copy( source ) {

		this.camera = source.camera.clone();

		this.intensity = source.intensity;

		this.bias = source.bias;
		this.radius = source.radius;

		this.autoUpdate = source.autoUpdate;
		this.needsUpdate = source.needsUpdate;
		this.normalBias = source.normalBias;
		this.blurSamples = source.blurSamples;

		this.mapSize.copy( source.mapSize );

		return this;

	}
Copies the values of the given light shadow instance to this instance.

@param {LightShadow} source - The light shadow to copy.
@return {LightShadow} A reference to this light shadow instance.