README.md

babylon-vrm-loader

VRM porting to babylon.js.

This loader is used as THE SEED ONLINE web VRM/VCI/glb viewer.

Supported version table

babylon.js version	babylon-vrm-loader version
~4.1.0	<1.5.0
~4.2.0	^1.5.0
~5.0.0	unreleased(will be ^1.6.0)

Features

• Supports .vrm file loading
  • with extensions.VRM glTF Extension
• Supports .vci file loading
• Supports MToonMaterial
• Get bone(TransformNode) from Unity Humanoid bone mapping name
• BlendShape morphing
• Secondary Animation
• Supports VCI features(partial support)
  • VCAST_vci_material_unity
  • TODO: VCAST_vci_meta
  • TODO: VCAST_vci_embedded_script
  • TODO: VCAST_vci_audios
  • TODO: VCAST_vci_colliders
  • TODO: VCAST_vci_rigidbody
  • TODO: VCAST_vci_joints
  • TODO: VCAST_vci_item

Usage

on browser

example is here.

on Babylon.js Playgound

example is here.

with npm/yarn

$ npm install --save @babylonjs/core @babylonjs/loaders babylon-vrm-loader
# or
$ yarn add @babylonjs/core @babylonjs/loaders babylon-vrm-loader

import * as BABYLON from '@babylonjs/core'

// has side-effect
// ref. https://webpack.js.org/guides/tree-shaking#mark-the-file-as-side-effect-free
import 'babylon-vrm-loader'

// vrmFile is File object retrieved by <input type="file">.
const scene = await BABYLON.SceneLoader.LoadAsync('file:', vrmFile, engine);
const vrmManager = scene.metadata.vrmManagers[0];

// Update secondary animation
scene.onBeforeRenderObservable.add(() => {
    vrmManager.update(scene.getEngine().getDeltaTime());
});

// Model Transformation
vrmManager.rootMesh.translate(new BABYLON.Vector3(1, 0, 0), 1);

// Work with HumanoidBone
vrmManager.humanoidBone.leftUpperArm.addRotation(0, 1, 0);

// Work with BlendShape(MorphTarget)
vrmManager.morphing('Joy', 1.0);

Contributing

See CONTRIBUTING.md.

Build

$ yarn build

Debugging MToonMaterial

$ yarn debug

You can see inspector on http://localhost:8080/

Related Links

• BabylonJS/Babylon.js: Babylon.js: a complete JavaScript framework for building 3D games with HTML 5 and WebGL
• vrm-c/UniVRM: Unity package that can import and export VRM format
• virtual-cast/babylon-mtoon-material: Unity MToon Shader WebGL porting to babylon.js.

Licenses

see LICENSE.

This project uses babylon.js with Apache License, Version 2.0.