Questions tagged [constraints]
Constraints are object features, they control in various fashions the object's transform properties such as its position, rotation and scale. Use this tag for questions pertaining to constraints and their usage within Blender.
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Copy rotation between bones copies the wrong rotation
I have applied a copy rotation constraint to the forearm twister bone on my rig so that it copies the x rotation of the hand ik bone so it rotates with it and smooths out the wrist twisting. Although ...
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Problem with flatbed cameras
I am new to blender, I am currently doing a camera tracking on a bezier. But the problem is that when I choose the target for the camera constraint it becomes flat. And the view does not render ...
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Character's rig not moving with cloth object for physics
I followed this tutorial on how to make cloth physics with a rig. However, the bones that I told to parent to the cloth object are not following said cloth object.
Here is the set of bones I attempted ...
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How to apply secondary constraint to an object as if the first were applied?
I have two constraints currently active on an empty object: 'Copy Transforms' and 'Copy Rotation'. The order of these constraints are important to produce the correct result, but I would like to apply ...
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How to change location of objects without having the constraints affect the objects look/values?
I am currently trying to make a thrust vectoring jet engine nozzle. However when Ii Alt+D duplicate the object to rotate it around, the constraints starts messing with the object making it weird. ...
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Bones not moving with the rest of the rig
I have these bones in the front that are controlled by empty arrows.
They move fine in the X axis.
But when moving the Z and Y axis they keep pointing forward
The arrows are parented to the main ...
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Parenting Bones to IK Control Bone- Are Transforms inherited?
I have a Problem with my IK.
I parented the Circled Bone to the IK Rig's Control Bone (Facing toward Camera). But the Circled Bone inherits weird transformtations.
When I move the Control Bone in X, ...
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Tank treads wont spin on Z axis using constraint child of settings
I have make tank tracks, did all the necessary with array, and curve modifiers. I also have object constraint child settings. And empty object parented to my Mesh and curve. I enter the settings as ...
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Hinged door by Copy Rotation: what if wall rotates?
I want to do wardrobe in Blender with hinged door. The simplest way to do it is by Copy Rotation constraint. On picture below, I have blue thing (wall) and red thing (door).
Door has an origin at ...
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Limiting the effect of Copy Rotation constraints on a single axis. Having issues with axis flipping
As part of a larger rig, I'm trying to achieve the effect where a deformation bone copies the location of a root bone, and the rotation in the Y&Z axis, but when rotated on the X axis only copies ...
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Can I animate multiple armatures in a single action
I have a gun armature and arms armature. The hands on the arms armature have a child of constraint connected to the gun armature. When I create animation of the gun reload, I need to create separate ...
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Add World Rotations to Bone's Local Rotations
It's pretty easy to combine local rotations from another bone onto the active bone's rotations using "add, local space, local space" when the other bone is using a similar orientation. But ...
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Copy Scale constraint: scale Y of cube A equal to scale Z of cube C
I have two cubes: red one (cube A) and grey one (cube C).
Cube A has scale X and Z equal to 1 and scale Y equal to 2 or more. So it is more bar then cube.
I want to make cube C the same bar, but for Z ...
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Copy Rotation Constraint 50% Without Popping
I have a bone that acts as a container for two other bones along its primary axis for limb twisting. The top bone does an inverted twist rotation of 50% of its container/parent to make it work (the ...
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bone constraint : I don't understand how to "copy rotation" correctly
I'm trying to copy the rotation of the target bone of a leg chain to the foot, like in this tutorial.
Thing is, Blender has changed and the constraint has not the same options than before.
I don't ...
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As soon as I enter the "map to" value of the transfomation constraint, the object gets an offset
To explain my problem, i'd like to begin with what my intend is...
I have arrayed an object around an empty, nothing special. But i want to have a curve to connect the arrayed objects (ao in the ...
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How to control the position of an IK bone using another object
I have a character who needs to open a cupboard. The simplest way to do that seems to be to add a ChildOf constraint to his hand controller, link it to an Empty which is parented to the cupboard and ...
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Use an object as the up target on a track to constraint
Is it possible to use another object as the up axis on a track to constraint?
By default I only seem to be able to use the world X, Y or Z axis.
At the moment I'm using a single bone IK constrain and ...
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Adding noise _on top_ of damped constraint?
I've created a cone and in the graph editor, I've added noise modifiers to the x, y and z rotations. So, the cone jiggles about a little bit on all axes.
I want the tip of the cone to track the camera,...
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How to parent shutter lens rig to object
So I created a shutter lens rig for an eyeball that works fine, but when I try to parent it to an eyeball on my character it doesn't keep transform and I'm not sure why. No matter how I try to parent ...
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Child of constraint + root motion issue
so i currently have this setup where i have a rig of a character using a spear with a weapon bone which is parented to the root bone of my skeleton. then i also have both left & right hand bone ...
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How to keep child level while rotating parent
My goal is to keep an object level to the ground, following the arc of its parent when I rotate the parent (a Bezier circle curve). At the moment, the object rotates with the parent, even if I lock ...
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Apply Copy Location/Rotation Constraints does nothing?
If I have an Object that has a Copy Location (or Rotation) from another animated object, and then I Apply the constraint, the object/VG/bone remains un-animated. Is this expected? Should it not &...
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copy rotation not working properly after joining two armatures together
So I created a robot hand and I rigged the fingers with separate armatures using limit rotation and copy rotation constraints and it worked. After the fact I created the rest of the robot and started ...
