Questions tagged [skeletal-animation]
Skeletal animation is a technique by which a complex mesh (or "skin") is animated through the animation of a simpler hierarchical collection of geometry (the "bones").
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Open model file format that supports skeletal animation
I'm looking for a file format to store and load 3D models with skeletal animation data, which is free to use and distribute without licence restrictions.
I've evaluated formats like glTF and Collada (....
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Why does the skinning equation from a Collada file return a weird animation?
I'm trying to make an animation from a Collada file, but I'm not having any success in animating it correctly. I assume it's an error in the Quartenions class, either during creation from matrices or ...
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Position camera to 'head' joint's position in skeletal animation
Finished this great tutorial on skeletal animation:
https://learnopengl.com/Guest-Articles/2020/Skeletal-Animation
All works as expected, no issues!
Here is what matrixes I use to achieve skeletal ...
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What's the optimal way of reusing animation, rigs and controllers in a complex setup with multiple characters in Unity?
What's the optimal way of reusing animation, rigs and controllers in a complex setup with multiple characters in Unity 2022.3?
I've got a somewhat complex scenario:
One character that has 20 skins, ...
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What is wrong with my animation retargeting algorithm?
Animation retargeting (also called motion retargeting) is the transfer of movement from one character to another in animation (i.e. from one skeleton to another), allowing the reuse of animation on ...
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Unreal Engine Import Warning "The following bones are missing from the bind pose"
Problem
I'm receiving the following message while importing the character from mixamo.com. It does not happen for all characters but in some of them.
The following bones are missing from the bind ...
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How do I apply a post process animation blueprint to a skeleton?
I tried to migrate the rifle anims from the lyra sample project. I am using the same skeleton as the Lyra project, but the wrist is twisted once they are retargeted. If I open the anim before ...
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How do I make the joints and weights skinned with the variables I'm using?
For some time now I have been trying to do skeleton animation using Rust and OpenGL(specifically the gl library), I loaded the animation information correctly(with the gltf library), the bone ids and ...
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What is the best way to handle more bone weights than allowed in code?
I am currently attempting to incorporate animated models in my game engine, using Assimp to load the models. I can load and render the static model just fine, but when I try to enable the animation, ...
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How to blend 2 different metahumans seemlessly during animation
I'm new on this site so please let me know if this is the wrong section to post to.
I have an idea for a whole bunch of animations revolving around 2 semi-identical twins that live in the same body. I ...
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How to animate multiple animation blueprints offseting time for each instance?
I'm new to Unreal Engine and would like to get an effect similar to this one:
The idea is to have an Animation BluePrint with data from a Live Link Pose node to start with. To achieve the effect, my ...
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How to implement skeletal animation for Signed Distance Field models?
When animating a 3D model, we want the surface of the model to remain continuous (such that, for instance, the limbs do not seem to slide on the torso, but stay attached at their position).
In a ...
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Make ready player me Avatar replicate animation from Mixamo by pressing an oculus quest2 controller button
I have a ready playerme avatar that I rigged with Final IK.
I downloaded an animation from mixamo to play with this avatar. My goal is to animate the avatar with the downloaded animation once a button ...
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How to store animation data on the GPU?
I want to store my animations on the GPU via buffers (instead of using a single constant buffer which contains the current skeleton frame only), so the vertex shaders of the skeletal meshes can read ...
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How to apply shadows on an animated model
I have followed the learnopengl.com tutorial on skeletal animation, but it does not apply shadow on the animated model.
Here is the vertex shader that is used to display the character. I suspect that <...
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Spine 2D Animation with Equippable Items Dynamically at Runtime
I am attempting to make a rigged animated character using Spine but this "base" character will be able to pick up items and equip them such as jackets, helmets, etc. This will be a 2D top-...
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2D Runtime animation with different textures
We have a bunch of characters in our game. Although they look the same mainly, they do have differences. We are downloading the textures on runtime, generating an atlas that decreases the draw call, ...
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Clothing mesh penetrates character when imported into Unreal
I'm trying to import a .fbx file with animation from Maya, but the mesh has changed at some specific frames automatically, which makes my character intersect with the cloth.
The mesh itself does not ...
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Where should I design skeletons and animations?
I have just finished a course on Unreal Engine 5, where I have been introduced to managing animations through skeletons and different meshes.
My question is, where should I design such animations? Are ...
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Prevent the vertex normals from being recalculated when a skeletal mesh is deformed?
I am trying to create a game with stylized shading like Arc System Works Style, which requires the normals to be edited by hand (I do so in Blender). However, after importing to Unreal Engine, these ...
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PhysX Skeletal Animation
I am developing a game and using OpenGL for graphics API and NVidia PhysX for the game's physics. Recently I implemented skeletal animation from this site. The objects are read using assimp which ...
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Understanding matrix transformations for skeletal animation
I am working with Collada and GLTF.
Say I have a humanoid with 3 bones with the following hierarchy: B0(root) → B1 → B2.
Terminology:
bind pose is the same thing ...
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Apply a mocap to multiple different models? -> modify gltf directly?
I am currently struggling with an animation I made that I would like applied to multiple models, all different, but from the same vertices.
I already have a custom gltf importer ready but I need to ...
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Need help with Assimp skeleton animation
I have recently implemented skeleton animation in my custom engine by following this tutorial. I made several improvements based on that, and was able to load/play simple humanoid animations without ...
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Animating 3D characters in 2D platformer where the characters don't look good from directly side-on? (Eg. Kirby from Nintendo)
I am working on a 2D platformer with 3D characters where the design/intention is somewhat similar to Kirby:
https://www.youtube.com/watch?v=MuhLDoNobPw
Specifically, Kirby does not look good exactly ...
