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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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1answer
3k views

Animate the parenting of an object

let's say we have a magazine, a gun, and hands. The magazine is parented with the gun. When I make an animation of reloading, I want the Magazine to be a parent of the hand, then after the magazine ...
7
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2answers
11k views

How can I reverse the direction of bones in my armature?

I spent a lot of time building up my armature for my dragon model and then, after I was all done and started to refine it, I realized that the bones from the pelvis out to the end of the tail were ...
2
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2answers
4k views

Why do some bones in my armature disappear when I go into Edit mode?

I made a rig for a model of a dragon and for some reason, when I go into Edit Mode, some of the bones disappear: I don't know if this is relevant or not, but I created the rig using the standard ...
4
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1answer
3k views

How can I make a long strand of bones without having to extrude each one?

How can I make a long strand of bones without having to extrude each one? Here is what I'm trying to accomplish:
7
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1answer
7k views

How can I position bones in a model easily and precisely?

I tried to position the hand bones of my rig / armature, but it was SO difficult to get all those little bones to align in 3D space accurately, even when I was using Quad View. After working on it for ...
5
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6answers
2k views

Rigging a Pac-Man-like character

I have created a character that is basically a big moving eye with a tail. I am having problems wrapping my head around how to assign bones and weight it appropriately. Here's a picture: I have been ...
1
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1answer
2k views

Modeling Offset Issues

I was running through a tutorial I found and for this tutorial, the bone that is supposed to rotate the entire foot is wrong. The instructor cleared the parent for the bone that protrudes through the ...
3
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1answer
801 views

Bones and rotation property sliders

I am creating a UI for a rig and I want to have a property on a panel. The property is a bones rotation_eular.x value and it needs to be a slider. When setting a property as a slider "slider=True" it ...
10
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4answers
5k views

Three bones following a curve

I have a chain of three bones and I want them to follow a curve (bezier curve). I've tried to do this creating a bone constraint follow path but it doesn't work. I'...
2
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1answer
2k views

Using Scripted Expressions for Shape Key Drivers

I am having trouble finding an example of how to use python scripts to drive shape keys, as opposed to using python scripts to move bones which animate the characters mesh through Bone Driven Shape ...
5
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1answer
1k views

How to rig flaps

I have modeled a simple air plane. It has flaps. I would like to easily animate the flaps. THe flaps are part of the plane mesh. How can I rig the flaps so that I have a single control for the flaps?
2
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1answer
447 views

How to rotate an EditBone? is it possible

I have a dict of 2d data and I want to generate bones (skeleton), assuming z = 0 for translation and rotation is across z axis in given dict. ...
3
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1answer
2k views

bone/armature movements during game play

I am trying to simply move a bone that has been parented to a mesh in Blender 2.69. I want to do this in real-time - while the BGE is running. I linked an Always logic block to the python code seen ...
7
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1answer
14k views

Bones not moving in pose mode?

When ever I try to move or rotate a bone in pose mode, nothing happens. The bone stays frozen, not moving to any axes, no matter what bone I chose.. I tried rigify ready to use mesh but had the same ...
1
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1answer
3k views

IK + Pole Target {Rig} is =//= Twisting my Characters Mesh

When i apply this rig i have here to my test model. With automatic weights. It totally twists my model. Any clue whats causing this? I tried to mess with the poles rotation. And i tried to apply ...
4
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1answer
4k views

How do I Attach a Rigid Body to a Bone?

I'm trying to make rigid body physics interact with an (Armature-)animated character. For starters, I created a short piece of chain falling onto an animated box. The chain consists of 5 individual ...
6
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1answer
6k views

Bones moving wrong part of mesh?

I have an armature set up, but the bones aren't moving the mesh properly The mesh and armature: The vertex group of the bone I am going to move: As you can see, the circled region doesn't belong to ...
7
votes
1answer
19k views

How to re-parent a bone?

I have rigged a gun, but the bones/armature is attached to the wrong bone. I need to move all the bones which are meant for the gun to a different bone. Images which explain the problem:
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3answers
12k views

X-Ray Mode is Not Working

I'm new to Blender and still learning how to make a simple character, but when I started creating the Armature the X-Ray Mode is not working probably. I enabled it and I can't see the bones. That ...
3
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2answers
10k views

Aligning bones' axes to the global axes

I am using the quaternion rotation mode to rotate bones into poses for an animation. For some of my bones, when I increase the X value of the quaternion the bone rotates around the y axis instead. For ...
4
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2answers
1k views

Strange mesh deformation when using the action editor?

I have had this problem before and it's starting to happen again, but with a different mesh. Note that it is scaled up a tiny bit. When I create a new action called reload and animate only the ...
4
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3answers
12k views

Change size of armature bones?

