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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25 views

How to make the camera rotate while tracking the target

I need to make an animation with a camera around the target At the same time The camera Angle needs to be tilted But I couldn't rotate the camera when I tried to use “follow path” and “track to” it ...
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1answer
32 views

Child of constraint with bones and objects

Trying to attach a bone to an object outside of the rig but its just not following with the child of constraint. I've clicked set inverse but it still doesn't follow. Can you actually make bones do ...
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How to keep shoulder pointed at bone

How do i keep the arm inside the mesh wile still keeping it separate as well as pointing at the body?
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63 views

Hydraulic Cylinder with Damped Track Constraint not aligning (2.8)

trying to make a cylinder..watched several tutorials and did the following.. Center the axis for Rod and Cylinder at the pivot points Add an empty plain axis for the rod and the cylinder Parent Rod ...
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“Selection to Cursor” Why it's not working nomally

I made two UV Spheres like this make Constraint-ChildOf insert rotation keyframe of target after few frame, I rotate target sphere and insert keyframe And then, when I try to "Selection to Cursor" ...
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45 views

Does 'Inverse Kinematics' override other bone constraints?

Rig is for a quadruped, I have IK applied at second bone, but I want to place a limit on the to the toes, so that they can't go below 0 on the Z axis. Selecting the Limit Location bone constraint ...
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126 views

Add ONE constraint to several bones?

So, I want to add a Limit Rotation constraint with "Limit Z" option checked for many bones at once. Now, I know about the "Copy Constraints" function, BUT in this case, the bones already have other ...
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67 views

I need to setup a camera to follow a character in blend4web

I'm working on a proof of concept for my comic companies website and want an immersive experience. To that end the goal is too put site visitors in the shoes of a character and have users "follow" the ...
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69 views

Is it possible to add a Child Of modifier without changing position of the child?

Currently, when I add a child-of modifier, the child jumps to the parent's head and rotates. Why is that? And more importantly, can I have blender not do that and keep the bone where and how it was, ...
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113 views

How to show transforms of Child Of or Copy Transforms constraint

I am trying to find a way to make the transforms from a Child Of or Copy Transforms constraint visible. Let's say the bone is in its default position and with the constraint activated changes to a ...
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2answers
48 views

How to get a hover craft effect (Object over Landscape)?

I have made a hilly landscape using the Landscape addon in blender 2.8. I have an object which I want to animate across the landscape by following the surface contours and maintaining a small distance,...
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42 views

Pause in relationships and constraints

I want to talk about relationships between (for example) two bones. There are two bones (A and B), bone B has a Cconstraint, bone A is the target of that Constraint. Let the Constraint be "Child Of". ...
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How to I bake IK targets into an animation?

I'm new to Blender, I have a rigged character in Blender. He is riding a ATV(quad). His hand bones have IK constraints with targets (empties) positioned at each handlebar. Everything is working as ...
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29 views

Delayed copy rotation…?

I'm trying to make a constraint or some kind of system in 2.80, where i have a vehicle, driving on a path (follow path constraint, also rotating, but only on z axis) and a third person camera, ...
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How can I convert these paths and constrained empties into animations?

I have a blend file with empties and boxes swirling about, following animated paths (beziers). I would like to convert these objects into a single animation that I could import into Unity, then ...
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18 views

My bone keeps on rotating. Need a little help with constraints

I'm trying to figure out how to rotate a rectangle box, and rotate all the parent bones along with the box so it can rotate a second time around another edge, and a third, and so on. I tried to ...
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1answer
52 views

How to keyframe child of constraint in and out

I am dribbling a soccer ball using child of constraint. In the image I would like to keyframe the ball where the arrow in drawn but when I try to keyframe it it still follows the child path, How do I ...
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165 views

What are the advantages of separating FK and deform bones in an IK/FK rig?

In an IK/FK rig is there any advantage to having a set of deform bones (DEF bones) that are separate from the FK bones? This is opposed to a setup where you have one set of bones you make FK ...
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31 views

Blender 2.8: Problem with Mechanics/Constraints/

The attached image shows a simplified excerpt of a bigger mechanical part. The sphere stands for a bone of an armature some kind of mechanical setup. The lower cylinder is along the X-Axis. The bigger ...
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42 views

Clamping camera to path, existing keyframe positions are thrown out when path is extended?

I'm using a Clamp constraint to animate a camera along a path for a long, continuous fly-by shot with pauses and target changes along the way. I'm keyframing on the transform of the camera dolly, but ...
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52 views

What physics make an object not pass through another, if it's the “Child Of”?

I am trying to add physics to the Lego Figure I have modeled. The body of the figure, has holes on each side for the arm, just like real Lego Figures do. I know I can attach the arm to the body, by ...
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1answer
61 views

Lock A Bone To a Slope Angle

I want to be able to have a bone locked to a particular slope vector and use another bone to control its length. The image below shows the armature and two bones. The Target Horz bone can be moved on ...
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1answer
50 views

Armature - freely adapting bones in pose mode

I wonder if there is a way to let a bone follow the pose of other bones. Here is the rig i need this for: The selected bones, representig the shoulders, mainly have the task of maintaining a ...
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60 views

Solution for constraints - need help

Hi fellas I have a problem with solving an issue possible to find in the .blend file provided. If You open the file there is a simple scene with constraints applied to the AXIS parenting two objects. ...
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291 views

Constraints tool for Blender 2.8

I am new in blender. Now I watch tutorials and try to make it. Have problem with making this tutorial (He create a glass and destroy it with the bullet). To complete it I have to use the "Bullet ...
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38 views

Switch child constraints

I am dribbling a soccer ball. I have set a child constraint to the ball for the left foot. Works great, Mid motion the player changes to his right foot, How do I ensure I get the same effect with the ...
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1answer
20 views

Adapt Limit Location Constraint to Bounds of Mesh Object

I recently asked a question here looking for advice on constraining a bone to within the internal space of a custom mesh object, using the default bone constraints available in Blender. I've been ...
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1answer
70 views

Limit Possible Bone Location Within Custom Object

I would like to be able to constrain the possible X,Y and Z locations of an armature bone to within the 3D space inside a specified mesh object, such as a cube or sphere (and eventually a custom shape)...
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1answer
8 views

Why parented to bone object has offset in local space?

