John Stone is a senior research programmer in the Theoretical and Computational Biophysics Group at the Beckman Institute for Advanced Science and Technology, and associate director of the NVIDIA CUDA Center of Excellence at the University of Illinois. John is the lead developer of VMD, a high-performance molecular visualization tool used by researchers all over the world. His research interests include molecular visualization, GPU computing, parallel processing, ray tracing, haptics, and virtual environments. John was awarded as an NVIDIA CUDA Fellow in 2010. In 2015, he joined the Khronos Group advisory panel for the Vulkan graphics API. He also provides consulting services for projects involving computer graphics, GPU computing, and high performance computing.