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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Trying to do skeletal visualization in bind pose similar to blender with octahedral mode

I already achieved drawing octahedral by just porting blender code to c#+opentk. Here ported code: static float[][] bone_octahedral_verts =new float[6][] { new []{ 0.0f, 0.0f, 0.0f}, new []{ ...
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1answer
30 views

m_Entries is undefined [closed]

I am following this tutorial and this guy puts in his code m_Entries and doesn't explain it at all at least I think. So any one who has done skeletal animation show me what he is talking about by ...
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1answer
35 views

Skeletal Animation - Caching global bone transforms

Very often I see skeletal animation implemented like this: On Init - store bone's local transforms and inverse bind pose On Update - traverse the skeleton tree, multiplying local transforms on the ...
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1answer
36 views

m_BoneMapping is undefined in OpenGL Step By Step Skeletal Animation Tutorial [closed]

I am new to this website I was following this specific tutorial on skeletal animation and I have a good idea on what it is, but when I was following his implementation he used a variable called ...
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1answer
29 views

IK bones stretching vertices to ground during animation (UE4, 3DS Max, using default skeleton)

I modified the 3rd person example skeletal mesh to a simplistic model in 3DS Max 2016 student edition, by deleting all but one faces and building thereon, thus leaving the hierarchy just as it is ...
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1answer
33 views

How to handle gun position while running and aiming in an FPS

In an FPS, when a character runs, from the view of another character, the gun moves, and similarly when the character aims down sight. Are the views from the third person and from the first person ...
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0answers
41 views

How does a character creator system works?

Like in Aion for example, how does it work? Do I just need to take a basic 3D mesh of a character I created and then make some modifications to it with sliders or do I need to create different clone ...
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1answer
68 views

Character on Character fighting animations

sorry about the vague title, but these couple of videos/images might explain my situation a bit better: https://www.youtube.com/watch?v=MG1mNyjNuXk (Wolfenstein the Old Blood) ...
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1answer
55 views

Prevent character's animation from causing its mesh to interpenetrate itself

I'm making a game with a pretty large group of people that respond to things the user does. They all have the same animator attached, but the animations that play differ using a script with a ...
2
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0answers
63 views

Skeletal animation 3d models [closed]

I'm building a skeletal animation system. My goal is to make it as efficient as I can. Is there a place where I can download some 3d models (preferably from real games) So I could see if my system ...
2
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1answer
38 views

How do I make a flickering engine exhaust animation using only bone animation?

I'm trying to replicate the flickering engine exhaust animation in this SketchFab model. SketchFab doesn't support particle systems, so the animation must be a simple bone animation. Can someone ...
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97 views

How to add colision for a punching in Unreal engine 4?

I imported a skeletal mesh as a player character and now imported a punch animation and made a blueprint that plays the punch animation when leftmousebutton is pressed. So now how to add collision to ...
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2answers
286 views

ASSIMP transformation hierarchy and animations

I don't fully understand the transformation hierarchy used by ASSIMP. According to the docs (http://assimp.sourceforge.net/lib_html/structai_node.html) an aiNode's transformation is relative to its ...
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0answers
31 views

Is it normal in skeletal animation to NOT consider the translation component in bone transform matrices?

I'm using assimp to load a model, and DirectX11 and DirectX ToolKit to render it. In the document of DirectXTK's IEffectSkinning, it says: As an optimization, SkinnedEffect and DGSLEffect assume ...
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0answers
49 views

2D Skeletal animations exported to SVG

I would like to create skeletal animations, and Synfig looks quite promising. This is a video walk through of its "bones" feature, used to do skeletal animation. Ticks all the boxes thus far, ...
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0answers
40 views

2D sprite making tool for huge project?

