In my spare time from 2020 to 2025, I designed and built Valence 3D — a 3D modeling app for iPad and iPhone. Valence empowers anyone to create 3D models with polygons and subdivision surfaces, anytime and anywhere. It’s carefully crafted to enable flow and fun. Valence is my magnum opus — the culmination of 20 years of exploration and research in real-time 3D graphics, user experience, interface and interaction design, and software engineering.