I want to be able to do is change the size of the big bone a bit so I can actually see what I'm animating. I want to be able to wireframe the armature so I can see the hands. So in other words, I ...
3
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1answer
1k views

Multiples animations in a single blend file

For a University project I need to make a fish (guppy), create bones, add them to the mesh, create some "realistic" animations on the timeline, and finally redo the last point to be able to set ...
1
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1answer
1k views

mesh won't deform (in pose mode) once parented to bones

So I followed this tutorial: riggify to the letter and once I go into pose mode, my mesh will not move/deform with the bones. Only the bones move, without any of the mesh. I have tried parenting to ...
2
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1answer
96 views

Rotate bones using a texture?

I have an armature, and I want to do a "flailing limbs" effect. I figure a good way to do this would be to have a noise texture and rotate the bones in accordance with the texture. Is this something ...
2
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0answers
1k views

Automatic mapping of walk animations based on object velocity [closed]

I'm looking for a way to automate walk cycles, so they can be reused in any scene on top of the normal armature action. NLA strips make this possible to a basic level: You can have a separate action ...
4
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1answer
470 views

why is 'child of' modifier scaling my bone?

I'm having so many issues with parenting bones. I'm trying to use the 'child of' modifier to parent a 'lightsaber bone' to a 'hand bone'. But when I apply the modifier, the lightsaber bone and its ...
3
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1answer
9k views

Blender assign armature to mesh: “bone heat weighting failed to find solution for one or more bones”

I get this error working with Blender while I try to assigning armature's bones to an human mesh.
6
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6answers
17k views

In Pose mode, my bones are stuck in rotate, and wont transform

When in pose mode, the bones on my model wont transform, they are stuck in rotate mode, though I can scale them. This problem now occurs whenever I try starting a new project. Some bones that I made ...
5
votes
2answers
38k views

Model won't follow its armature in pose mode

I've set up a rig and built it around my model, and I've linked it to my model but when I rotate the bones in pose mode, the character doesn't move with them. My rig is the human meta rig that comes ...
5
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1answer
1k views

How can I rig a cube in Blender so that it bends and twists?

How to rig a cube so that the corners of the cube can twist and bend? It will hopefully have a face too.
5
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2answers
2k views

How can a bone's tail be changed by a script?

I want to calculate a rotation matrix from two vectors, in order to check the steps are correct I have setup 3 armatures. A reference bone (arm_org), One that is directly rotated by applying a ...
4
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2answers
6k views

Removing automaticly generated (automatic weights) weight paint

I'm very new to the topic of weight painting, and have just parented several meshes to a rig. It all works well, except for one issue at the shoes (the bone of one leg not only drags that leg, but ...
1
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1answer
815 views

Default skinning for vertices with no assigned vertex group

I am trying to fix a problem with the FBX exporter. Two vertices in my test model don't seem to have bones/weights assigned to them. This is confirmed by printing vertex.groups to the console during ...
5
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3answers
13k views

Bone heat weighting: failed to find solution for one or more bones

I am creating men/woman character using MakeHuman tool and import into the blender tool. I followed the steps given in the below youtube video tutorial to work with blender. http://www.youtube.com/...
17
votes
2answers
11k views

Is there a way to convert a constraint to a keyframe?

I have a model in Blender with a full rig, including IK bones. I also have a sword with two bones, on the top bone of the sword I have a set of constraints that copy the location and rotation of a ...
9
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1answer
752 views

Can armature/bones be edited without edit mode?

I was looking after some information about armature and bones, so I can continue my importer script. I found some nice info here; no BMesh, and simple enough for my needs as beginner, so just perfect. ...
8
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2answers
4k views

How do you export bones relative to parent?

I'm currently writing an exporter script. So far, I can export meshes just fine, but I've got some problems with exporting the armature. According to the python api, there are three different types ...
7
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1answer
1k views

How are the Bones assigned to the Vertex_Groups in the API?

I´m working on an export script for Blender and I´m currently stuck at exporting bone weights. Here is what i have so far(excuse me if my Python is not that clean, the syntax is pretty new to me): <...
3
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2answers
1k views

Do some Bone Constraints only work with Root Bones?

While the Floor and Limit Distance constraints work well with the root bones of an armature. I don't get them to work with other non root bones. Is there any reason for that or do I miss a detail? In ...
4
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1answer
246 views

Point and Edges based on Armature Hierarchy

Someone asked me if we can do what the Skin Modifier does, but in reverse. For example, you started with some Edges and then create an Armature based on those Edges. If I started with Human Meta Rig ...
7
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1answer
2k views

Why do some bones in an animation lose their position when applying scale to their armature?

After starting with a stock armature with a run cycle I added a few of my own bones for various armor pieces on my model. As the stock model is too large for my game and the engine requires me to ...
4
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3answers
5k views

Can I influence the bone envelopes?

I was hoping I could get some help here. Is there any way to influence the bone envelopes? My Problem: I have an Armature and the Armature is set in stone and can't be changed. I have also an Avatar ...
5
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1answer
516 views

Can I use splines and bones together in the same rig?

I have model of an animal I'm building. It will have bones to animate the limbs, the neck, and the jaws. However, I want the tail to be less rigid. So, can I use a bezier curve and bones together?