Questions tagged [bones]

Bones are the individual sections of an armature that are used to deform the mesh. Bones act like other objects (they have properties and can have constraints) but are invisible in the render.

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16 views

How to decide in which direction the bone deforms the mesh?

I have this rigged mesh. The thigh is deformed as I expected: Just for experiment, I paint some weight of thigh bone on waist: But why does it deform like this? The thigh bone moves forwards, while ...
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18 views

Changes on the object's scale does not affect rendered results

I wanted to apply one animation to multiple character meshes. Since several meshes have extreme scales, I calculated proper ratios for such meshes and applied before it gets rendered. However, the ...
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Any way to select all linked bones DOWN (or UP) the chain? Or select shortest path of bones between two bones?

EDIT: I realize now that these shortcuts actually work in EDIT mode, but I want to know about POSE mode. I'm trying to find shortcuts to make selecting bones in pose mode faster. Sometimes I want to ...
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Duplicate bones via python api on Blender 2.9x

I'm trying to duplicate some bones but for some reason it's not working at all, there's no error on runtime, it simply won't duplicate the selected bones. Do you have any idea why it's happening? <...
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How do i make this minecraft eyebrow with bendy bones?

I want to make a rectangle eyebrow for my character with specific controls, but I'm new to bendy bones and cant figure it out. I want it to be a rectangle with 2 bones on each side that move each side ...
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Rigid body with an armature on a complex model

I am trying to make a human character which would behave like a rigid body, ie. fall down to the ground and deform. I tried to follow this process which involves creating empties and parenting them to ...
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1answer
26 views

Armature bone rotated 180

In edit mode, I assign my figure's right thigh piece (selected in first picture) to it's respective vertex group that goes by the same name as the thigh bone. Once I assign, the thigh rotates 180 ...
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36 views

How to rotate bones and keep animation?

This problem is a little bit wonky on the computer's side but I want to see if I can make this work. Basically, I need to rotate every bone on this character 90 degrees on the x-axis for it to be ...
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1answer
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How do you see what vertex groups are assigned to a bone?

I'm working with Rigify and parenting with automatic weights. This is generally quite good, but never perfect and needs some fine tuning. What I would like is to know what vertex groups are assigned ...
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Rigify Eye Bones disappearing and interacting strangely with mesh

I'm working on an animated model for a Uni project, making do with a basic Rigify armature for posing and a walk cycle. Everything else in the rig is working okay, but the eyes are a problem. The main ...
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Different parent rig error

When I click on "generate rig" I get an error that says: CONFLICT: bone ORG-brow.B.L owned by rig ORG-face.001 has different parent rig from ORG-nose, Incorrect armature for type '...
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Feet not moving with rest of rig

I can't get the feet to move with the rig when I move it in pose mode using the main torso bone, or pelvis, ect that moves the whole rig at once. I know this is a very basic problem but I've tried to ...
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Posing in Grease Pencil is deforming it wrong, and I don;'t know why

When I try to pose the bones it deforms the object wrong, I think the weight painting is fine, and believe it is just some simple box that I didn't check or something like that. I tried fiddling with ...
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Issues with copy rotation bone constraints

I am running into an issue and was hoping someone could help! In photo 1 you see an armature I am working on of a wing. In photo 2 the wing is spread, and in photo 3 it shows one of the other feathers ...
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Reassigning Automatic weights on single bone not working properly

I'm new to blender and I'm trying to make my character move properly let me explain my problem image by image:- let's say this is the default armature assigned weight when making parent now let's ...
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Rotating arms in Rigify

Lots of tutorials on YT show you how to add a bones to a character in just a few moments. Usually using the automatic Rigify addon. None, however, mentions that its great disadvantage is the inability ...
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How do I fix this bad bending in my Minecraft arm?

I am making a Minecraft character following BorncCG's tutorial, and this is my result for the arms movement: As you can see, the outside of the arm bends nicely, but the inside has this ugly crease. ...
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Graph Editor - Moving keyframes in relative to the main coordinate axis, not to their own origin

I'm in the process of creating a walking animation. I would like to raise the hands of the characters, keeping their existing movement. Manipulating the torso works, but on the hands it is more ...
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What determines the Bone location, scale, rotation?

i am trying to understand what blender uses to determine the position, scale and rotation of the visually rendered bones. Referring to those: I am fairly certain it uses the IBM of the bone but would ...
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23 views

how do i get this object to follow a specific bone?

I am trying to get this model to follow a specific bone on the character's hand (the "weapon" bone) and it becomes really big when I give it an object constraint. how do I fix this? I plan ...
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How to write a script that selects bone constraints and fill in the blanks [duplicate]

I am using Blender2.78 and have zero coding knowledge. I'd like to run a script that adds bone constraints 'Copy Location' and 'Copy Rotation' in each bone in my armature and fills in the target slot ...
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1answer
19 views

Blender Bone deforming mesh when rotated

I'm new on Blender and i wanted to make a 3D model and animate it, but when i put the armature and linked it to the model, and then tried to move the head in pose mode, it makes this weird thing and ...
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My Model's Forearm Twists Too Much

So, my first model is rigged using rigify, so I am not an expert and have been coming here for answers to a few questions regarding some problems the model has and the best way to deal with them. my ...
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1answer
28 views

Fixing my model's elbow bending inward

So, I am using rigify for my humanoid model and I notice that when I move my arm by the hand, the elbow will generally bend in towards the torso, instead of out. So it looks like this: But I'd expect ...
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13 views

Can't paint weight for specific bone

I'm new to this whole thing, and I'm running into a problem where I'm trying to paint weights, and it's going fine, except for one bone that only lets me paint the opposite half of the model I'm ...
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17 views

Use Python script to programmatically animate the pose bones of Rigify's Base Human Rig

I am using MediaPipe and OpenCV to capture the pose of a person and want to animate the Base Human rig offered by Rigify add-on according to the captured pose in Blender. First of all, I wrote an ...
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1answer
16 views

How do you separate bones and name them?

