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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Align both ends of a bone to a curve without stretching?

I'm trying to rig a series of bones that follow a curve and stay an equal distance from eachother and have strings that stretch between each segment. The thing that makes this a little complicated is ...
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how do i change the direction the fingers bend with the scale?

When I scale the fingers to bend only the pinky is bending the right direction, how do I change this?
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"child of" constraint does not rig properly

I'm new here and to all of this, so I'm following a tutorial on YouTube, and I'm stuck on one part which seems simple in the video, but I've done something wrong and can't figure it out. I have set up ...
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Bone "drags" away from mesh in pose mode rather than having identical movement, how to fix/ [closed]

https://streamable.com/rnhvgi The video shows my problem clearly. I want the bone to move 1:1 with the part of the mesh it's attached to. But instead it has a drifting effect that I dislike and makes ...
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Creating an IK rig on an armature with disconnected bones

I have a skeleton imported as FBX from a video game, and to make modifying animations easier, I want to make an IK rig for it. However, it imports with all bones disconnected from one another. I know ...
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Animating a spring in a unity compatible way

I want to model and animate a spring in blender. But my animation seems not to be compatible with unity. What I tried so far: Curve Created a curve and added volume to it Added a Bone Mapped the bone ...
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Are vertex groups good for rigs?

Hi Blender Stack Exchange, I have a reasonably simple question to ask. Is using vertex groups a good option for rigging? I'm not very good at weight painting, and I've found that vertex groups are ...
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How to unlik bones? [closed]

Hello everyone: when I move the top part of the skeleton down, all the other bones follow. I would like to know if there is a way to move the upper part of the skeleton down, without affecting the ...
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Why can't I connect my head/face armature to my body armature using parent, bone constraints, or anything!

I have a perfectly working body rig, everything is parented and works fine. I have a face rig that does everything that I want it to do. The eyes and teeth follow the head and the bones for the lips ...
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parent bones in blender

Hi, in edit mode I can't parent the bone the other bone because parenting menu gets passive , the other bones what I try I can parent them.you can see in image
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I want to link the back pack with spine

My model data. The back belt is oddly detached from the body. I added bone is it needed to connect these bones? How to connect? I tried to parent. But those can connect the lonely bone head to the ...
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Copy Rotation to Only Z Axis Not Working as Expected

I'm trying to get the selected ring in this picture to only rotate on its Z axis whilst tracking the lower mounting to the leg. What should happen is that the ring rotates so that the hydraulic, which ...
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can i avoid a parenting dependency

I'm wanting to know if I can avoid (i belive its called cyclic) dependency. basically, I want one bone to be a child of the other but I also want that bone to be the child of the first so they both ...
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Cannot Bake Bone Animation

So I have this bone animation with all the constraints, and I want to bake all the bones so that I can get rid of all the unnecessarry bones and keep my armature clean. Here is what I did: in Pose ...
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Armature Weight Paint - Not Easing, not smooth, 1 to 100, not stretching, deform not smooth, deform not easing

I have applied armature to a mesh and modified the weight paint. When I pose the armature, it doesn't deform the mesh smoothly. If the weight is greater than 0.001 then it seems to deform it 100%. How ...
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Bones assigned to vertex groups are rotating and moving in unexpected ways

I'm working on a rig for a robot and i dont want the rig looking "natural", so I created vertex groups with the same names as the bones to assign the bones to the vertex groups instead of ...
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1 answer
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I want a backpack on my back and waist

My model data. The back belt is oddly detached from the body. How do I fix this? I uploaded my data. It doesn't use auto weight yet. I want to relate collect with born. The first picture one is just ...
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global affine transformation matrices for bones

How can we use blender scripts (bpy) to extract the global 4*4 affine transformation matrices for each bone for linear blend skinning? i.e., How can we extract the T_j matrices in the image below (...
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How do i make a string of a recurve bow behave in a realistic way?

I made a rig for my recurve bow using this tutorial: https://www.youtube.com/watch?v=ZVhFsR_TR7M The problem is that when i pull far enough the string should follow and stop sticking to the bow. I don'...
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How can I assign multiple bones to one vertex group?

Although having almost a year of experience, I still suck at Blender. I recently figured out that you can assign a bone to a vertex group by naming it the same name as the vertex group. How could I ...
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Detecting when a bone has been added to a new bone layer

I'm trying to capture an event when a bone is assigned to a new bone layer in an Armature. This code works, but not initially. No updates happen until another bone layer is created or the bone is ...
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How to add new bone to my current control rig for animation?

I have a model which I rigged with the Mixamo addon (it's humanoid). Now I have to add a new bone (or something, probably it could be an object Empty) to make animation for ball (run with ball - new ...
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How can I get this curved piston to pivot properly on this mechanical hand?

