bias( biasNode ) {

		const textureNode = this.clone();
		textureNode.biasNode = nodeObject( biasNode );
		textureNode.referenceNode = this.getSelf();

		return nodeObject( textureNode );

	}
Samples the texture with the given bias.

@param {Node<float>} biasNode - The bias node.
@return {TextureNode} A texture node representing the texture sample.