an infinite loop that cause that. ...
adrian li's user avatar
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141 views

Check overlap between objects, what is the "depsgraph" parameter?

Console says i need to put the "depsgraph" parameter when checking if 2 objects overlaps, what is that? since the API manual doesn't provide options what to put in. ...
adrian li's user avatar
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3 votes
1 answer
2k views

How to convert 3D pose sequences to the bvh format?

I am very new to animation and rendering softwares, so please let me know if I need to provide more information about this. I have a sequence of 3D positions of human joints (basically mocap data), ...
mauve127's user avatar
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1 answer
532 views

What does obj_now_BVHtree.overlap(obj1,obj2) return?

I am using BVHtree.overlap in a script to calculate the overlap between 2 meshes. If there is no overlap this returns None. If there is an overlap a list is returned. For example: ...
Bram's user avatar
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1 vote
0 answers
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Cycles: BVH traversal algorithm question

Trying to understand the BVH traversal/intersect portion of the code for Cycles, and had a couple questions. I am looking at the non-SSE code path in BVH_FUNCTION_FULL_NAME(BVH)() in cycles/kernel/bvh/...
Gaurav's user avatar
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3 votes
1 answer
302 views

Documentation on Cycles BVH traversal and intersection algorithm

Newbie to blender/cycles here. Wondering if there are any documents/papers which explain the algorithm used in Cycles for BVH traversal and intersection? Making sense of the code will be much easier ...
Gaurav's user avatar
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1 vote
1 answer
53 views

Do i Build Blender for every change I make in the code?

I want to see how the BVH import script in blender works. I was thinking if i could print the values of the variables at different points in the code to the console then it would help me a lot.(just ...
user695994's user avatar
0 votes
1 answer
661 views

Extracting coordinates (x y z) from a BVH file

I want to extract coordinates in x y z format from a BVH file. I read about the rotational and transational matrices used in a BVH file but cannot make any sense out of it. At last i want to make ...
user695994's user avatar
1 vote
0 answers
87 views

MakeHuman model vertex coordinates after retargetting with Mocap?

I am writing a script which takes makehuman model and bvh files aS input and create animation. i also want to get coordinates of each vertex in image space after rendering, i write this script ...
Vikram's user avatar
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2 votes
0 answers
412 views

How to speed up bvh creation (with hair particles)

I am trying to render a hair animation with 10k particles and interpolated children with hair dynamics, which results in more time spent creating the bvh for each frame than actually rendering it in ...
avatar's user avatar
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0 votes
0 answers
523 views

MakeHuman model not retargetting correctly to mocap bvh file

I am involved in a research project where I collected mocap BVH files from Kinect (converted CSV to BVH files) for yoga poses and I am making synthetic humans animation for yoga poses. I am using ...
Vikram's user avatar
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1 vote
0 answers
229 views

Is Static / Dynamic BVH still present in recent builds of 2.79?

There still is Static / Dynamic BVH dropdown in official 2.79 build: That dropdown to choose between them isn't present in recent builds of 2.79 or 2.8 anymore. Viewport resolution only seems to be ...
Mr Zak's user avatar
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3 votes
0 answers
2k views

Blender 2.8 retargeting BVH Mocap file to a rig - is this implemented in 2.8 yet?

I have installed the Mhx2 addon into Blender 2.8 and so can now import MakeHuman characters. I also have MB lab installed as an addon. However, I cannot see any way of retargeting a CMU bvh file to ...
Harry Boteler's user avatar
-1 votes
1 answer
557 views

Combining two BVH animations. One has hand data, the other has body data

I have hand pose data and body data animations that I need to stack on top of each other (with the NLA editor?). How do I combine them in a way that ignores the hand data for the body animation and ...
Ample Clarity's user avatar
1 vote
1 answer
2k views

CMU bvh animations and rigging

I am wondering if i could get some tips from the wonderful people of this group. Does anybody have any experience working with CMU Mocap animation? I am currently working with bvh files. I have a rig ...
Dominic Keeton's user avatar
4 votes
0 answers
207 views

Detecting mesh overlaps of objects inside another object

How can we detect the overlap between two objects one has been placed inside the other? I'm writing a placement algorithm and it seems regular BVH mesh overlap doesn't work for this case. Is there a ...
Mahmoud S. M. Shaqfa's user avatar
2 votes
1 answer
134 views

Getting the color of an object an empty collides with?

How would I get the color of an object that collides with an empty. In this animation node example I get it's location but I would also like the color that it collides with.
Jim Ruxton's user avatar
1 vote
0 answers
98 views

How to: 2 Bvh files, 1 model

I have a model. I would like it to have 2 different animations standing upright, and both facing forward in the animation library. How do I do that? I am using makehuman, blender 2.78, makewalk and ...
Jumpinburgerz467's user avatar