sLength = 6;
				const numBricksHeight = 8;
				const z0 = - numBricksLength * brickLength * 0.5;
				pos.set( 0, brickHeight * 0.5, z0 );
				quat.set( 0, 0, 0, 1 );
				for ( let j = 0; j < numBricksHeight; j ++ ) {

					const oddRow = ( j % 2 ) == 1;

					pos.z = z0;

					if ( oddRow ) {

						pos.z -= 0.25 * brickLength;

					}

					const nRow = oddRow ? numBricksLength + 1 : numBricksLength;

					for ( let i = 0; i < nRow; i ++ ) {

						let brickLengthCurrent = brickLength;
						let brickMass