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Rendering Unreal Engine 4 sequence: character timeline animations don't show, and behave as if they are in play mode
I have a cinematic sequence with camera cuts set up that can be previewed properly. These scenes involve human skeletal character animations that I made frame by frame in the timeline. Everything ...
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Why Generic Rigs won't matching? ( Unity )
1 part - Blender
I made a character with animations in Blender. When importing in Unity, I decided to split the Armature and the Model into different FBX files.
This is how we get 2 files:
...
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Humanoid Rig force knee of my character to rotate, but it shouldn't be
Demonstration of the problem - video
My export settings
My Unity import settings
Rig Settings
Animation Settings
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Humanoid rig breaks my animation
The humanoid rig behaves strangely with my animation from Blender. Here is a demo of the problem - video.
Can anyone suggest what the problem might be?
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What does the Lock toggle in the Position Constraint Component do?
Even after reading the documentation, I just can't figure out what the parameter does.
I experimented in Unity and set different parameters for Position At Rest and Position Offset. I succeeded in ...
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Are there common types of human skeletons in gamedev industry?
I have to decide which human(oid) skeleton I'll choose to do procedural animation with it in the future. I'm looking for a flexible set of bones that would not lead to painful model reskinning later. ...
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Save current pose snapshot of a skeletal mesh as a new animation sequence asset from blueprint
What I'm trying to do is create a Blueprint Utility tool that lets me create an Animation Sequence asset to save the current Pose Snapshot of a skeletal mesh.
I see there's Create Asset node from ...
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How to calculate local orientation of child relative to parent from only global positions?
I am trying visualize a human finger's pose with a 3D model in Three.js.
The 3D model is composed of 3 bones that represent the proximal, middle, and distal bones of the human finger, connected in ...
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Unity Animator Ignoring "Higher" Layers
I have a rather rudimentary layer set up:
Lower Body: no mask, full weight, override.
Upper Body: upper body mask, full weight, override. This works as intended.
Standing Up: full body mask, full ...
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How to animate a customizable pixel art platformer character?
I am working on a 2d platformer which is made up of pixel art. I want to make my character customizable like in stardew valley. How can I implement it and create animations for my game like run , idle ...
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Mixamo Rig Hierarchy Reference (In Text List/Tree format)? (modelling in Maya for use in Unity and Mixamo)
I'm trying to find a quick reference to match Mixamos rigging hierarchy. I'm confused over which bones are 'root' and how many bones in the spine/pelvis/chest etc. I want my characters I make in Maya ...
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How can I add these bones to my meta human? Or is there a way I can make virtual bones count when retargetting?
Paid for animations thinking they would be fine and they mostly are but... the hands are using these IK bones that I do not have. Is there a way I can add the bones to my meta skeleton within unreal? ...
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Is there a standard way to rig a humanoid? [duplicate]
I am using some placeholder humanoid models for my game, which will be replaced later. I am concerned that when I replace them, they will not work with my animations, due to different rigging.
Is ...
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Some of the model's vertices are incorrectly positioned in skeletal animation
Everything is almost ready 😣. I do not understand what the problem is.
The animation works, but some vertices are not where they should be.
I am using an SMD file from Half Life. I found that these ...
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What is the standard practice for animating motion -- move character or not move character?
I've downloaded a bunch of (free) 3d warriors with animations. I've noticed for about 25% of them, the 'run' animation physically moves the character forward in the z direction. For the other 75%, the ...
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FBX Import Errors: "Multiple roots are found in the bone hierarchy"
I followed these steps:
I exported my character from Blender as an fbx file
I went to Unreal Engine and make a new folder
I paste the fbx file in that folder
I put and tried to put it with a ...
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Skeleton bone in incorrect spot in-game yet, blender rig, skeleton mesh and physics asset are all correct and behave properly
I've made a custom character and rigged it in blender. Then exported/imported into ue4. It behaves properly in the PHAT and the skeleton mesh looks fine and it all behaves properly in the simulations.
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IK script causing glitchy movement
I have a FPS character game object, which consists of just the arms. I made this IK script off of a tutorial.
...
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Blender animation's curled fingers are splayed-out when played in Unity
I have exported my character into Unity and all the animations came with it. At first, I thought I was good to go but then I made a jogging animation. In blender the hands are gripped like this:
When ...
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Unwanted blendspace bone displacement in UE4
My characters hands "fall off" in the blendspace between the animations.
Looking for a way to fix it, if anyone has any ideas.
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No local transform with skinned mesh with assimp?
I'm trying to add skeletal animation to my engine and I'm importing meshes with assimp, but I think I misunderstood the skinned mesh concepts (or don't understand assimp).
When I import a model, ...
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mesh gets twisted wildly when trying to use Unreal's mannequin's skeleton
I have modelled a simple mannequine and made a skeleton for it in Blender. As far as I can judge, this skeleton copies the Unreal's standard mannequine's skeleton perfectly...
All the hierarchy and ...
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How can I allow player-created content to add morphs to Daz Genesis 8 characters(UE4)?
We use Daz Genesis 8 characters in our project. Content creators would load their morphs from Daz to our game. We would like to add these morphs to our characters so they can be modded, edited and ...
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How to support importing .uasset files in game for content creators(UE4)?
I would like to support importing clothes(as SkeletalMeshes) and props(as StaticMeshes) as uasset files into game for content creators, which obviously have not been packaged with the game.
Basically ...
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Blender bone animation with extruded vertex not moving as expected
I'm really new to blender. I've managed to make a model body and bone structure.
I've two problems:
But when I try to rotate the arm bone, my entire body moves. Why is this happening? I was following ...
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