<!-- AVATAR-FORGE · part 185 -->
 === null ) {

			this.boundingBox = new Box3();

		}

		const geometryCount = this._geometryCount;
		const boundingBox = this.boundingBox;
		const active = this._active;

		boundingBox.makeEmpty();
		for ( let i = 0; i < geometryCount; i ++ ) {

			if ( active[ i ] === false ) continue;

			this.getMatrixAt( i, _matrix$1 );
			this.getBoundingBoxAt( i, _box$1 ).applyMatrix4( _matrix$1 );
			boundingBox.union( _box$1 );

		}

	}

	computeBoundingSphere() {

		if ( this.boundingSphere === null ) {

			this.boundingSphere = new Sphere();

		}

		const geometryCount = this._geometryCount;
		const boundingSphere = this.boundingSphere;
		const active = this._active;

		boundingSphere.makeEmpty();
		for ( let i = 0; i < geometryCount; i ++ ) {

			if ( active[ i ] === false ) continue;

			this.getMatrixAt( i, _matrix$1 );
			this.getBoundingSphereAt( i, _sphere$2 ).applyMatrix4( _matrix$1 );
			boundingSphere.union( _sphere$2 );

		}

	}

	addGeometry( geometry, vertexCount = - 1, indexCount = - 1 ) {

		this._initializeGeometry( geometry );

		this._validateGeometry( geometry );

		// ensure we're not over geometry
		if ( this._geometryCount >= this._maxGeometryCount ) {

			throw new Error( 'BatchedMesh: Maximum geometry count reached.' );

		}

		// get the necessary range fo the geometry
		const reservedRange = {
			vertexStart: - 1,
			vertexCount: - 1,
			indexStart: - 1,
			indexCount: - 1,
		};

		let lastRange = null;
		const reservedRanges = this._reservedRanges;
		const drawRanges = this._drawRanges;
		const bounds = this._bounds;
		if ( this._geometryCount !== 0 ) {

			lastRange = reservedRanges[ reservedRanges.length - 1 ];

		}

		if ( vertexCount === - 1 ) {

			reservedRange.vertexCount = geometry.getAttribute( 'position' ).count;

		} else {

			reservedRange.vertexCount = vertexCount;

		}

		if ( lastRange === null ) {

			reservedRange.vertexStart = 0;

		} else {

			reservedRange.vertexStart = lastRange.vertexStart + lastRange.vertexCount;

		}

		const index = geometry.getIndex();
		const hasIndex = index !== null;
		if ( hasIndex ) {

			if ( indexCount	=== - 1 ) {

				reservedRange.indexCount = index.count;

			} else {

				reservedRange.indexCount = indexCount;

			}

			if ( lastRange === null ) {

				reservedRange.indexStart = 0;

			} else {

				reservedRange.indexStart = lastRange.indexStart + lastRange.indexCount;

			}

		}

		if (
			reservedRange.indexStart !== - 1 &&
			reservedRange.indexStart + reservedRange.indexCount > this._maxIndexCount ||
			reservedRange.vertexStart + reservedRange.vertexCount > this._maxVertexCount
		) {

			throw new Error( 'BatchedMesh: Reserved space request exceeds the maximum buffer size.' );

		}

		const visibility = this._visibility;
		const active = this._active;
		const matricesTexture = this._matricesTexture;
		const matricesArray = this._matricesTexture.image.data;
		const colorsTexture = this._colorsTexture;

		// push new visibility states
		visibility.push( true );
		active.push( true );

		// update id
		const geometryId = this._geometryCount;
		this._geometryCount ++;

		// initialize matrix information
		_identityMatrix.toArray( matricesArray, geometryId * 16 );
		matricesTexture.needsUpdate = true;

		// initialize the color to white
		if ( colorsTexture !== null ) {

			_whiteColor.toArray( colorsTexture.image.data, geometryId * 4 );
			colorsTexture.needsUpdate = true;

		}

		// add the reserved range and draw range objects
		reservedRanges.push( reservedRange );
		drawRanges.push( {
			start: hasIndex ? reservedRange.indexStart : reservedRange.vertexStart,
			count: - 1
		} );
		bounds.push( {
			boxInitialized: false,
			box: new Box3(),

			sphereInitialized: false,
			sphere: new Sphere()
		} );

		// set the id for the geometry
		const idAttribute = this.geometry.getAttribute( ID_ATTR_NAME );
		for ( let i = 0; i < reservedRange.vertexCount; i ++ ) {

			idAttribute.setX( reservedRange.vertexStart + i, geometryId );

		}

		idAttribute.needsUpdate = true;

		// update the geometry
		this.setGeometryAt( geometryId, geometry );

		return geometryId;

	}

	setGeometryAt( id, geometry ) {

		if ( id >= this._geometryCount ) {

			throw new Error( 'BatchedMesh: Maximum geometry count reached.' );

		}

		this._validateGeometry( geometry );

		const batchGeometry = this.geometry;
		const hasIndex = batchGeometry.getIndex() !== null;
		const dstIndex = batchGeometry.getIndex();
		const srcIndex = geometry.getIndex();
		const reservedRange = this._reservedRanges[ id ];
		if (
			hasIndex &&
			srcIndex.count > reservedRange.indexCount ||
			geometry.attributes.position.count > reservedRange.vertexCount
		) {

			throw new Error( 'BatchedMesh: Reserved space not large enough for provided geometry.' );

		}

		// copy geometry over
		const vertexStart = reservedRange.vertexStart;
		const vertexCount = reservedRange.vertexCount;
		for ( const attributeName in batchGeometry.attributes ) {

			if (