I am working on a tutorial about low-poly modeling, but I am having difficulty in separating the bones and naming them individually. How do I do that? Here is the tutorial I am currently working on, ...
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23 views

Can you copy rest bone positions of one armature to another armature as non-rest pose

I have 2 models: A and B. Both have armatures. Model A has straight hands, model B has bent hands. I'm trying to make model A fit model B's armature, is there a way I can copy the positions of B's ...
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2answers
36 views

Edit bones transformations with no context use

How to edit bones transformations while staying in blender "data" approach. (no use of context) getting this error : AttributeError: bpy_struct: attribute "matrix_local" from "...
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1answer
31 views

Why are my automatic weights not working? [duplicate]

I downloaded this Sonic the Hedgehog model on Sketchfab.com, and I'm trying to rig this model, but I keep getting the same error message. The error I'm seeing is: ...
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Merge Armatures and keep Painted Weights

I need to merge 3 armatures into 1 and keep the drawn weights the same. The armatures are literally the same and 1 should be left. How do I do that. Please help!
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2answers
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Why do only the eyes on my character armature export incorrectly on FBX?

Basically, my character only has two meshes, the body and the eyes. I made sure that the bones are correctly named. Both eyes are named EyeMesh_L and EyeMesh_R. I also made sure to apply all the ...
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Eyeball weight paint/armature issue

I have some bones I made for my eyes, used automatic weights, and it worked great until I joined it with my main armature. Now when I move my eyes, the mesh deforms in odd ways. I checked the weight ...
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How to add a bone with selected object's rotation, location and dimensions/length?

Currently I am able to spawn a new bone and place it at a selected object's location and to match thee selected object's length but how does one transfer the selected object's rotation over to the ...
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36 views

How do I animate a rigid body with an animation?

I am trying to do an animation. I have an animated fish that bends its body for a few seconds and then flopping rigorously (like real fish when it is out of the water.) I want to make the fish fall ...
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1answer
68 views

How do I convert a rig back into a metarig?

I deleted the metarig a while back, and can no longer recover it. If this is not possible, is there a way to teleport the bones of a new metarig to the bones of the rig (last layer only)?
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1answer
28 views

I'm rigging this low poly model and every time I rotate the leg it starts to warp and shrink

I'm still new to blender and I've attached the bones via vertex points, haven't done any weight painting, any help would be appreciated. Also any guides for this sort of thing would be great, I've ...
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1answer
37 views

How do I animate my model's mouth?

I am trying to do a mouth animation here. I want to add mouth bones to my model so it can speak/talk/show facial expressions. My model: -comes with a .pmx/MMD armature with no mouth bones. -head mesh ...
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1answer
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How to fix very messed up bones in the pose position state in pose mode?

My rig is correct in edit mode and in the rest position state in pose mode. I applied all transformations (alt-g/r/s) to every bone in pose mode, but nothing changed. I looked in many forums for ...
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How would I go about assigning a keyframe to my selected bone? (in python)

How would I retrieve the "selected_bone" in pose mode and add a keyframe to my current timeline position using python? I'm struggling to find the correct naming for "selected bone"
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How can I disable the rest position programmatically?

I am currently trying to write a custom importer for the model format used in Ocarina of Time 3D, but I've reached a bottleneck in regards to how Blender stores models internally. In OoT3D, models are ...
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Rigging a folding ladder that respect the floor

Im triying to rig a folding stair object and I want the opening movement of it to not cross the floor, or at least the control bone, wich is the one below that controls the movement of the entire rig. ...
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23 views

Rigify's "Generate Rig" button just copies the rig

I use Blender for a few months and till now everything went fine. The last time I open Blender I got this message: Ever since that every time I try to do generate rig, the bones just duplicate ...
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30 views

Problem with rigging an arm of a character

I'm trying to rig an entire arm of a character but am unable to for some reason. I started off by rigging the hand and then, tried to connect the bones of the hand to the rest of the arm but the arm ...
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1answer
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Some parts of my Rig dont seem to affect my mesh

I just finished generating the rig and now doesnt seem to parent correctly to my mesh. Some parts work just fine but the green part doesnt affect it at all. Does anyone know how I can fix that?
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How can I replace a model that has an armature with another nearly identical object?

I have an armature that is not subdivide or solidify-friendly (the faces have some inconsistencies) so i would like to import the parts of the model (sandals, legs, jacket etc.) and import them as ...
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what is this bone for?

Some pre-made rigs (in this case from make human) split tibia (main bone in lower-leg) into two. Beyond animating a fracture (which doesn't seem like a very common use-case) I struggle to find uses ...
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1answer
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Need help with rigging. {[Bone Constraint]

I need some expert guidance on this. In my current rig(Image below), I have added a "Child of" Bone Constraint to the "Props" bone(Yellow cube). It is link to "Arm2" bone(...
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Trying to get an animated model into Tabletop Sim. When exporting from Blender to Unity I break the model

First, let me get this out of the way I did not design the model. The credit for that goes to MZ4250 I'll link their information down below (go check it out, there's a lot of excellent models). For ...
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Any way to bake physical rigid body simulation to armature?

I was wondering if there's a quick and non-tedious way to bake physics simulations to keyframes and then to armature. I already know how to bake to keyframes but making bones is a very difficult task ...

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