NVIDIA isn't just showing off its Titan RTX GPU and some clever AI demos -- it also has big news for anyone interested in more realistic computer physics. The company is releasing its hardware-accelerated PhysX simulation engine as an open source project, making it accessible to virtually everyone. It's a recognition that the technology is useful for more than just convincing game physics, NVIDIA said. PhysX can help with more accurate AI and robotics simulations, including self-driving car technology. You could see vehicles and bots that are better-prepared for real-world conditions.