loadSkin_new method

Implementation

Future loadSkin_new(skinIndex) async {
		final skinDef = this.json['skins'][ skinIndex ];
		final pending = [];

		for (int i = 0, il = skinDef['joints'].length; i < il; i ++ ) {
			pending.add( await loadNodeShallow( skinDef['joints'][ i ] ) );
		}

		if ( skinDef['inverseBindMatrices'] != null ) {
			pending.add( await getDependency( 'accessor', skinDef['inverseBindMatrices'] ) );
		} else {
			pending.add( null );
		}

  final inverseBindMatrices = pending.removeLast();
  final jointNodes = pending;

  // Note that bones (joint nodes) may or may not be in the
  // scene graph at this time.

  final List<Bone> bones = [];
  final List<Matrix4> boneInverses = [];

  for (int i = 0, il = jointNodes.length; i < il; i ++ ) {
    final jointNode = jointNodes[ i ];

    if ( jointNode != null) {
      bones.add( jointNode );

      final mat = Matrix4.identity();

      if ( inverseBindMatrices != null ) {
        mat.copyFromUnknown( inverseBindMatrices.array, i * 16 );
      }

      boneInverses.add( mat );
    }
    else {
      console.warning( 'THREE.GLTFLoader: Joint "%s" could not be found. ${skinDef['joints'][ i ]}', );
    }
  }

  return Skeleton( bones, boneInverses );
}