updateMatrixState() {

		//update camera and gizmos state
		this._cameraMatrixState.copy( this.object.matrix );
		this._gizmoMatrixState.copy( this._gizmos.matrix );

		if ( this.object.isOrthographicCamera ) {

			this._cameraProjectionState.copy( this.object.projectionMatrix );
			this.object.updateProjectionMatrix();
			this._zoomState = this.object.zoom;

		} else if ( this.object.isPerspectiveCamera ) {

			this._fovState = this.object.fov;

		}

	}
Updates camera and gizmos state.

@private