My contributions to the field include Starting Cesium, an open-source JavaScript library for world-class 3D globes and maps Writing and editing books: WebGL Insights, OpenGL Insights, and 3D Engine Design for Virtual Globes Co-creating glTF, the runtime asset format for WebGL, OpenGL ES, and OpenGL Starting 3D Tiles for streaming massive heterogeneous 3D geospatial datasets (in progress) Teaching GPU Programming and Architecture, with students that received positions at NVIDIA, AMD, Qualcomm, and various game and movie studios Giving talks at SIGGRAPH, FOSS4G, and COM.Geo, and other conferences Writing chapters for the GPU Pro and Game Engine Gems series Reviewing various graphics courses, books, and publications. I'm on the editorial board for the Journal of Computer Graphics Techniques (JCGT)