copy( lut ) {

		this.lut = lut.lut;
		this.map = lut.map;
		this.n = lut.n;
		this.minV = lut.minV;
		this.maxV = lut.maxV;

		return this;

	}
Copies the given lut.

@param {Lut} lut - The LUT to copy.
@return {Lut} A reference to this LUT.