getTransformedUV( uvNode ) {

		if ( this._matrixUniform === null ) this._matrixUniform = uniform( this.value.matrix );

		return this._matrixUniform.mul( vec3( uvNode, 1 ) ).xy;

	}
Transforms the given uv node with the texture transformation matrix.

@param {Node} uvNode - The uv node to transform.
@return {Node} The transformed uv node.