scale( x, y, z ) {

		// scale geometry

		_m1.makeScale( x, y, z );

		this.applyMatrix4( _m1 );

		return this;

	}
Scales the geometry. This is typically done as a one time
operation, and not during a loop. Use {@link Object3D#scale} for typical
real-time mesh rotation.

@param {number} x - The x scale.
@param {number} y - The y scale.
@param {number} z - The z scale.
@return {BufferGeometry} A reference to this instance.