Questions tagged [inverse-kinematics]

For questions about using IK in rigging. Inverse Kinematics is the opposite of the default Forward Kinematics. Instead of posing each bone in a chain from the base to the tip, IK solves the rotations of preceding bone(s) in the chain automatically based on the position of the IK-constrained bone.

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463 views

My IK rigging is backwards. Twisting the mesh and pointing the wrong direction

I am an amateur rigger at best. I do not have much of a grasp on the technical side of it, so this probably seems very stupid. My rig is putting a "knot" in my mesh and will only work if the IK is ...
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1answer
447 views

Blender 2.78a crashes when setting up IK system [closed]

Okay, this has wasted fifteen minutes of my entire life. I'm using Blender 2.78a with a Windows 32-bit OS. I was just following a character creation tutorial in Youtube and I made it till the end of ...
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2answers
452 views

MakeHuman Inverse Kinematics

I have a makehuman model that I want to use for animating. However, with the current forward kinematics, it's very difficult to animate each bone one by one. So after messing around, I figured out how ...
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95 views

Control the location of my IK bone

I've created an IK bone for my left arm of my armature. I wonder how I can control it's location to be beside the armature around the hand. As shown below, when I grab it all the way it goes far from ...
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1answer
1k views

How to switch to Inverse Kinematic for Make Human model in blender 2.78?

I exported a human in mhx2 format from MakeHuman and imported it to Blender 2.78a. What is necessary to install in blender in order to see the MHX Main panel and/or switch from FK to IK mode for ...
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1answer
3k views

IK not working properly

I did the exact same IK steps in two armatures and one of them SimpleArmature works great, but with the second one HumanArmature...
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1answer
197 views

Inverse Kinematics in BGE not working

I'm beginning in Blender and trying to create my first test game, but now I'm stuck in the creation of a aim system. Basically I created a tank model and associated an armature in it. Then, I created ...
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1answer
1k views

Problem: Armature deforms mesh when after parenting

I am fairly new to Blender and recently I've been working on a new character rig from scratch. I've got the character mesh all drawn out and right now I'm learning from online tutorials on youtube on ...
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1answer
700 views

Character deforming with rigging and adding automatic weights

Im super new to blender so.. I have no idea what I'm doing wrong. I added some bones and IK and every time I add automatic weights his body gets all twisted and deformed and distorted. I tried a bunch ...
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1answer
473 views

Mesh is deformation is mirroring very strangely, how do I fix this?

I am rigging a crossbow to be exported to Unity3D. It is currently just a model of a bow, and I am trying to perfect the rig as much as possible before I model the stock. I have been trying to fix a ...
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0answers
100 views

Inverse kinematics offset?

I have a problem with my rig. As I put a IK constrain on the two bones, the constrained one is just offsetting as shown in the screenshot below Is there anything I did wrong? Best regards
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1answer
2k views

Why is my model distorting when I weight paint?

After importing a .OBG file and rigging it, when I weight paint, my model deforms. I use Blender v2.77 .
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500 views

Strange behavior of animation constraints

In my recent rigging tests i encountered some weird behavior when using animation constraints. In this example you can see the foot is lagging some frames behind. Also if you cancel the animation, ...
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1answer
531 views

IK not working for legs, where am I wrong?

I'm stuck in this armature creation where IK works pretty well for harms but knees don't curve as they should.. I set same but something is not working..
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1answer
891 views

Why does this Copy Loc contraint not work with this IK bone?

I'm working on a (toy) VR kayak simulator, but have limited rigging knowledge. I'm attempting to have two IK rigged arms holding onto a paddle, so they will animate with the paddle's movement, like ...
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1answer
97 views

How to make an IK chain stay above another IK chain

I modeled a recurve bow and now I'm rigging it. The wooden body of the bow bends correctly. But at the start of the pulling motion the string's IK chain straightens and goes trough the tip curvature. ...
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1answer
746 views

IK lagging behind to point at target bone

I am using Blender 2.75. So I have an armature for a pig. I used IK to have the legs always bend (a certain direction using a pole target) to connect with the target bone. I am pretty sure this is ...
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1answer
530 views

How to maintain IK chain angle to target?

I've got a robot assembly arm (http://sendvid.com/ze9l813s) set up with an inverse kinematics solver, but I don't know how to keep the end bone from rotating. I need that bone to remain perpendicular ...
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1answer
741 views

How to make sure the final bone in an IK chain doesn't rotate?

I've got a chain of inverse kinematic a bones, and I want the one that I grab to be unable to rotate while it is moving. How do I do this? My setup is a rigged car assembly arm: http://sendvid.com/...
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2answers
7k views

Worm/Tentacle/Tail/Spine Animation with ease

I wanted to rig and animate a worm using IK, so that if i move the tip of the tail i get the bend one would expect. Unfortunately using plain IK the tip will point towards the ground instead of ...
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2answers
773 views

Bone shrinks mysteriously under the influence of an IK Constraint

I tried setting up inverse kinematics on a very simple test character rig and the bone went all crazy. It shrinks the leg to a stump when the IK Constraint's influence is at 1. I've set it to 0.5 so ...
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0answers
299 views

What are IK bones, and what do they do?

I've been following this tutorial series, and he uses IK bones and the other types of bones that I've forgotten the name of (edit: since remembered, 'pole target'), a controlling bone under the foot ...
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1answer
3k views

Having trouble with IK bones

I'm new to Blender, and am trying to teach myself how to rig. I have a simple robot model with two arm bones and an IK bone on the hand to control the arm. The IK bone's Deform box is unchecked. I ...
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2answers
190 views

Help with IK Rigging

I have IK rigged my model legs but this happens. we all know that it suppose to go forward not backwards. Can someone help me . Thanks ^_^

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