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ossos

Character Animation Library

<img align="right" width="160" src="/_images/Epic_MegaGrants_Recipient_logo.png?raw=true"> This project is working toward a complete character skinning & animation library for the web. First most, this library is focused on being independent from any rendering engine with examples of how to use it in webgl based engines like threejs. The one big focus is recreating the IK Rig & IK Animations type system that was demoed several years ago from Ubisoft's GDC talk on IK Rigs. With many game engines like Unity and Unreal developing their own IK Rig like systems, this project helps fill the void for web based engines like threejs, babylon, etc. Hopefully with enough help we can create something just as good as the big boys, maybe even better since its free & open source.

Setup

npm install
npm run dev

[ NOTE ] To be able to run the example, you'll need to go into /examples/_res/ and follow the instructions to clone the resource repo. The files are quite large, so they are kept in a seperate repo to keep this project as light weight as possible.

Usage

This example is the basic boiler plate example of how to pull mesh & skeletal data from a GLTF2 file then using a custom THREE.JS Material to render mesh that can be posed or animated.

const gltf = await Gltf2.fetch( '../_res/models/nabba/nabba.gltf' );

//--------------------------------
// Setup Armature
const arm  = new Armature();
for( let j of gltf.getSkin().joints ){
    arm.addBone( j.name, j.parentIndex, j.rotation, j.position, j.scale );
}

//--------------------------------
// Setup Skinning : Matrix
arm.bind( SkinMTX, 0.07 ); 
const mat = SkinMTXMaterial( 'cyan', arm.getSkinOffsets()[0] ); 

//--------------------------------
// Load Mesh
const mesh  = Gltf2Util.loadMesh( gltf, null, mat );
App.add( mesh );

Current Features