The Virtual Nao (IMAGE) University of Texas at Austin Caption The Virtual Nao, which is used in the RoboCupSoccer 3-D Simulation league, is generated by the Spark Generic Physical Multiagent Simulator (SimSpark). Credit SimSpark Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.