update( /*frame*/ ) {

		const morphBaseInfluence = this.morphBaseInfluence;

		if ( this.mesh.geometry.morphTargetsRelative ) {

			morphBaseInfluence.value = 1;

		} else {

			morphBaseInfluence.value = 1 - this.mesh.morphTargetInfluences.reduce( ( a, b ) => a + b, 0 );

		}

	}
Updates the state of the morphed mesh by updating the base influence.

@param {NodeFrame} frame - The current node frame.