Sphere empty is a bone's Сhild (origin is not cleared for it). Cube empty has CopyLocation constraint set to local space of Sphere empty. Now Cube has some offset, it is equal to bone's length. But ...
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2answers
39 views

Move objetct perpendicular to the viewport

The easiest way to move an object (G key) moves it parallel to the viewport. BUT, is there any way to move it PERPENDICULAR to the viewport? That is, in depth but not just constrained to the XYZ ...
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69 views

How to rig a plate so that it points to a target, with off-centre tilt, and constraints on elongation and tilt

a question from someone who has never done rigging before. I need to make a plate (in my example: a cylinder) follow a target (a empty). But with some constraints: There are three degrees of freedom:...
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1answer
79 views

Path constraint switching and timing

I am working on my character animation project. I want to create multiple paths for my character to follow, (do action). For Example, follow the first path from frame (x) and (do action) until the ...
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1answer
51 views

I need help with Path Constraint & Rigging

Blender newbie here, started using Blender 2 days ago for a summer project of mine but I ran into an issue here. I've done rigging & animating for my model and when I play the animation without ...
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13 views

Armature Rig: Copy y-location while x-location is on circle

I'm pretty new to rigging and blender in generell, so bare with me. What i want to do is move the green bone at the courser on the y-axis. Then the 2 yellow bones beneath should move the same y-...
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17 views

Point particles to empty

I am making a colosseum with a crowd inside. For the crowd I am using an emitter and I have a few very low poly people objects in a collection. The problem I am having, is that they are all facing ...
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1answer
91 views

How to get an empty tracked by a camera to move smoothly between keyframes

I have constrained a camera to track to an empty, and I've constrained the empty to limit its distance from the camera to outside 5 m and inside 10 m. I have parented the camera with the track-to ...
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19 views

Blender crashing without error message (Automatic Weights)

Trying to pose my model with Rigify and when I already make rig bones and setting parent to Automatic Weights (selecting the model and rigs) the Blender begin to process and then just quit with no ...
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1answer
157 views

How can I duplicate and translate a selection of edges constrained to the original mesh?

I have a rather large selection of edges on a subdivided plane. I would like to have duplicate edges right next to the original ones (on the same plane). In other words, each of the original edges ...
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1answer
155 views

How to constrain an object's motion with the Simple Motion Actuator

I've defined a Logic Bricks Simple Motion Actuator which responds to keyboard input to move an object along the Z axis. It works fine, but I want the object to be limited to move from 0.0 to 5.0 along ...
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1answer
183 views

Rig with sticky feet and hands, how do I create arm swings? (ex: playing tennis)

I've been using this tutorial ( https://www.youtube.com/watch?v=Q9f-WVs3ghI ) to create sticky feet and hands for my character rig. Sticky feet I've noticed is pretty standard for character rigging ...
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2answers
108 views

Hinge locked clockwise?

Trying to setup some mechanics in Blender, I ran into a "challenge". I've used a hinge to setup at gear, so that it only rotates around it's z-axis - simple. But one of my gears should only be able to ...
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1answer
344 views

Inverse Kinematics constraint with pole target

Salutations, I am currently trying to make a rig for a project involving 2D planes to create some kind of equivalent of DragonBones in Blender (I'm working on Linux and DragonBones isn't available ...
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27 views

Actual Constant Offset for “Follow Path” Constraint

Actually quite an easy problem, but I seem to be unable to find any solution for it. I want to move objects along curves while moving the camera on another curve pointing at the objects; for this, I'...
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1answer
21 views

Blender keeps adding “limit location” bone constraint to an entire armature?

Just move to 2.8. I am unable to add bone constraint: limit location to a bone in an armature. Everytime I try, the constraint is applied to the entire armature. What gives? Thx
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1answer
189 views

Copy rotation constraint adjusting influence doesn't work

In the gif below, I applied a copy rotation constraint to the lower bone of the upper arm. It is copying the rotation of the larger bone directly on top of it. While the influence is set to 1.00, it ...
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1answer
339 views

Camera track to constraint in the game engine

I have tracked camera to track a ball. When I move the ball manually, the camera tracks it. But when I apply motion using w,a,s,d keys to move it top, left,down and right, the camera stops tracking ...
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1answer
75 views

Bone constraint rotation not working correctly

I am following a skeleton rig tutorial on youtube step by step and despite having the exact same setup, my armature behaves incorrectly. https://youtu.be/jp_SqjB0468?t=920 at minute 15:40. This is the ...
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Exporting Animation with Mesh using Follow Path Constraint

new to blender, was following a video tutorial which did not show me how to export the mesh/animations, and have run into some trouble. Project is a free designed Roller Coaster, created with 5 ...
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1answer
198 views

Why does my camera start rotating randomly when following a path?

I have a camera that follows a bezier curve with a Follow Path constraint, with a Track To constraint that follows an object (named "Viewer") moving on another bezier curve with another Follow Path ...
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19 views

Constraint grease pencil strokes

I am a scholar of using blender. I have a situation-i'am using a grease pencil on surface and alembic sequence. So here is the question. Can i constraint drawn strokes to mesh for several frames and ...