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Make only a bone follow a path?
Is it possible to just make a specific bone and its children follow a path via the Follow Path constraint, and not the whole armature?
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my armature is having some issues its not connecting with follow path
my armature is having some issues its not connecting with follow path when i select armature then nurbspath then click CTRL P CLICK ON PATH CONSTRAIN NEITHER ITS CONNECTING WITH IT NEITHER SHOWING IN ...
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Copying animation using copy transform on IK pole/target bones
I have a very specific question. I am trying to compare a human MOCAP animation to the same animation, but where the interlying bones are controlled by IK. So I would use the same end-effector and ...
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Apply Follow Path animation to an object?
I have an object with it's own skeleton that is parented to an Axis that follows a curved path using the Follow Path constraint. I want to apply this animation to the object so it can be independent ...
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How to rotate an object around another object's local axis?
I am making skyboxes for a game, and would like to prototype the skyboxes' rotation angle in Blender. I made a simple vertical mesh line that represents the rotation axis of the skybox, and I would ...
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Transformation Constraint
Is anybody aware of a comprehensive 'Dummies' guide for the Transformation Constraint? I'm having a real problem figuring out how it works.
Specifically with converting rotations - I'm trying various ...
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Locking an empty's position to a vertex with shrinkwrap constraint
My problem is that I have a rope that has a cloth animation, so it's hanging between two points. The rope is a single edge with several vertices on it. When I try to attach emptys to the vertex with ...
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How can I keep transform of object with child of constraint as local to the parent?
I animated shooting anim with gun and arms. The gun uses child of constraint to be a child of a hand. Although after exporting animation to some external programs (unity in this case) as fbx, ...
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Retargetting code using transform modifier "KeyError"
So to be clear, the purpose of this script I am making is to make it so:
The value of a bone in rig A in Edit Mode is copied
The value of a bone with the same name in rig B in edit mode is copied
A ...
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Rigging a man pushing a cart?
Could someone please help me with how to build this guy pushing a cart? I've already tried, but with my limited knowledge of blenders, I'm not getting very far. The idea would be that the main driving ...
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Empty is not following the bezier circle path [duplicate]
I am trying to make the plain axis follow the bezier circle path using a Follow Path constraint, but it is not following around the circle path, instead it goes off beyond the path.
Any solution? I'm ...
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Limit rotation of rigidbody?
I've been working on a drumset and I'm facing some trouble with the cymbals as I want them to move dynamically if hit. I tried setting them up as active rigidbodies and the joists as passive ...
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Follow path contraint based on armature location
Just wondering if this is possible. I want a simple armature to follow a path based on location. I set up a bezier circle as the path and linked an IK rig to an empty with the follow path constraint ...
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What is costing so much ram while modeling?
In Blender 3.3.2, AMD 3700x, RTX 3070 using latest studio drivers.
These are my current stats while modeling.
I only have 10 active subdivision modifiers with low settings, 2 active booleans and most ...
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Limit Rotation bone constraint resets rotation when it hits 180 degrees
I'm trying to limit rotation in one way but allow almost full rotation counter wise to that locked rotation. So far I have achieved what I was trying to do, but it doesn't allow full rotation for some ...
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Is it possible to track an animated object within Geometry Nodes with a camera?
Is there a chance to track an object/instance generated inside Geometry Nodes with a camera? Can I provide the coordinates of an animated Object per attribute to an Object Constraint?
This is a small ...
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Mechanical rig problem I can't figure out
I'm trying to rig this mechanical leg to go from a 45 degree angle downward, to an upward 90 degree angle like this:
I have a piston sort of mechanism beneath the leg that extends and contracts as ...
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SOLVED: How can I add a bone constraint to an already animated bone without affecting the animation?
Sorry I realise the title is not as clear as I'd like but I could not think of a better one!
I have animated a hand and fingers to play a bass guitar using Auto-rig Pro. While not perfect, the ...
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having trouble with bone relations
So what I'm trying to do is have lower lip bones (red) to be a child of the jaw bone of 0.35 influence (blue) and still rotate with the head.
Things I have tried and why they don't work:
make lower ...
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Is there a way to make an action constrain cycle?
Okay, I don't have an example file, this is currently an academic thought that could be useful in future projects.
Now to explain what I am thinking, the idea here would be a rigged character with a ...
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How can I rotate bones around a pivot bone?
I'm trying to build a rig for some simple animations and I'm trying to figure out how I can rotate bones around a designated bone as a pivot point. Essentially, what I'd like is to a have a bone (say, ...
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Why does Object Solver constraint move object outside the range of frames I tracked?
I have a movie clip that's 1027 frames long, the object I wanted to track only moves in some of those frames so I just added tracking markers for this range, i.e. frames 241 to 895.
So when I created ...
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How to make a flat plane follow a bone without rotating
So basically I want to do what should be a simple 2D eye rig where each part of the eye is a flat plane that follows a bone but doesn't rotate
This the eye (each color is a plane)
This is how I want ...
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Head tracking with torso rotation
I try to setup few constraint for the head follow the target and the torso following along to make animations easier.
My plan was
1-Head bone with Damped track targeting the sphere
2-spine_03 bone ...
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Head tracking Target
Every time i tried to make the head bone follow a target , it never work , i tried with both Track To and Damped track and it always end up with the head being snapped , looking away or not reacting ...
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