I recently bought spriter 2D but it was a disaster, it is not a finished product at all and i encountered so many bugs and crashes with it, so please don't suggest it. I am looking for a 2D sprite ...
2
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0answers
45 views

How to set default scale on a per bone basis

Does anyone know how I can change the default scale on a per bone basis in Maya? (I'm using 2016) I want the scale to be 1,1,1 for this bone without making it smaller than it currently is. So, I ...
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0answers
20 views

Animation not visible

I made an animation with keyframes in Blender with a rig and exported it to a FBX. I then loaded it in into UE4 and I just saw the mesh fine (except for the materials, but that is another story.). So ...
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0answers
86 views

Animations in games

I wonder how skeletal animations in games work. I am Writing my own Graphics Engine for "fun", and I have come across several problems with animations. Here is how I do it right now: 1: Load the ...
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179 views

How to apply transform matrices retrieved from FBX

I'm trying to import a skeletal animation using FBX SDK. I followed this article, managing to load all the needed data, but when I try to display the animation the mesh falls apart. My knowledge of ...
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0answers
79 views

Vertex Skinning OpenGex Incorrect Transformations

I'm following the formula here, I'm using LJWGL, OpenGl, OpenGex, and Blender: I implemented the code and it works but there is a few things. First, there is a gap between the two bones, or on each ...
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0answers
64 views

Is there any way to bring animation into unity without a rig/bones?

I am developing for mobile and to make the game run on lower spec mobiles, I was only going to import bones/rig for the main character. There are other humanoid characters in the scene which do move ...
2
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1answer
50 views

Skeletal Animation Mirrored

Okay so I've been working on GPU skinning skeletal animations. I need help assessing what is going on here. Looks like the animations are completely mirrored What are the possible issues? I've been ...
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1answer
134 views

Shadow mapping bone animated model

I am trying to get shadowmapping right for my animated models. It works perfectly for static meshes but the animated models are just wiggeling a bit here's the vertex shader for rendering to the ...
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1answer
636 views

Skeletal animation in OpenGL

I'm using Assimp to do skeletal animation in my OpenGL application. I used Blender to export this one-boned model to a COLLADA file: The model has only one bone, called arm bone, that controls the ...
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1answer
1k views

Why is the root of the character rig the pelvis?

When creating character rigs for video games we always set the root of the rig and all the kinematic chains to the pelvis of the character. Is their a specific reason that we do that or is it by ...
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114 views

OpenGL MD5 Model Animation. Performance issues

A time has come when i had to implement an Animation to my Engine. I started with standart MD5 mesh/anim format since i find it easy to understand. I managed to implement a simple MD5 loader and i can ...
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148 views

Rigging Skinning of human skeleton skin mesh scanned by MRI

I have successfully developed a system in Qt/C++ for human musculoskeletal mocap simulations. I can run asf, amc, bvh motion capture files and can visualize the joint transformations. I even simulated ...
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1answer
170 views

3ds Max Skeleton Import into Unreal Engine Fail

I tried following the "Introduction to UE4 Animation and Rigging Tools" tutorial with maya but I dislike maya and don't under stand it so I tried importing the skeleton from the "3rd Person Game with ...
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1answer
280 views

Moving skeletal animation blending logic to GPU: worth it?

We have a solid skeletal animation system in our engine. It allows to set up to three animations onto each bone and blend them seamlessly. The animation update (fetching animation matrix given current ...
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0answers
161 views

Rain World : How to have intelligent movement / animation?

In the project RainWorld the characters seem to move "intelligently" as they move "unrestricted". They seem to know "how" to move their limbs and "what" needs to be done. Here for an example the ...
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1answer
988 views

How do I properly apply root motion when using a blender exported FBX in Unity?

So I realize the common way for animations to be done is in-place with sliding feet, then control the animation playback to coincide with the character's feet, etc. However, given a scenario such as a ...
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1answer
136 views

Pre-calculating skeletal animation data

I'm working on skeletal animation and so far I've got the skeleton drawn with interpolated animation working (just on the cpu still). I was thinking about changing my file format for my skeleton and ...
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1answer
839 views

Skeletal animation with ASSIMP, COLLADA, and glm

I have been trying to learn how to implement skeletal animation (skinning) from COLLADA files using ASSIMP and glm. But after a week of being stuck reading different tutorials and posts I have found ...
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1answer
580 views

Is my skeletal animation algorith/representation correct?

