Questions tagged [constraints]

Constraints are object features, they control in various fashions the object's transform properties such as its position, rotation and scale.

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Hand modeling and rigging research

Good evening, I can't find any courses on realistic hand rigging and modeling for blender 2.8 so I am designing my own from scratch. I think I found a good topology for the finger joints but my ...
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Stack layers on top of each other

I have just started using blender 2.8 and I want to create several layers with different thicknesses and material properties on top of each other. I have looked around and I understand that you can ...
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Bone Constraint: Copy Z Rotation to Y Rotation, but Inverted

i have two bones, a parent and child, that are at right angles to each other. i want the child to counter-rotate with the parent's rotation. for the x rotation, that was easy enough: copy rotations, ...
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Pose changes when switching between modes

I have a problem with my rig. When I change between edit mode and pose mode or whatever makes rig calculated my bones appear in different positions. Like this; This is the pose I want, and also has ...
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Small Joint Rotation Limit problem (2 week rookie!)

So I imported a mech i made then after rigging everything and weight painting everything i wanted to add some limits to some bones because my model is a mech and come joints should only bend in one ...
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Constraints not working in render

I have a fairly simple car rig that I made using this tutorial. Basically the wheels are children of the car body, with the car's X position acting as drivers for the wheel's rotation. Everything ...
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Co-dependence of parenting help

I'm still new to Blender. When I try to make a human's spine helper on my skeleton, I use multiple helpers, they take helper1 plus helper 2 to take the rotation of the bone. On Maya I know that I ...
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Why is the 'Track To' constraint not working?

When I use the Track To constraint, my object snaps out of the original position and doesn’t track on the direction I want it to. How can I fix this? before adding the tract to constraint, the body ...
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What is Local space in constraints?

According to Blender's manual: Local Space is the parent of the object (or bone) is the frame of reference. Location is relative to the parent object origin. Rotation and Scale are oriented to ...
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Model's forearms won't fully extend

I am trying to rig this model as best I can, but no matter what, the "elbows" seem to refuse to bend forward. Is this because of the Limit Rotation Bone Constraint? Did I make too small of min and max ...
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Lock pose during animation?

is it possible in blender to lock relative positions of bones for a number of frames and during these frames animated the armature as a static object? For example, beginning of animation move around ...
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Is it possible to “chain” action constraints on the same bones?

I asked this question yesterday > Animating tentacles And one of the comments pointed me to using action constraints to achieve the effect I want. I followed the linked tutorials, and I was able to ...
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“Child of” bone constraint on multiple bones, rotation issue

I am looking for a way to get multiples bones to parent a control bone in a particular way. At the front of my cat model I have a bone I call "direction driver." In the cat skeleton I have some bones ...
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Advanced Rotation Animations

I'm trying to model a set of gears for a clock (it doesn't need to be perfect) but I'm having trouble with my constraints causing things to jump when they're fractions of a copy. I suspect this has ...
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Forcing two cylinders to touch when modeling

As the title said: how do you force two cylinders to always touch while modeling. What I want to achieve is that I can move or rotate one of the cylinders during modeling, but with a constraint so ...
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Object Constraint - Object won't make a 360º rotation [duplicate]

What I'm doing wrong here? Why is the gear like reseting its rotation? https://imgur.com/vhGcLMh (Gif too heavy to upload here)
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How do I duplicate bones 90° and copy rotation?

I have a set of bones with an Inverse Kinematic constraint. I need to be able to duplicate this set up so that I have four sets in total, each rotated 90° about the center. I'm not sure if this is ...
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How to set a custom center point (pivot point) for the “copy location constraint” (include a simulation video in content)

I would like to know how to set a custom center/pivot point for the "copy location constraint”. So when we set the X/Y/Z invert of the copy location constraint, two objects can move toward the ...
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Orient animated camera horizon to object Y axis

I have Empty in scene center and camera as a child to this empty. Camera always look in center of scene and 2m far from this center. In center i have long Y side object. I "tilt" camera by adjusting ...
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Blender linked Rigid body constrains for fractures

The Rigid body bullet constraints was a good add-on to quickly set up inter object constrains for fractures or so. It works and still is for 2.7x but there's no way to do in 2.8x as I didn't consider ...
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How to use spring constraint on a moving object?

I’m trying to animate a bike that will be going over rough terrain, and I want the rider’s body to react with physics. I’m trying to use the “generic spring” rigid body constraint, but whenever I use ...
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Does the iTaSC IK Solver Turn off the FK Rig?

i put some iTaSC IK constraints on my rig, and have been using them to animate. however, i turned the IK constraints OFF to pose the fk rig... and my fk bones will NOT move. is this a side effect of ...
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Object parented to a bone moves twice faster than the armature root bone

I'm rigging a wheel and When I move the root bone of the car armature, the wheel move twice faster than the armature, The rotation is ok, but I can't find the way to make the wheel move ok. Video ...
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Strech Bone Constrain problem

I have a bone with stretch constrain, when I try to move the target bone, the stretch bone goes crazy doing things not related wuth the movement i do with the mouse. any idea how to solve it?
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How to easily edit action constraints

I am learning action constraints. However, animation and action constraints create overlapping effects, so we had to assign a fack user to the action data and remove it from the all bones. That ...
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Can I make character hold hands using contraints?

