updateGlobal( scene, camera ) {

		this.shadowPass = ( scene.overrideMaterial !== null && scene.overrideMaterial.isShadowPassMaterial );
		this.viewMatrix = camera.matrixWorldInverse;

		this.viewNormalMatrix.getNormalMatrix( this.viewMatrix );

	}
Updates the root clipping context of a scene.

@param {Scene} scene - The scene.
@param {Camera} camera - The camera that is used to render the scene.