I'm representing a rig (skeleton) as: A root pivot point, with a position (Vector3) and a direction (Vector 3). A tree of bones, where each bone is a struct with a rotation (Quaternion) and a length ...
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1answer
316 views

How to constrain axis-angle rotation?

I have a problem where I'm performing an axis-angle rotation and am trying to constrain my rotations. Specifically I have a skeleton (model/mesh with rig, transforms are hierarchy parented to pelvis ...
2
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1answer
364 views

How to improve Batch Rendering to work with 3D skeletal animation data

I've implemented a batch rendering technique that is described in detail here: http://www.gamedev.net/page/resources/_/technical/opengl/opengl-batch-rendering-r3900 I'd like to extend it now to ...
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0answers
72 views

Relative Transformations for Bones

I'm using Blender to export my armatures in relative coordinates, and I'm trying to get to absolute coordinates in my engine. For the above example, the childBone's tip is an offset of [-1,0,0], ...
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1answer
95 views

Animating Two Objects' Interaction?

I want to animate a character who could be doing any number of things. Say for example, I want the character to get into bed, under the covers. Do I animate the character and the sheets moving ...
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1answer
545 views

Animation, Interpolation, & Structure

I have been working on animation in my small game engine recently and I am implementing some interpolation to be used with skeletal animations. I know how to do interpolation but I am not sure where ...
2
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1answer
137 views

Importing skeletal animation from vertex coordinates in maya

I have files of different frames of an animation which have the vertex co-ordinates of a human skeleton in 3D space. I want to import the animation from these keyframes into maya to perform motion ...
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2answers
415 views

How do you break apart art into components for animation?

I am a programmer and brand new to the game world, trying to get a sense of what it would take to draw simple characters like you'd see in Don't Starve or indie games like that. I have seen in their ...
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2answers
373 views

Quaternion rotation, translation, scale or 4x3/4x4 matrices for Skeletons?

I'm modding a game that uses 4x3 and 4x4 matrices to make skeletons, but I saw that an skeleton can also be made with a quaternian rotation and vector translation and scaling. What's the difference ...
2
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1answer
1k views

Assimp skeletal animation matrices

I startded to make an assimp only opengl skeletal animation demo. For that I used this: http://sourceforge.net/p/assimp/discussion/817654/thread/5462cbf5 And something is not correct in bone matrices. ...
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2answers
353 views

GLM/OpenGL: How Can I Prevent Vector Magnitude From Increasing While Rotating Bones in Skeletal Rig?

ANSWER AT THE BOTTOM OF THIS QUESTION I have been reading tutorials, articles, questions on StackExchange and books all with the subject of skeletal rigging. I have boiled my program down to just the ...
2
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2answers
251 views

Blender-to-Unity Animation Issue

I've been programming games for quite a few years now, but I recently thought I would try my hand at some simple 3D modeling and animation. I'm currently using Unity and Blender. In Blender, I was ...
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1answer
109 views

3ds Max Biped Scale Restriction

I have a 3D Model under 3ds Max and I'm trying to integrate a biped skeleton. But when I start to adjust the pelvis or any other bone I can't scale it. I don't know why, and this is driving me crazy. ...
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1answer
25 views

Animation Texture spread out when animation on 3dsMax

I have a 3d model of a human biped, i did the skeleton and attached it to my 3d model with a skin modifier. But when i move his arms a part of the trunk is comming too . Is it possible to fix this ?
2
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1answer
105 views

Issues with 2D Body/Limb system [closed]

In my game I have programmed Body and Limb classes. The Body is guaranteed to have an origin in the center of its sprite. The Body class has a List of children Limbs, each with their own offset. Every ...
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1answer
137 views

Which nodes of the Collada DAE are most relevant for game object/character use?

I'm really new to game dev / D3D. And I was looking to choose an intermediary format to work with and convert to my internally used format. Collada DAE seems to be good as it can export animation too ...