Trying to solve a problem here. I've got two characters, each with an already animated walk cycle. I want them to be holding hands: I tried doing by hand but the result is too jerky: Is there some ...
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Point Constraints Breaking When I Append Them

I made a simple ragdoll using point constraints but when I try to append it from my main library file to another file, none of the joints work and the ragdoll just falls apart. This is the ragdoll in ...
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Can I use offset instead of y to map texture in displace modifier?

I'm animating a fish to swoosh around as it moves forward using a displace modifier (like here: https://www.youtube.com/watch?v=58lc8sLpJzY). The problem is that I want it to go in a circle using a ...
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Problem importing a ragdoll model

I've added ragdoll physics to a rigify rig. I've grouped everything together in a collection. It works on the original file, when I hit play, I can grab the doll and shake it all about and get good ...
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22 views

LookAt-/ChildOf-Constraint lagging

My Setup is basically a human rig that running along the Y-axis. I want my Camera to move at its side and look at it. I use Blender 2.81. My plan was to put an Empty at the Position for the cam and ...
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42 views

Setting up a tube rig for an astronaut character

I have a scene with an astronaut character with tubes on the side of the helmet going to the back. I would like to set up a rig to allow the helmet to turn and the tubes react like they would in real ...
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Blender force field not obeying distance constraint

I'm looking to animate a series of objects confined to a sphere. The objects should all move in a clockwise direction, imagine fish swimming in a spherical fish bowl. I'm trying to achieve this ...
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Discontinuous rotation with 'Transform' constraint

With the following script : ...
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Is it possible to constraint an object on a vertice?

Is it possible to contraint an object on a vertice instead of the entire object? Like an arrow on a body. Or to a face, so that the constraint object would move according to the face's normal?
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Render single image perfect but rendered animation has objects dissappearing

I have finished a 650 frame animation. When I render a single image as PNG image the render is perfect. However when I render the whole animation as PNG eequence, the images making up the section ...
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Bone Limit Rotation constraint not fully working

So I'm using a Damped Track constraint and over that a Limit Rotation constraint as I only want the bone to rotate in X axis. This is the only setup I get it "working" but it has one tiny mistake, it ...
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28 views

How can I use Visual Keys?

I have a cube with a Follow Path constraint. In the first part of the animation, I need it to move along the path. In the second part of the animation, I need it to be free of constraints and move ...
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If you set 2 Child Of constraints on the same object, is the order of the constraints in the left side properties panel important?

If you set 2 "Child of" constraints on the same object, is the order of the constraints in the left side properties panel important?
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How to stop ridgid body object floating around?

I have atached a link to the problematic blend file. https://www.dropbox.com/s/vaxriy8lfo1palg/robotHat2-animated_ridgid%20body-copy%20float%20hat.blend?dl=0 At about frame 300 it appears that the hat ...
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Making an object heavier on one side to afect the fall of an object with ridgid body (active) applied to it

I want to make an object (which has rigid body_active applied to it) to be affected by gravity more on one side, as it falls to the ground. How can this be done?
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Dynamic object parenting; Does it exist in Blender?

I would like to be able to dynamically parent and unparent an object to another object so that I can freely animate the parented object while it is not dynamically parented. Is their a way to do this ...
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armature doesnot follow path after applying follow path constraint on armature object. The body separate from the armature

I face the problem with the follow path constraint which is when i set the armature to follow path constraint,it doest work but the body separate with the armature. Seek for help.
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How to animate a character throwing their hat on the ground?

I have a snowman with a hat. Link here: https://www.dropbox.com/s/jji57qkhwe3yhhp/robotHat3_childOf.blend?dl=0 I want to animate the snow mans hand grabbing the hat and throwing it on the ground in ...
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Can't find bone name when adding bone constraint inverse kinematic

I'm trying to do add bone constraint, and then inverse kinematic. I've renamed all the bones, but the names don't show up in the bone list under add bone constraint, inverse kinematic.
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Why is my mesh not fully taking the location constraint serious?

I animated the ROOT bone, and added a 'Limit Location' on the BottomRR set to be fixed on Z=0. But somehow the ROOT bone forces the mesh to dip under Z=0 during the rotation (while the bone BottomRR ...
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Blender 2.8 - Reapply base position for bone constraint after applying visual transform

is there any way to reapply base position for all bone constraints? Applying visual transform to bones deforms whole mesh, but disabling bone constraints fixes it. I have 8 animations, but it's so ...
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25 views

Block camera roll while following path

I'm trying to make the camera do a kind of tracking shot in 3D space. So I created a bezier curve, added a Follow path constraint to the camera, and selected the curve. Then, since I want the ...
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Freely move and rotate tip of bendy bone?

I have an object that i'd like to be able to translate and rotate freely, while the bendy bone below stays attached and curves and stretches accordingly. This works in edit mode but not when i switch ...
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Can a bone influence it's parent as in IK, but at the same time behave as if it has “billboard tracking” in relation to the IK's target?

So I made a rig for an arm where the wrist rotates to acomodate to the movement of the hand (simple IK, hand bone as owner, chain of 2 includes the wrist bone with an extra bone without parent as ...
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How to set the animated character's position on the grid floor?

I already animated the action for the character, just realise that the character in the middle of the grid floor, My question is how can i set the character on the grid floor instead of inserting ...

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