updateValue() {

		if ( this.node === null ) this.setNodeType( this.uniformType );

		const value = this.getValueFromReference();

		if ( Array.isArray( value ) ) {

			this.node.array = value;

		} else {

			this.node.value = value;

		}

	}
Retrieves the value from the referred object property and uses it
to updated the internal uniform.