In the process of making this mechanical hand I am trying to add a small piston that pivots on the fingers. The issue I'm having is that the part of the piston that joins to the finger is curved and ...
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I need my extensible, stretchy arm to stretch only in a single local dimension axis [duplicate]

I want to parent a mesh to an armature whereby it only stretches in its long (Z) dimension, like a stretchy arm. I've tried countless variations of defining bone Deform and bone IK parameters, and ...
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When I retarget to my rig it bends and contorts in odd ways

I have used this exact rig on another project with no issue. Now for some reason is doesn't want to retarget properly. Maybe I have toggled something on or off, I am open to all suggestions. I used ...
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New bone in armature doesn't move in animation after export into unity

I rigged model in Mixamo and then I used this armature to animate my model. Now I had to add bone to my armature but I don't get it how to do it. I has three different situations with this. When I ...
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why when i edit bones and open mirror funtion,the other side move weird

here is the video I guess it is relative to bones'axis .i don't know. and when i rotate both the character and the bones,thecharater's left arm distort. here is the video
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Bones don't attach to some parts of the body

Disclaimer: I'm fairly new to Blender and 3d modeling in general. I made a human-like structure with separate objects, then I joined them together and added bones. But when I rotate the bones, some ...
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Bones disappear/get deleted when applying pose as rest pose

So I was messing around with a really large model in blender and found that the bones are really small and hard to select, but I'm still able to pose the model in spite of this nuance after resizing ...
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Fix bone symmetry

I'm having an issue where some bones on my armature aren't perfectly symmetrical with the corresponding bones on the other side. Is there a way to fix this without having to delete the bones? To ...
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Can a hook be a parent of a bone?

I have a curve with a hook and want the vertex of the curve to follow the rotation and movement of the bone. I can snap a mesh using Ctrl+P and "Snap with empty groups" and then assign a ...
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Copy Bone Positions Between Armatures

Is there a way or a simple script to copy all bone properties (head position, tail position and roll etc) from one Armature to another Armature with corresponding names? Not copying poses from one ...
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IK Bone act weird with control bone and does a 180° rotation

when I try to position my control bone from my armature the whole construct makes a 180° roation which I don't want. But the pose that my object should do looks like this and I can't get it this way. ...
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Auto bone controller addon issue

I'm new to Blender and using version 3.2.1. I don't know Python. I have found an amazing video on Blender’s Bendy Bones: Blender #EasyRigging for Animators - Facial ...
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Control bones for bendy bones and attachment to mesh

I'm new to Blender and using Blender 3.2.1. I would like to create mimic for a character using Bendy Bones. In other words, I want to create bendy bones, create ...
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Armature export to gltf , wrong bone scale, direction

I made animation in Blender, and I want to export rigged animation to gltf/glb. For some reason my bones go very big and direction goes wrong. What should I check for this and what should I do for fix ...
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My bone isn't moving the part it's weight painted to for some reason

I have a model, and part of the model is separated and is able to be moved. It's weight painted red for both the main bone and for the individual bone controlling it, but when I try to move the bone ...
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Bendy Bones Deforming when Importing to Unity from Blender

I have recently created some vine animations that grow from the base of a plant. I used multiple bendy bones per vine that would stretch and move the mesh. However when I import it into unity it doesn'...
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rotation slightly off when using track constraints

I am using some tracking constraints to get a gun to point to a hand. This is what I have so far: It all works perfectly fine but as you can see, the left hand is not holding the gun meaning the gun ...
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Bones won't attach to certain model/mesh

I wanted to practice rigging so I grabbed a model I had downloaded and decided to go about trying to rig it. I went through all the steps in this tutorial. https://www.youtube.com/watch?v=9dZjcFW3BRY ...
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My bone gets to a weird location after setting target for Follow Path

As the title says, my bone gets teleported to a weird location and my armature bugs after I use follow path on the bone and set my path as target. I tried to re-model and create the whole armature ...
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Moving a bone, makes another bones but further

Is there a way i make a bone controls another bone's movement? To be specific, when i move Bone A up to 50cm, it also move Bone B which also move twice further? Thank you.
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how can i connect 2 bone tips to each other?

im trying to connect 2 bone tips so they stay connected to each other. I'm rigging a painters mask to be able to sit on a hanger or something (no, cloth sim doesn't work on it) for example, if the one ...
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Why the exported GLTF model looks bigger and in a different position than in Blender?

I have this model: But the final export looks bigger and in a different position:
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Issue with overlapping bones

I have character model that have multiple objects and bones. Models were psk files. I want to merge all bones in one armature but ctrl+j simply doesn't work. It ...
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How to change the scale of each bone?

I would like to change the bone scale for a material. I want to change the specified bone to scale -1 for XYZ as shown in the video below. I have drawn a script to try it out as shown below, but I can'...
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How do I assing a copy_transform constraint to bones stored in different lists?

So, I am writing a set of scripts to help me out with manual rigging in Blender. But I came across a problem when trying to assign constraints to 2 different groups of bones that I store in separate ...
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Can you add a global squash and stretch control to an entire bendy bone armature?

I have a simple armature made from bendy bones, each bone with a "Stretch To" constraint. The resting pose is on the left, and some other pose is shown on the right: Is there a way to add a ...
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Adding bones to outstretch arms further, as well as adding a main squash and stretch

I am trying to learn about rigging (Blender beginner, and have only done a couple of simple examples so far), and have the following model: The effect I am looking to achieve is for the letter "...
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Is there a way to copy constraints from one armature to another?

I have two armatures, all the names and the number of bones are the same, but constraints are configured for one armature, is there a way, perhaps some script to copy the constraints to second ...

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